+++ /dev/null
-package Ora2Pg;
-#------------------------------------------------------------------------------
-# Project : Oracle to PostgreSQL database schema converter
-# Name : Ora2Pg.pm
-# Language : 5.006 built for i686-linux
-# OS : linux RedHat 6.2 kernel 2.2.14-5
-# Copyright: Copyright (c) 2000 : Gilles Darold - All rights reserved -
-# Function : Main module used to export Oracle database schema to PostgreSQL
-# Usage : See documentation in this file with perldoc.
-#------------------------------------------------------------------------------
-# This program is free software; you can redistribute it and/or modify it under
-# the same terms as Perl itself.
-#------------------------------------------------------------------------------
-
-#use strict;
-use vars qw($VERSION $PSQL);
-use Carp qw(confess);
-use DBI;
-use POSIX qw(locale_h);
-
-#set locale to LC_NUMERIC C
-setlocale(LC_NUMERIC,"C");
-
-
-$VERSION = "1.12";
-$PSQL = "psql";
-
-=head1 NAME
-
-Ora2Pg - Oracle to PostgreSQL database schema converter
-
-
-=head1 SYNOPSIS
-
- BEGIN {
- $ENV{ORACLE_HOME} = '/usr/local/oracle/oracle816';
- }
-
- use strict;
-
- use Ora2Pg;
-
- # Init the database connection
- my $dbsrc = 'dbi:Oracle:host=testdb.samse.fr;sid=TEST;port=1521';
- my $dbuser = 'system';
- my $dbpwd = 'manager';
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- {
- PrintError => 0,
- RaiseError => 1,
- AutoCommit => 0
- }
- );
-
- # Create the POSTGRESQL representation of all objects in the database
- $schema->export_schema("output.sql");
-
- exit(0);
-
-or if you only want to extract some tables:
-
- # Create an instance of the Ora2Pg perl module
- my @tables = ('tab1', 'tab2', 'tab3');
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- tables => \@tables,
- or # Tables to extract
- tables => [('tab1','tab2')],
- debug => 1 # To show somethings when running
- );
-
-or if you only want to extract the 10 first tables:
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- max => 10 # 10 first tables to extract
- );
-
-or if you only want to extract tables 10 to 20:
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- min => 10, # Begin extraction at indice 10
- max => 20 # End extraction at indice 20
- );
-
-To choose a particular Oracle schema to export just set the following option
-to your schema name:
-
- schema => 'APPS'
-
-This schema definition can also be needed when you want to export data. If export
-failed and complain that the table doesn't exists use this to prefix the table name
-by the schema name.
-
-If you want to use PostgreSQL 7.3 schema support activate the init option
-'export_schema' set to 1. Default is no schema export
-
-To know at which indices tables can be found during extraction use the option:
-
- showtableid => 1
-
-To extract all views set the type option as follow:
-
- type => 'VIEW'
-
-To extract all grants set the type option as follow:
-
- type => 'GRANT'
-
-To extract all sequences set the type option as follow:
-
- type => 'SEQUENCE'
-
-To extract all triggers set the type option as follow:
-
- type => 'TRIGGER'
-
-To extract all functions set the type option as follow:
-
- type => 'FUNCTION'
-
-To extract all procedures set the type option as follow:
-
- type => 'PROCEDURE'
-
-To extract all packages and body set the type option as follow:
-
- type => 'PACKAGE'
-
-Default is table extraction
-
- type => 'TABLE'
-
-To extract all data from table extraction as INSERT statement use:
-
- type => 'DATA'
-
-To extract all data from table extraction as COPY statement use:
-
- type => 'COPY'
-
-and data_limit => n to specify the max tuples to return. If you set
-this options to 0 or nothing, no limitation are used. Additional option
-'table', 'min' and 'max' can also be used.
-
-When use of COPY or DATA you can export data by calling method:
-
-$schema->export_data("output.sql");
-
-Data are dumped to the given filename or to STDOUT with no argument.
-You can also send these data directly to a PostgreSQL backend using
- the following method:
-
-$schema->send_to_pgdb($destdatasrc,$destuser,$destpasswd);
-
-In this case you must call export_data() without argument after the
-call to method send_to_pgdb().
-
-If you set type to COPY and you want to dump data directly to a PG database,
-you must call method send_to_pgdb but data will not be sent via DBD::Pg but
-they will be load to the database using the psql command. Calling this method
-is istill required to be able to extract database name, hostname and port
-information. Edit the $PSQL variable to match the path of your psql
-command (nothing to edit if psql is in your path).
-
-
-=head1 DESCRIPTION
-
-Ora2Pg is a perl OO module used to export an Oracle database schema
-to a PostgreSQL compatible schema.
-
-It simply connect to your Oracle database, extract its structure and
-generate a SQL script that you can load into your PostgreSQL database.
-
-I'm not a Oracle DBA so I don't really know something about its internal
-structure so you may find some incorrect things. Please tell me what is
-wrong and what can be better.
-
-It currently dump the database schema (tables, views, sequences, indexes, grants),
-with primary, unique and foreign keys into PostgreSQL syntax without editing the
-SQL code generated.
-
-It now can dump Oracle data into PostgreSQL DB as online process. You can choose
-what columns can be exported for each table.
-
-Functions, procedures and triggers PL/SQL code generated must be reviewed to match
-the PostgreSQL syntax. Some usefull recommandation on porting Oracle to PostgreSQL
-can be found at http://techdocs.postgresql.org/ under the "Converting from other
-Databases to PostgreSQL" Oracle part. I just notice one thing more is that the
-trunc() function in Oracle is the same for number or date so be carefull when
-porting to PostgreSQL to use trunc() for number and date_trunc() for date.
-
-
-=head1 ABSTRACT
-
-The goal of the Ora2Pg perl module is to cover all part needed to export
-an Oracle database to a PostgreSQL database without other thing that provide
-the connection parameters to the Oracle database.
-
-Features must include:
-
- - Database schema export (tables, views, sequences, indexes),
- with unique, primary and foreign key.
- - Grants/privileges export by user and group.
- - Table selection (by name and max table) export.
- - Export Oracle schema to PostgreSQL 7.3 schema.
- - Predefined functions/triggers/procedures/packages export.
- - Data export.
- - Sql query converter (todo)
-
-My knowledge regarding database is really poor especially for Oracle
-so contribution is welcome.
-
-
-=head1 REQUIREMENT
-
-You just need the DBI, DBD::Pg and DBD::Oracle perl module to be installed
-
-
-
-=head1 PUBLIC METHODS
-
-=head2 new HASH_OPTIONS
-
-Creates a new Ora2Pg object.
-
-Supported options are:
-
- - datasource : DBD datasource (required)
- - user : DBD user (optional with public access)
- - password : DBD password (optional with public access)
- - schema : Oracle internal schema to extract
- - type : Type of data to extract, can be TABLE,VIEW,GRANT,SEQUENCE,
- TRIGGER,FUNCTION,PROCEDURE,DATA,COPY,PACKAGE
- - debug : Print the current state of the parsing
- - export_schema : Export Oracle schema to PostgreSQL 7.3 schema
- - tables : Extract only the given tables (arrayref)
- - showtableid : Display only the table indice during extraction
- - min : Indice to begin extraction. Default to 0
- - max : Indice to end extraction. Default to 0 mean no limits
- - data_limit : Number max of tuples to return during data extraction (default 0 no limit)
-
-Attempt that this list should grow a little more because all initialization is
-done by this way.
-
-=cut
-
-sub new
-{
- my ($class, %options) = @_;
-
- # This create an OO perl object
- my $self = {};
- bless ($self, $class);
-
- # Initialize this object
- $self->_init(%options);
-
- # Return the instance
- return($self);
-}
-
-
-=head2 export_data FILENAME
-
-Print SQL data output to a filename or
-to STDOUT if no file is given.
-
-Must be used only if type option is set to DATA or COPY
-=cut
-
-sub export_data
-{
- my ($self, $outfile) = @_;
-
- $self->_get_sql_data($outfile);
-}
-
-
-=head2 export_sql FILENAME
-
-Print SQL conversion output to a filename or
-simply return these data if no file is given.
-
-=cut
-
-sub export_schema
-{
- my ($self, $outfile) = @_;
-
- if ($outfile) {
- # Send output to the given file
- open(FILE,">$outfile") or die "Can't open $outfile: $!";
- print FILE $self->_get_sql_data();
- close FILE;
- return;
- }
-
- # Return data as string
- return $self->_get_sql_data();
-
-}
-
-
-=head2 send_to_pgdb DEST_DATASRC DEST_USER DEST_PASSWD
-
-Open a DB handle to a PostgreSQL database
-
-=cut
-
-sub send_to_pgdb
-{
- my ($self, $destsrc, $destuser, $destpasswd) = @_;
-
- # Connect the database
- $self->{dbhdest} = DBI->connect($destsrc, $destuser, $destpasswd);
-
- $destsrc =~ /dbname=([^;]*)/;
- $self->{dbname} = $1;
- $destsrc =~ /host=([^;]*)/;
- $self->{dbhost} = $1;
- $self->{dbhost} = 'localhost' if (!$self->{dbhost});
- $destsrc =~ /port=([^;]*)/;
- $self->{dbport} = $1;
- $self->{dbport} = 5432 if (!$self->{dbport});
- $self->{dbuser} = $destuser;
-
- # Check for connection failure
- if (!$self->{dbhdest}) {
- die "Error : $DBI::err ... $DBI::errstr\n";
- }
-
-}
-
-
-=head2 modify_struct TABLE_NAME ARRAYOF_FIELDNAME
-
-Modify a table structure during export. Only given fieldname
-will be exported.
-
-=cut
-
-sub modify_struct
-{
- my ($self, $table, @fields) = @_;
-
- map { $_ = lc($_) } @fields;
- $table = lc($table);
-
- push(@{$self->{modify}{$table}}, @fields);
-
-}
-
-
-
-
-#### Private subroutines ####
-
-=head1 PRIVATE METHODS
-
-=head2 _init HASH_OPTIONS
-
-Initialize a Ora2Pg object instance with a connexion to the
-Oracle database.
-
-=cut
-
-sub _init
-{
- my ($self, %options) = @_;
-
- # Connect the database
- $self->{dbh} = DBI->connect($options{datasource}, $options{user}, $options{password});
-
- # Check for connection failure
- if (!$self->{dbh}) {
- die "Error : $DBI::err ... $DBI::errstr\n";
- }
-
- # Save the DB connection
- $self->{datasource} = $options{datasource};
- $self->{user} = $options{user};
- $self->{password} = $options{password};
-
- $self->{debug} = 0;
- $self->{debug} = 1 if ($options{debug});
-
- $self->{limited} = ();
- $self->{limited} = $options{tables} if ($options{tables});
-
- $self->{export_schema} = 0;
- $self->{export_schema} = $options{export_schema} if ($options{export_schema});
-
- $self->{schema} = '';
- $self->{schema} = $options{schema} if ($options{schema});
-
- $self->{min} = 0;
- $self->{min} = $options{min} if ($options{min});
-
- $self->{max} = 0;
- $self->{max} = $options{max} if ($options{max});
-
- $self->{showtableid} = 0;
- $self->{showtableid} = $options{showtableid} if ($options{showtableid});
-
- $self->{dbh}->{LongReadLen} = 0;
- #$self->{dbh}->{LongTruncOk} = 1;
-
- $self->{data_limit} = 0;
- $self->{data_current} = 0;
- $self->{data_limit} = $options{data_limit} if (exists $options{data_limit});
-
- # Retreive all table informations
- if (!exists $options{type} || ($options{type} eq 'TABLE') || ($options{type} eq 'DATA') || ($options{type} eq 'COPY')) {
- $self->{dbh}->{LongReadLen} = 100000;
- $self->_tables();
- } elsif ($options{type} eq 'VIEW') {
- $self->{dbh}->{LongReadLen} = 100000;
- $self->_views();
- } elsif ($options{type} eq 'GRANT') {
- $self->_grants();
- } elsif ($options{type} eq 'SEQUENCE') {
- $self->_sequences();
- } elsif ($options{type} eq 'TRIGGER') {
- $self->{dbh}->{LongReadLen} = 100000;
- $self->_triggers();
- } elsif (($options{type} eq 'FUNCTION') || ($options{type} eq 'PROCEDURE')) {
- $self->{dbh}->{LongReadLen} = 100000;
- $self->_functions($options{type});
- } elsif ($options{type} eq 'PACKAGE') {
- $self->{dbh}->{LongReadLen} = 100000;
- $self->_packages();
- } else {
- die "type option must be TABLE, VIEW, GRANT, SEQUENCE, TRIGGER, PACKAGE, FUNCTION or PROCEDURE\n";
- }
- $self->{type} = $options{type};
-
- # Disconnect from the database
- $self->{dbh}->disconnect() if ($self->{dbh});
-
-}
-
-
-# We provide a DESTROY method so that the autoloader doesn't
-# bother trying to find it. We also close the DB connexion
-sub DESTROY { }
-
-
-=head2 _grants
-
-This function is used to retrieve all privilege information.
-
-It extract all Oracle's ROLES to convert them as Postgres groups
-and search all users associated to these roles.
-
-Set the main hash $self->{groups}.
-Set the main hash $self->{grantss}.
-
-=cut
-
-sub _grants
-{
- my ($self) = @_;
-
-print STDERR "Retrieving groups/users information...\n" if ($self->{debug});
- $self->{users} = $self->_get_users();
- $self->{groups} = $self->_get_roles();
- $self->{grants} = $self->_get_all_grants();
-
-}
-
-
-=head2 _sequences
-
-This function is used to retrieve all sequences information.
-
-Set the main hash $self->{sequences}.
-
-=cut
-
-sub _sequences
-{
- my ($self) = @_;
-
-print STDERR "Retrieving sequences information...\n" if ($self->{debug});
- $self->{sequences} = $self->_get_sequences();
-
-}
-
-
-=head2 _triggers
-
-This function is used to retrieve all triggers information.
-
-Set the main hash $self->{triggers}.
-
-=cut
-
-sub _triggers
-{
- my ($self) = @_;
-
-print STDERR "Retrieving triggers information...\n" if ($self->{debug});
- $self->{triggers} = $self->_get_triggers();
-
-}
-
-
-=head2 _functions
-
-This function is used to retrieve all functions information.
-
-Set the main hash $self->{functions}.
-
-=cut
-
-sub _functions
-{
- my ($self, $type) = @_;
-
-print STDERR "Retrieving functions information...\n" if ($self->{debug});
- $self->{functions} = $self->_get_functions($type);
-
-}
-
-
-=head2 _packages
-
-This function is used to retrieve all packages information.
-
-Set the main hash $self->{packages}.
-
-=cut
-
-sub _packages
-{
- my ($self) = @_;
-
-print STDERR "Retrieving packages information...\n" if ($self->{debug});
- $self->{packages} = $self->_get_packages();
-
-}
-
-
-=head2 _tables
-
-This function is used to retrieve all table information.
-
-Set the main hash of the database structure $self->{tables}.
-Keys are the names of all tables retrieved from the current
-database. Each table information compose an array associated
-to the table_info key as array reference. In other way:
-
- $self->{tables}{$class_name}{table_info} = [(OWNER,TYPE)];
-
-DBI TYPE can be TABLE, VIEW, SYSTEM TABLE, GLOBAL TEMPORARY, LOCAL TEMPORARY,
-ALIAS, SYNONYM or a data source specific type identifier. This only extract
-TABLE type.
-
-It also get the following informations in the DBI object to affect the
-main hash of the database structure :
-
- $self->{tables}{$class_name}{field_name} = $sth->{NAME};
- $self->{tables}{$class_name}{field_type} = $sth->{TYPE};
-
-It also call these other private subroutine to affect the main hash
-of the database structure :
-
- @{$self->{tables}{$class_name}{column_info}} = $self->_column_info($class_name, $owner);
- @{$self->{tables}{$class_name}{primary_key}} = $self->_primary_key($class_name, $owner);
- @{$self->{tables}{$class_name}{unique_key}} = $self->_unique_key($class_name, $owner);
- @{$self->{tables}{$class_name}{foreign_key}} = $self->_foreign_key($class_name, $owner);
-
-=cut
-
-sub _tables
-{
- my ($self) = @_;
-
- # Get all tables information given by the DBI method table_info
-print STDERR "Retrieving table information...\n" if ($self->{debug});
-
- my $sth = $self->_table_info or die $self->{dbh}->errstr;
- my @tables_infos = $sth->fetchall_arrayref();
-
- if ($self->{showtableid}) {
- foreach my $table (@tables_infos) {
- for (my $i=0; $i<=$#{$table};$i++) {
- print STDERR "[", $i+1, "] ${$table}[$i]->[2]\n";
- }
- }
- return;
- }
-my @done = ();
- foreach my $table (@tables_infos) {
- # Set the table information for each class found
- my $i = 1;
-print STDERR "Min table dump set to $self->{min}.\n" if ($self->{debug} && $self->{min});
-print STDERR "Max table dump set to $self->{max}.\n" if ($self->{debug} && $self->{max});
- foreach my $t (@$table) {
- # Jump to desired extraction
-if (grep(/^$t->[2]$/, @done)) {
-print STDERR "Duplicate entry found: $t->[0] - $t->[1] - $t->[2]\n";
-} else {
-push(@done, $t->[2]);
-}
- $i++, next if ($self->{min} && ($i < $self->{min}));
- last if ($self->{max} && ($i > $self->{max}));
- next if (($#{$self->{limited}} >= 0) && !grep(/^$t->[2]$/, @{$self->{limited}}));
-print STDERR "[$i] " if ($self->{max} || $self->{min});
-print STDERR "Scanning $t->[2] (@$t)...\n" if ($self->{debug});
-
- # Check of uniqueness of the table
- if (exists $self->{tables}{$t->[2]}{field_name}) {
- print STDERR "Warning duplicate table $t->[2], SYNONYME ? Skipped.\n";
- next;
- }
-
- # usually OWNER,TYPE. QUALIFIER is omitted until I know what to do with that
- $self->{tables}{$t->[2]}{table_info} = [($t->[1],$t->[3])];
- # Set the fields information
- my $sth = $self->{dbh}->prepare("SELECT * FROM $t->[1].$t->[2] WHERE 1=0");
- if (!defined($sth)) {
- warn "Can't prepare statement: $DBI::errstr";
- next;
- }
- $sth->execute;
- if ($sth->err) {
- warn "Can't execute statement: $DBI::errstr";
- next;
- }
- $self->{tables}{$t->[2]}{field_name} = $sth->{NAME};
- $self->{tables}{$t->[2]}{field_type} = $sth->{TYPE};
-
- @{$self->{tables}{$t->[2]}{column_info}} = $self->_column_info($t->[2],$t->[1]);
- @{$self->{tables}{$t->[2]}{primary_key}} = $self->_primary_key($t->[2],$t->[1]);
- @{$self->{tables}{$t->[2]}{unique_key}} = $self->_unique_key($t->[2],$t->[1]);
- ($self->{tables}{$t->[2]}{foreign_link}, $self->{tables}{$t->[2]}{foreign_key}) = $self->_foreign_key($t->[2],$t->[1]);
- ($self->{tables}{$t->[2]}{uniqueness}, $self->{tables}{$t->[2]}{indexes}) = $self->_get_indexes($t->[2],$t->[1]);
- $i++;
- }
- }
-
-}
-
-
-=head2 _views
-
-This function is used to retrieve all views information.
-
-Set the main hash of the views definition $self->{views}.
-Keys are the names of all views retrieved from the current
-database values are the text definition of the views.
-
-It then set the main hash as follow:
-
- # Definition of the view
- $self->{views}{$table}{text} = $view_infos{$table};
-
-=cut
-
-sub _views
-{
- my ($self) = @_;
-
- # Get all views information
-print STDERR "Retrieving views information...\n" if ($self->{debug});
- my %view_infos = $self->_get_views();
-
- if ($self->{showtableid}) {
- my $i = 1;
- foreach my $table (sort keys %view_infos) {
- print STDERR "[$i] $table\n";
- $i++;
- }
- return;
- }
-
-print STDERR "Min view dump set to $self->{min}.\n" if ($self->{debug} && $self->{min});
-print STDERR "Max view dump set to $self->{max}.\n" if ($self->{debug} && $self->{max});
- my $i = 1;
- foreach my $table (sort keys %view_infos) {
- # Set the table information for each class found
- # Jump to desired extraction
- next if ($table =~ /\$/);
- $i++, next if ($self->{min} && ($i < $self->{min}));
- last if ($self->{max} && ($i > $self->{max}));
- next if (($#{$self->{limited}} >= 0) && !grep(/^$table$/, @{$self->{limited}}));
-print STDERR "[$i] " if ($self->{max} || $self->{min});
-print STDERR "Scanning $table...\n" if ($self->{debug});
- $self->{views}{$table}{text} = $view_infos{$table};
- ## Added JFR : 3/3/02 : Retrieve also aliases from views
- $self->{views}{$table}{alias}= $view_infos{$table}{alias};
- $i++;
- }
-
-}
-
-
-=head2 _get_sql_data
-
-Returns a string containing the entire SQL Schema definition compatible with PostgreSQL
-
-=cut
-
-sub _get_sql_data
-{
- my ($self, $outfile) = @_;
-
- my $sql_header = "-- Generated by Ora2Pg, the Oracle database Schema converter, version $VERSION\n";
- $sql_header .= "-- Copyright 2000 Gilles DAROLD. All rights reserved.\n";
- $sql_header .= "--\n";
- $sql_header .= "-- This program is free software; you can redistribute it and/or modify it under\n";
- $sql_header .= "-- the same terms as Perl itself.\n\n";
- $sql_header .= "BEGIN TRANSACTION;\n\n";
-
- my $sql_output = "";
-
- # Process view only
- if ($self->{type} eq 'VIEW') {
-print STDERR "Add views definition...\n" if ($self->{debug});
- if ($self->{export_schema}) {
- $sql_output .= "SET search_path = $self->{schema}, pg_catalog;\n\n";
- }
- foreach my $view (sort keys %{$self->{views}}) {
- $self->{views}{$view}{text} =~ s/\s*WITH\s+.*$//s;
- if (!@{$self->{views}{$view}{alias}}) {
- $sql_output .= "CREATE VIEW \"\L$view\E\" AS \L$self->{views}{$view}{text};\n";
- } else {
- $sql_output .= "CREATE VIEW \"\L$view\E\" (";
- my $count = 0;
- foreach my $d (@{$self->{views}{$view}{alias}}) {
- if ($count == 0) {
- $count = 1;
- } else {
- $sql_output .= ", "
- }
- $sql_output .= "\"\L$d->[0]\E\"";
- }
- $sql_output .= ") AS \L$self->{views}{$view}{text};\n";
- }
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type $self->{type}\n";
- } else {
- $sql_output .= "\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
- # Process grant only
- if ($self->{type} eq 'GRANT') {
-print STDERR "Add groups/users privileges...\n" if ($self->{debug});
- if ($self->{export_schema}) {
- $sql_output .= "SET search_path = $self->{schema}, pg_catalog;\n\n";
- }
- # Add groups definition
- my $groups = '';
- my @users = ();
- my @grps = ();
- foreach (@{$self->{users}}) {
- next if (exists $self->{groups}{"$_"});
- next if ($self->{schema} && ($_ ne $self->{schema}));
- $sql_header .= "CREATE USER $_ WITH PASSWORD 'secret';\n";
- }
- foreach my $role (sort keys %{$self->{groups}}) {
- push(@grps, $role);
- $groups .= "CREATE GROUP $role WITH USER " . join(',', @{$self->{groups}{$role}}) . ";\n";
- }
- $sql_header .= "\n" . $groups . "\n";
-
- # Add privilege definition
- my $grants = '';
- foreach my $table (sort keys %{$self->{grants}}) {
- $grants .= "REVOKE ALL ON $table FROM PUBLIC;\n";
- foreach my $priv (sort keys %{$self->{grants}{$table}}) {
- my $usr = '';
- my $grp = '';
- foreach my $user (@{$self->{grants}{$table}{$priv}}) {
- if (grep(/^$user$/, @grps)) {
- $grp .= "$user,";
- } else {
- $usr .= "$user,";
- }
- }
- $grp =~ s/,$//;
- $usr =~ s/,$//;
- if ($grp) {
- $grants .= "GRANT $priv ON $table TO GROUP $grp;\n";
- } else {
- $grants .= "GRANT $priv ON $table TO $usr;\n";
- }
- }
- }
-
- if (!$grants) {
- $$grants = "-- Nothing found of type $self->{type}\n";
- }
-
- $sql_output .= "\n" . $grants . "\n";
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
- # Process sequences only
- if ($self->{type} eq 'SEQUENCE') {
-print STDERR "Add sequences definition...\n" if ($self->{debug});
- foreach my $seq (@{$self->{sequences}}) {
- my $cache = 1;
- $cache = $seq->[5] if ($seq->[5]);
- my $cycle = '';
- $cycle = ' CYCLE' if ($seq->[6] eq 'Y');
- if ($seq->[2] > 2147483646) {
- $seq->[2] = 2147483646;
- }
- if ($seq->[1] < -2147483647) {
- $seq->[1] = -2147483647;
- }
- if ($self->{export_schema}) {
- $sql_output .= "SET search_path = $self->{schema}, pg_catalog;\n\n";
- }
- $sql_output .= "CREATE SEQUENCE \"\L$seq->[0]\E\" INCREMENT $seq->[3] MINVALUE $seq->[1] MAXVALUE $seq->[2] START $seq->[4] CACHE $cache$cycle;\n";
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type $self->{type}\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
- # Process triggers only. PL/SQL code is pre-converted to PL/PGSQL following
- # the recommendation of Roberto Mello, see http://techdocs.postgresql.org/
- # Oracle's PL/SQL to PostgreSQL PL/pgSQL HOWTO
- if ($self->{type} eq 'TRIGGER') {
-print STDERR "Add triggers definition...\n" if ($self->{debug});
- foreach my $trig (@{$self->{triggers}}) {
- $trig->[1] =~ s/ EACH ROW//;
- chop($trig->[4]);
- chomp($trig->[4]);
- # Check if it's a pg rule
- if ($trig->[1] =~ /INSTEAD OF/) {
- $sql_output .= "CREATE RULE \"\L$trig->[0]\E\" AS\n\tON \L$trig->[3]\E\n\tDO INSTEAD\n(\n\t$trig->[4]\n);\n\n";
- } else {
-
- #--------------------------------------------
- # PL/SQL to PL/PGSQL code conversion
- #--------------------------------------------
- # Change NVL to COALESCE
- #$trig->[4] =~ s/NVL\(/coalesce(/igs;
- # Change trunc() to date_trunc('day', field)
- # Trunc is replaced with date_trunc if we find date in the name of the value
- # because Oracle have the same trunc function on number and date type :-(((
- #$trig->[4] =~ s/trunc\(([^\)]*date[^\)]*)\)/date_trunc('day', $1)/igs;
- # Change SYSDATE to 'now'
- #$trig->[4] =~ s/SYSDATE/CURRENT_TIMESTAMP/igs;
- # Change nextval on sequence
- # Oracle's sequence grammar is sequence_name.nextval.
- # Postgres's sequence grammar is nextval('sequence_name').
- #$trig->[4] =~ s/(\w+)\.nextval/nextval('$1')/isg;
- # Escaping Single Quotes
- #$trig->[4] =~ s/'/''/sg;
-
- if ($self->{export_schema}) {
- $sql_output .= "SET search_path = $self->{schema}, pg_catalog;\n\n";
- }
- $sql_output .= "CREATE FUNCTION pg_fct_\L$trig->[0]\E () RETURNS TRIGGER AS '\n$trig->[4]\n' LANGUAGE 'plpgsql'\n\n";
- $sql_output .= "CREATE TRIGGER \L$trig->[0]\E\n\t$trig->[1] $trig->[2] ON \"\L$trig->[3]\E\" FOR EACH ROW\n\tEXECUTE PROCEDURE pg_fct_\L$trig->[0]\E();\n\n";
- }
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type $self->{type}\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
- # Process functions only
- if (($self->{type} eq 'FUNCTION') || ($self->{type} eq 'PROCEDURE')) {
-print STDERR "Add functions definition...\n" if ($self->{debug});
- foreach my $fct (sort keys %{$self->{functions}}) {
- my @tmp = ();
- if ($self->{functions}{$fct} =~ /^[\s\t]*function/is) {
- #$self->{functions}{$fct} =~ /function[\s\n\t]*$fct[\s\n\t]*\(([^\)]*)\)/is;
- $self->{functions}{$fct} =~ /function[\s\n\t]*$fct[\s\n\t]*\(([^\)]*)\)[\s\n\t]*is/is;
- @tmp = split(/\n/, $1);
- } else {
- #$self->{functions}{$fct} =~ /procedure[\s\n\t]*$fct[\s\n\t]*\(([^\)]*)\)/is;
- $self->{functions}{$fct} =~ /procedure[\s\n\t]*$fct[\s\n\t]*\(([^\)]*)\)[\s\n\t]*is\W/is;
- @tmp = split(/\n/, $1);
- }
- my @argu = split(/,/, join(' ', @tmp));
- map { s/^.* in //is } @argu;
- map { s/^.* out //is } @argu;
- map { $_ = $self->_sql_type(uc($_)) } @argu;
- $self->{functions}{$fct} =~ /return ([^\s]*) is/is;
- $self->{functions}{$fct} = "-- Oracle function declaration, please edit to match PostgreSQL syntax.\n$self->{functions}{$fct}";
- $sql_output .= "-- PostgreSQL possible function declaration, please edit to match your needs.\nCREATE FUNCTION \L$fct\E(" . join(',', @argu) . ") RETURNS " . $self->_sql_type(uc($1)) . " AS '\n$self->{functions}{$fct}\n' LANGUAGE 'sql'\n\n";
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type $self->{type}\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
- # Process functions only
- if ($self->{type} eq 'PACKAGE') {
-print STDERR "Add packages definition...\n" if ($self->{debug});
- foreach my $pkg (sort keys %{$self->{packages}}) {
- $sql_output .= "-- Oracle package '$pkg' declaration, please edit to match PostgreSQL syntax.\n";
- $sql_output .= "$self->{packages}{$pkg}\n";
- $sql_output .= "-- End of Oracle package '$pkg' declaration\n\n";
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type $self->{type}\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
- }
-
-
-
- # Extract data only
- if (($self->{type} eq 'DATA') || ($self->{type} eq 'COPY')) {
- # Connect the database
- $self->{dbh} = DBI->connect($self->{datasource}, $self->{user}, $self->{password});
- # Check for connection failure
- if (!$self->{dbh}) {
- die "Error : $DBI::err ... $DBI::errstr\n";
- }
-
- if (!$self->{dbhdest}) {
- if ($outfile) {
- open(FILE,">$outfile") or die "Can't open $outfile: $!";
- print FILE $sql_header;
- } else {
- print $sql_header;
- }
- } else {
- if ($self->{type} eq 'COPY') {
- open(DBH, "| $PSQL -h $self->{dbhost} -p $self->{dbport} -d $self->{dbname}") or die "Can't open $PSQL command, $!\n";
- }
- }
-
- if ($self->{export_schema}) {
- if ($self->{dbhdest}) {
- if ($self->{type} ne 'COPY') {
- my $s = $self->{dbhdest}->prepare("SET search_path = $self->{schema}, pg_catalog") or die $self->{dbhdest}->errstr . "\n";
- $s->execute or die $s->errstr . "\n";
- } else {
- print DBH "SET search_path = $self->{schema}, pg_catalog;\n";
- }
- } else {
- if ($outfile) {
- print FILE "SET search_path = $self->{schema}, pg_catalog;\n";
- } else {
- print "SET search_path = $self->{schema}, pg_catalog;\n";
- }
- }
- }
-
- foreach my $table (keys %{$self->{tables}}) {
-print STDERR "Dumping table $table...\n" if ($self->{debug});
- my @tt = ();
- my @nn = ();
- my $s_out = "INSERT INTO \"\L$table\E\" (";
- if ($self->{type} eq 'COPY') {
- $s_out = "\nCOPY \"\L$table\E\" ";
- }
- my @fname = ();
- foreach my $i ( 0 .. $#{$self->{tables}{$table}{field_name}} ) {
- my $fieldname = ${$self->{tables}{$table}{field_name}}[$i];
- if (exists $self->{modify}{"\L$table\E"}) {
- next if (!grep(/$fieldname/i, @{$self->{modify}{"\L$table\E"}}));
- }
- push(@fname, lc($fieldname));
- foreach my $f (@{$self->{tables}{$table}{column_info}}) {
- next if ($f->[0] ne "$fieldname");
- my $type = $self->_sql_type($f->[1], $f->[2], $f->[5], $f->[6]);
- $type = "$f->[1], $f->[2]" if (!$type);
- push(@tt, $type);
- push(@nn, $f->[0]);
- if ($self->{type} ne 'COPY') {
- $s_out .= "\"\L$f->[0]\E\",";
- }
- last;
- }
- }
- if ($self->{type} eq 'COPY') {
- $s_out .= '(' . join(',', @fname) . ") FROM stdin;\n";
- }
-
- if ($self->{type} ne 'COPY') {
- $s_out =~ s/,$//;
- $s_out .= ") VALUES (";
- }
- # Extract all data from the current table
- $self->{data_current} = 0;
- $self->{data_end} = 0;
- while ( !$self->{data_end} ) {
- my $sth = $self->_get_data($table, \@nn, \@tt);
- $self->{data_end} = 1 if (!$self->{data_limit});
- my $count = 0;
- my $sql = '';
- if ($self->{type} eq 'COPY') {
- if ($self->{dbhdest}) {
- $sql = $s_out;
- } else {
- if ($outfile) {
- print FILE $s_out;
- } else {
- print $s_out;
- }
- }
- }
- while (my $row = $sth->fetch) {
- if ($self->{type} ne 'COPY') {
- if ($self->{dbhdest}) {
- $sql .= $s_out;
- } else {
- if ($outfile) {
- print FILE $s_out;
- } else {
- print $s_out;
- }
- }
- }
- for (my $i = 0; $i <= $#{$row}; $i++) {
- if ($self->{type} ne 'COPY') {
- if ($tt[$i] =~ /(char|date|time|text)/) {
- $row->[$i] =~ s/'/''/gs;
- if ($row->[$i] ne '') {
- $row->[$i] = "'$row->[$i]'";
- } else {
- $row->[$i] = 'NULL';
- }
- if ($self->{dbhdest}) {
- $sql .= $row->[$i];
- } else {
- if ($outfile) {
- print FILE $row->[$i];
- } else {
- print $row->[$i];
- }
- }
- } else {
- $row->[$i] =~ s/,/./;
- if ($row->[$i] eq '') {
- $row->[$i] = 'NULL';
- }
- if ($self->{dbhdest}) {
- $sql .= $row->[$i];
- } else {
- if ($outfile) {
- print FILE $row->[$i];
- } else {
- print $row->[$i];
- }
- }
- }
- if ($i < $#{$row}) {
- if ($self->{dbhdest}) {
- $sql .= ",";
- } else {
- if ($outfile) {
- print FILE ",";
- } else {
- print ",";
- }
- }
- }
- } else {
- # remove end of line
- $row->[$i] =~ s/\n/\\n/gs;
-
- if ($tt[$i] !~ /(char|date|time|text)/) {
- $row->[$i] =~ s/,/./;
- }
- if ($row->[$i] eq '') {
- $row->[$i] = '\N';
- }
- if ($self->{dbhdest}) {
- $sql .= $row->[$i];
- } else {
- if ($outfile) {
- print FILE $row->[$i];
- } else {
- print $row->[$i];
- }
- }
- if ($i < $#{$row}) {
- if ($self->{dbhdest}) {
- $sql .= "\t";
- } else {
- if ($outfile) {
- print FILE "\t";
- } else {
- print "\t";
- }
- }
- } else {
- if ($self->{dbhdest}) {
- $sql .= "\n";
- } else {
- if ($outfile) {
- print FILE "\n";
- } else {
- print "\n";
- }
- }
- }
- }
- }
- if ($self->{type} ne 'COPY') {
- if ($self->{dbhdest}) {
- $sql .= ");\n";
- } else {
- if ($outfile) {
- print FILE ");\n";
- } else {
- print ");\n";
- }
- }
- }
- $count++;
- }
- if ($self->{type} eq 'COPY') {
- if ($self->{dbhdest}) {
- $sql .= "\\.\n";
- } else {
- if ($outfile) {
- print FILE "\\.\n";
- } else {
- print "\\.\n";
- }
- }
- }
- if ($self->{data_limit}) {
- $self->{data_end} = 1 if ($count+1 < $self->{data_limit});
- }
- # Insert data if we are in online processing mode
- if ($self->{dbhdest}) {
- if ($self->{type} ne 'COPY') {
- my $s = $self->{dbhdest}->prepare($sql) or die $self->{dbhdest}->errstr . "\n";
- $s->execute or die $s->errstr . "\n";
- } else {
- print DBH "$sql";
- }
- }
- }
- }
-
- # Disconnect from the database
- $self->{dbh}->disconnect() if ($self->{dbh});
-
- if (!$self->{dbhdest}) {
- if ($outfile) {
- print FILE "\nEND TRANSACTION;\n";
- } else {
- print "\nEND TRANSACTION;\n";
- }
- }
-
- $self->{dbhdest}->disconnect() if ($self->{dbhdest});
-
- if ($self->{type} eq 'COPY') {
- close DBH;
- }
-
- return;
- }
-
-
-
- # Dump the database structure
- if ($self->{export_schema}) {
- $sql_output .= "CREATE SCHEMA \L$self->{schema}\E;\n\n";
- $sql_output .= "SET search_path = $self->{schema}, pg_catalog;\n\n";
- }
- foreach my $table (keys %{$self->{tables}}) {
-print STDERR "Dumping table $table...\n" if ($self->{debug});
- $sql_output .= "CREATE ${$self->{tables}{$table}{table_info}}[1] \"\L$table\E\" (\n";
- my $sql_ukey = "";
- my $sql_pkey = "";
- foreach my $i ( 0 .. $#{$self->{tables}{$table}{field_name}} ) {
- foreach my $f (@{$self->{tables}{$table}{column_info}}) {
- next if ($f->[0] ne "${$self->{tables}{$table}{field_name}}[$i]");
- my $type = $self->_sql_type($f->[1], $f->[2], $f->[5], $f->[6]);
- $type = "$f->[1], $f->[2]" if (!$type);
- $sql_output .= "\t\"\L$f->[0]\E\" $type";
- # Set the primary key definition
- foreach my $k (@{$self->{tables}{$table}{primary_key}}) {
- next if ($k ne "$f->[0]");
- $sql_pkey .= "\"\L$k\E\",";
- last;
- }
- if ($f->[4] ne "") {
- $sql_output .= " DEFAULT $f->[4]";
- } elsif (!$f->[3] || ($f->[3] eq 'N')) {
- $sql_output .= " NOT NULL";
- }
- # Set the unique key definition
- foreach my $k (@{$self->{tables}{$table}{unique_key}}) {
- next if ( ($k ne "$f->[0]") || (grep(/^$k$/, @{$self->{tables}{$table}{primary_key}})) );
- $sql_ukey .= "\"\L$k\E\",";
- last;
- }
- $sql_output .= ",\n";
- last;
- }
- }
- $sql_ukey =~ s/,$//;
- $sql_pkey =~ s/,$//;
- $sql_output .= "\tUNIQUE ($sql_ukey),\n" if ($sql_ukey);
- $sql_output .= "\tPRIMARY KEY ($sql_pkey),\n" if ($sql_pkey);
- $sql_output =~ s/,$//;
- $sql_output .= ");\n";
- foreach my $idx (keys %{$self->{tables}{$table}{indexes}}) {
- map { s/^/"/ } @{$self->{tables}{$table}{indexes}{$idx}};
- map { s/$/"/ } @{$self->{tables}{$table}{indexes}{$idx}};
- my $columns = join(',', @{$self->{tables}{$table}{indexes}{$idx}});
- my $unique = '';
- $unique = ' UNIQUE' if ($self->{tables}{$table}{uniqueness}{$idx} eq 'UNIQUE');
- $sql_output .= "CREATE$unique INDEX \L$idx\E ON \"\L$table\E\" (\L$columns\E);\n";
- }
- $sql_output .= "\n";
- }
-
- foreach my $table (keys %{$self->{tables}}) {
-print STDERR "Dumping RI $table...\n" if ($self->{debug});
- my $sql_ukey = "";
- my $sql_pkey = "";
-
- # Add constraint definition
- my @done = ();
- foreach my $h (@{$self->{tables}{$table}{foreign_key}}) {
- next if (grep(/^$h->[0]$/, @done));
- my $desttable = '';
- foreach (keys %{$self->{tables}{$table}{foreign_link}{$h->[0]}{remote}}) {
- $desttable .= "$_";
- }
- push(@done, $h->[0]);
- $sql_output .= "ALTER TABLE \"\L$table\E\" ADD CONSTRAINT \L$h->[0]\E FOREIGN KEY (" . lc(join(',', @{$self->{tables}{$table}{foreign_link}{$h->[0]}{local}})) . ") REFERENCES \L$desttable\E (" . lc(join(',', @{$self->{tables}{$table}{foreign_link}{$h->[0]}{remote}{$desttable}})) . ")";
- $sql_output .= " MATCH $h->[2]" if ($h->[2]);
- $sql_output .= " ON DELETE $h->[3]";
- $sql_output .= " $h->[4]";
- $sql_output .= " INITIALLY $h->[5];\n";
-
- }
- }
-
- if (!$sql_output) {
- $sql_output = "-- Nothing found of type TABLE\n";
- }
-
- return $sql_header . $sql_output . "\nEND TRANSACTION;\n";
-}
-
-
-=head2 _get_data TABLE
-
-This function implements a Oracle-native data extraction.
-
-Return a list of array reference containing the data
-
-=cut
-
-sub _get_data
-{
- my ($self, $table, $name, $type) = @_;
-
- my $str = "SELECT ";
- my $tmp = "SELECT ";
- for my $k (0 .. $#{$name}) {
- if ( $type->[$k] =~ /(date|time)/) {
- $str .= "to_char($name->[$k], 'YYYY-MM-DD HH24:MI:SS'),";
- } else {
- $str .= "$name->[$k],";
- }
- $tmp .= "$name->[$k],";
- }
- $str =~ s/,$//;
- $tmp =~ s/,$//;
- my $tmp2 = $tmp;
- $tmp2 =~ s/SELECT /SELECT ROWNUM as noline,/;
-
- # Fix a problem when the table need to be prefixed by the schema
- if ($self->{schema}) {
- $table = "$self->{schema}.$table";
- }
- if ($self->{data_limit}) {
- $str = $tmp . " FROM ( $tmp2 FROM ( $tmp FROM $table) ";
- $str .= " WHERE ROWNUM < ($self->{data_limit} + $self->{data_current})) ";
- $str .= " WHERE noline >= $self->{data_current}";
- } else {
- $str .= " FROM $table";
- }
- $self->{data_current} += $self->{data_limit};
-
- # Fix a problem when exporting type LONG and LOB
- $self->{dbh}->{'LongReadLen'} = 1023*1024;
- $self->{dbh}->{'LongTruncOk'} = 1;
-
- my $sth = $self->{dbh}->prepare($str) or die $sth->errstr . "\n";
- $sth->execute or die $sth->errstr . "\n";
-
- return $sth;
-
-}
-
-
-=head2 _sql_type INTERNAL_TYPE LENGTH PRECISION SCALE
-
-This function return the PostgreSQL datatype corresponding to the
-Oracle internal type.
-
-=cut
-
-sub _sql_type
-{
- my ($self, $type, $len, $precision, $scale) = @_;
-
- my %TYPE = (
- # Oracle only has one flexible underlying numeric type, NUMBER.
- # Without precision and scale it is set to PG type float8 to match all needs
- 'NUMBER' => 'numeric',
- # CHAR types limit of 2000 bytes with default to 1 if no length is given.
- # PG char type has max length set to 8104 so it should match all needs
- 'CHAR' => 'char',
- 'NCHAR' => 'char',
- # VARCHAR types the limit is 2000 bytes in Oracle 7 and 4000 in Oracle 8.
- # PG varchar type has max length iset to 8104 so it should match all needs
- 'VARCHAR' => 'varchar',
- 'NVARCHAR' => 'varchar',
- 'VARCHAR2' => 'varchar',
- 'NVARCHAR2' => 'varchar',
- # The DATE data type is used to store the date and time information.
- # Pg type timestamp should match all needs
- 'DATE' => 'timestamp',
- # Type LONG is like VARCHAR2 but with up to 2Gb.
- # PG type text should match all needs or if you want you could use blob
- 'LONG' => 'text', # Character data of variable length
- 'LONG RAW' => 'text', # Raw binary data of variable length
- # Types LOB and FILE are like LONG but with up to 4Gb.
- # PG type text should match all needs or if you want you could use blob (large object)
- 'CLOB' => 'text', # A large object containing single-byte characters
- 'NLOB' => 'text', # A large object containing national character set data
- 'BLOB' => 'text', # Binary large object
- 'BFILE' => 'text', # Locator for external large binary file
- # The RAW type is presented as hexadecimal characters. The contents are treated as binary data. Limit of 2000 bytes
- # Pg type text should match all needs or if you want you could use blob (large object)
- 'RAW' => 'text',
- 'ROWID' => 'oid',
- 'LONG RAW' => 'text',
- 'FLOAT' => 'float8'
- );
-
- # Overide the length
- $len = $precision if ( ($type eq 'NUMBER') && $precision );
-
- if (exists $TYPE{$type}) {
- if ($len) {
- if ( ($type eq "CHAR") || ($type =~ /VARCHAR/) ) {
- # Type CHAR have default length set to 1
- # Type VARCHAR(2) must have a given length
- $len = 1 if (!$len && ($type eq "CHAR"));
- return "$TYPE{$type}($len)";
- } elsif ($type eq "NUMBER") {
- # This is an integer
- if (!$scale) {
- if ($precision) {
- return "numeric($precision)";
- }
- } else {
- if ($precision) {
- return "decimal($precision,$scale)";
- }
- }
- return "$TYPE{$type}";
- } else {
- return "$TYPE{$type}";
- }
- } else {
-
- return $TYPE{$type};
- }
- }
-
- return;
-}
-
-
-=head2 _column_info TABLE OWNER
-
-This function implements a Oracle-native column information.
-
-Return a list of array reference containing the following informations
-for each column the given a table
-
-[(
- column name,
- column type,
- column length,
- nullable column,
- default value
-)]
-
-=cut
-
-sub _column_info
-{
- my ($self, $table, $owner) = @_;
-
- $owner = "AND OWNER='$owner' " if ($owner);
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT COLUMN_NAME, DATA_TYPE, DATA_LENGTH, NULLABLE, DATA_DEFAULT, DATA_PRECISION, DATA_SCALE
-FROM DBA_TAB_COLUMNS
-WHERE TABLE_NAME='$table' $owner
-ORDER BY COLUMN_ID
-END
- $sth->execute or die $sth->errstr;
- my $data = $sth->fetchall_arrayref();
-if ($self->{debug}) {
- foreach my $d (@$data) {
-print STDERR "\t$d->[0] => type:$d->[1] , length:$d->[2], precision:$d->[5], scale:$d->[6], nullable:$d->[3] , default:$d->[4]\n";
- }
-}
-
- return @$data;
-
-}
-
-
-=head2 _primary_key TABLE OWNER
-
-This function implements a Oracle-native primary key column
-information.
-
-Return a list of all column name defined as primary key
-for the given table.
-
-=cut
-
-sub _primary_key
-{
- my ($self, $table, $owner) = @_;
-
- $owner = "AND all_constraints.OWNER='$owner' AND all_cons_columns.OWNER=all_constraints.OWNER" if ($owner);
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT all_cons_columns.COLUMN_NAME
-FROM all_constraints, all_cons_columns
-WHERE all_constraints.CONSTRAINT_TYPE='P'
-AND all_constraints.constraint_name=all_cons_columns.constraint_name
-AND all_constraints.STATUS='ENABLED'
-AND all_constraints.TABLE_NAME='$table' $owner
-ORDER BY all_cons_columns.position
-END
- $sth->execute or die $sth->errstr;
- my @data = ();
- while (my $row = $sth->fetch) {
- push(@data, $row->[0]) if ($row->[0] !~ /\$/);
- }
- return @data;
-}
-
-
-=head2 _unique_key TABLE OWNER
-
-This function implements a Oracle-native unique key column
-information.
-
-Return a list of all column name defined as unique key
-for the given table.
-
-=cut
-
-sub _unique_key
-{
- my($self, $table, $owner) = @_;
-
- $owner = "AND all_constraints.OWNER='$owner'" if ($owner);
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT all_cons_columns.COLUMN_NAME
-FROM all_constraints, all_cons_columns
-WHERE all_constraints.CONSTRAINT_TYPE='U'
-AND all_constraints.constraint_name=all_cons_columns.constraint_name
-AND all_constraints.STATUS='ENABLED'
-AND all_constraints.TABLE_NAME='$table' $owner
-ORDER BY all_cons_columns.position
-END
- $sth->execute or die $sth->errstr;
-
- my @data = ();
- while (my $row = $sth->fetch) {
- push(@data, $row->[0]) if ($row->[0] !~ /\$/);
- }
- return @data;
-}
-
-
-=head2 _foreign_key TABLE OWNER
-
-This function implements a Oracle-native foreign key reference
-information.
-
-Return a list of hash of hash of array reference. Ouuf! Nothing very difficult.
-The first hash is composed of all foreign key name. The second hash just have
-two key known as 'local' and remote' corresponding to the local table where the
-foreign key is defined and the remote table where the key refer.
-
-The foreign key name is composed as follow:
-
- 'local_table_name->remote_table_name'
-
-Foreign key data consist in two array representing at the same indice the local
-field and the remote field where the first one refer to the second.
-Just like this:
-
- @{$link{$fkey_name}{local}} = @local_columns;
- @{$link{$fkey_name}{remote}} = @remote_columns;
-
-=cut
-
-sub _foreign_key
-{
- my ($self, $table, $owner) = @_;
-
- $owner = "AND OWNER='$owner'" if ($owner);
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT CONSTRAINT_NAME,R_CONSTRAINT_NAME,SEARCH_CONDITION,DELETE_RULE,DEFERRABLE,DEFERRED,R_OWNER
-FROM DBA_CONSTRAINTS
-WHERE CONSTRAINT_TYPE='R'
-AND STATUS='ENABLED'
-AND TABLE_NAME='$table' $owner
-END
- $sth->execute or die $sth->errstr;
-
- my @data = ();
- my %link = ();
- my @tab_done = ();
- while (my $row = $sth->fetch) {
- next if (grep(/^$row->[0]$/, @tab_done));
- push(@data, [ @$row ]);
- push(@tab_done, $row->[0]);
- my $sql = "SELECT DISTINCT COLUMN_NAME FROM DBA_CONS_COLUMNS WHERE CONSTRAINT_NAME='$row->[0]' $owner";
- my $sth2 = $self->{dbh}->prepare($sql) or die $self->{dbh}->errstr;
- $sth2->execute or die $sth2->errstr;
- my @done = ();
- while (my $r = $sth2->fetch) {
- if (!grep(/^$r->[0]$/, @done)) {
- push(@{$link{$row->[0]}{local}}, $r->[0]);
- push(@done, $r->[0]);
- }
- }
- $owner = "AND OWNER = '$row->[6]'" if ($owner);
- $sql = "SELECT DISTINCT TABLE_NAME,COLUMN_NAME FROM DBA_CONS_COLUMNS WHERE CONSTRAINT_NAME='$row->[1]' $owner";
- $sth2 = $self->{dbh}->prepare($sql) or die $self->{dbh}->errstr;
- $sth2->execute or die $sth2->errstr;
- @done = ();
- while (my $r = $sth2->fetch) {
- if (!grep(/^$r->[1]$/, @done)) {
- push(@{$link{$row->[0]}{remote}{$r->[0]}}, $r->[1]);
- push(@done, $r->[1]);
- }
-
- }
- }
-
- return \%link, \@data;
-}
-
-
-=head2 _get_users
-
-This function implements a Oracle-native users information.
-
-Return a hash of all users as an array.
-
-=cut
-
-sub _get_users
-{
- my($self) = @_;
-
- # Retrieve all USERS defined in this database
- my $str = "SELECT USERNAME FROM DBA_USERS";
- if (!$self->{schema}) {
- $str .= " WHERE USERNAME <> 'SYS' AND USERNAME <> 'SYSTEM' AND USERNAME <> 'DBSNMP' AND USERNAME <> 'OUTLN'";
- } else {
- $str .= " WHERE USERNAME = '$self->{schema}'";
- }
- $str .= " ORDER BY USERNAME";
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
-
- $sth->execute or die $sth->errstr;
- my @users = ();
- while (my $row = $sth->fetch) {
- push(@users, $row->[0]);
- }
-
- return \@users;
-}
-
-
-
-=head2 _get_roles
-
-This function implements a Oracle-native roles
-information.
-
-Return a hash of all groups (roles) as an array of associated users.
-
-=cut
-
-sub _get_roles
-{
- my($self) = @_;
-
- # Retrieve all ROLES defined in this database
- my $str = "SELECT GRANTED_ROLE,GRANTEE FROM DBA_ROLE_PRIVS WHERE GRANTEE NOT IN (select distinct role from dba_roles)";
- if (!$self->{schema}) {
- $str .= " AND GRANTEE <> 'SYS' AND GRANTEE <> 'SYSTEM' AND GRANTEE <> 'DBSNMP' AND GRANTEE <> 'OUTLN'";
- } else {
- $str .= " AND GRANTEE = '$self->{schema}'";
- }
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
-
- $sth->execute or die $sth->errstr;
- my %roles = ();
- while (my $row = $sth->fetch) {
- push(@{$roles{"$row->[0]"}}, $row->[1]);
- }
-
- return \%roles;
-}
-
-
-=head2 _get_all_grants
-
-This function implements a Oracle-native user privilege
-information.
-
-Return a hash of all tables grants as an array of associated users.
-
-=cut
-
-sub _get_all_grants
-{
- my($self) = @_;
-
- my @PG_GRANTS = ('DELETE', 'INSERT', 'SELECT', 'UPDATE');
-
- # Retrieve all ROLES defined in this database
- my $str = "SELECT table_name,privilege,grantee FROM DBA_TAB_PRIVS";
- if ($self->{schema}) {
- $str .= " WHERE GRANTEE = '$self->{schema}'";
- } else {
- $str .= " WHERE GRANTEE <> 'SYS' AND GRANTEE <> 'SYSTEM' AND GRANTEE <> 'DBSNMP' AND GRANTEE <> 'OUTLN'";
- }
- $str .= " ORDER BY TABLE_NAME";
-
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
-
- $sth->execute or die $sth->errstr;
- my %grants = ();
- while (my $row = $sth->fetch) {
- push(@{$grants{"$row->[0]"}{"$row->[1]"}}, $row->[2]) if (grep(/$row->[1]/, @PG_GRANTS));
- }
-
- return \%grants;
-}
-
-
-
-=head2 _get_indexes TABLE OWNER
-
-This function implements a Oracle-native indexes information.
-
-Return hash of array containing all unique index and a hash of
-array of all indexes name which are not primary keys for the
-given table.
-
-=cut
-
-sub _get_indexes
-{
- my ($self, $table, $owner) = @_;
-
- my $sub_owner = '';
- if ($owner) {
- $owner = "AND dba_indexes.OWNER='$owner' AND dba_ind_columns.INDEX_OWNER=dba_indexes.OWNER";
- $sub_owner = "AND OWNER=dba_indexes.TABLE_OWNER";
- }
- # Retrieve all indexes
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT DISTINCT dba_ind_columns.INDEX_NAME, dba_ind_columns.COLUMN_NAME, dba_indexes.UNIQUENESS
-FROM dba_ind_columns, dba_indexes
-WHERE dba_ind_columns.TABLE_NAME='$table' $owner
-AND dba_indexes.INDEX_NAME=dba_ind_columns.INDEX_NAME
-AND dba_ind_columns.INDEX_NAME NOT IN (SELECT CONSTRAINT_NAME FROM all_constraints WHERE TABLE_NAME='$table' $sub_owner)
-END
- $sth->execute or die $sth->errstr;
-
- my %data = ();
- my %unique = ();
- while (my $row = $sth->fetch) {
- $unique{$row->[0]} = $row->[2];
- push(@{$data{$row->[0]}}, $row->[1]);
- }
-
- return \%unique, \%data;
-}
-
-
-=head2 _get_sequences
-
-This function implements a Oracle-native sequences
-information.
-
-Return a hash of array of sequence name with MIN_VALUE, MAX_VALUE,
-INCREMENT and LAST_NUMBER for the given table.
-
-=cut
-
-sub _get_sequences
-{
- my($self) = @_;
-
- # Retrieve all indexes
- my $str = "SELECT DISTINCT SEQUENCE_NAME, MIN_VALUE, MAX_VALUE, INCREMENT_BY, LAST_NUMBER, CACHE_SIZE, CYCLE_FLAG FROM DBA_SEQUENCES";
- if (!$self->{schema}) {
- $str .= " WHERE SEQUENCE_OWNER <> 'SYS' AND SEQUENCE_OWNER <> 'SYSTEM' AND SEQUENCE_OWNER <> 'DBSNMP' AND SEQUENCE_OWNER <> 'OUTLN'";
- } else {
- $str .= " WHERE SEQUENCE_OWNER = '$self->{schema}'";
- }
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
- $sth->execute or die $sth->errstr;
-
- my @seqs = ();
- while (my $row = $sth->fetch) {
- push(@seqs, [ @$row ]);
- }
-
- return \@seqs;
-}
-
-
-=head2 _get_views
-
-This function implements a Oracle-native views information.
-
-Return a hash of view name with the SQL query it is based on.
-
-=cut
-
-sub _get_views
-{
- my($self) = @_;
-
- # Retrieve all views
- my $str = "SELECT VIEW_NAME,TEXT FROM DBA_VIEWS";
- if (!$self->{schema}) {
- $str .= " WHERE OWNER <> 'SYS' AND OWNER <> 'SYSTEM' AND OWNER <> 'DBSNMP' AND OWNER <> 'OUTLN'";
- } else {
- $str .= " WHERE OWNER = '$self->{schema}'";
- }
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
- $sth->execute or die $sth->errstr;
-
- my %data = ();
- while (my $row = $sth->fetch) {
- $data{$row->[0]} = $row->[1];
- @{$data{$row->[0]}{alias}} = $self->_alias_info ($row->[0]);
- }
-
- return %data;
-}
-
-=head2 _alias_info
-
-This function implements a Oracle-native column information.
-
-Return a list of array reference containing the following informations
-for each alias of the given view
-
-[(
- column name,
- column id
-)]
-
-=cut
-
-sub _alias_info
-{
- my ($self, $view) = @_;
-
- my $sth = $self->{dbh}->prepare(<{dbh}->errstr;
-SELECT COLUMN_NAME, COLUMN_ID
-FROM DBA_TAB_COLUMNS
-WHERE TABLE_NAME='$view'
-END
- $sth->execute or die $sth->errstr;
- my $data = $sth->fetchall_arrayref();
- if ($self->{debug}) {
- foreach my $d (@$data) {
- print STDERR "\t$d->[0] => column id:$d->[1]\n";
- }
- }
-
- return @$data;
-
-}
-
-=head2 _get_triggers
-
-This function implements a Oracle-native triggers information.
-
-Return an array of refarray of all triggers informations
-
-=cut
-
-sub _get_triggers
-{
- my($self) = @_;
-
- # Retrieve all indexes
- my $str = "SELECT TRIGGER_NAME, TRIGGER_TYPE, TRIGGERING_EVENT, TABLE_NAME, TRIGGER_BODY FROM DBA_TRIGGERS WHERE STATUS='ENABLED'";
- if (!$self->{schema}) {
- $str .= " AND OWNER <> 'SYS' AND OWNER <> 'SYSTEM' AND OWNER <> 'DBSNMP' AND OWNER <> 'OUTLN'";
- } else {
- $str .= " AND OWNER = '$self->{schema}'";
- }
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
- $sth->execute or die $sth->errstr;
-
- my @triggers = ();
- while (my $row = $sth->fetch) {
- push(@triggers, [ @$row ]);
- }
-
- return \@triggers;
-}
-
-
-=head2 _get_functions
-
-This function implements a Oracle-native functions information.
-
-Return a hash of all function name with their PLSQL code
-
-=cut
-
-sub _get_functions
-{
- my($self, $type) = @_;
-
- # Retrieve all indexes
- my $str = "SELECT DISTINCT OBJECT_NAME,OWNER FROM DBA_OBJECTS WHERE OBJECT_TYPE='$type' AND STATUS='VALID'";
- if (!$self->{schema}) {
- $str .= " AND OWNER <> 'SYS' AND OWNER <> 'SYSTEM' AND OWNER <> 'DBSNMP' AND OWNER <> 'OUTLN'";
- } else {
- $str .= " AND OWNER = '$self->{schema}'";
- }
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
- $sth->execute or die $sth->errstr;
-
- my %functions = ();
- my @fct_done = ();
- while (my $row = $sth->fetch) {
- next if (grep(/^$row->[0]$/, @fct_done));
- push(@fct_done, $row->[0]);
- my $sql = "SELECT TEXT FROM DBA_SOURCE WHERE OWNER='$row->[1]' AND NAME='$row->[0]' ORDER BY LINE";
- my $sth2 = $self->{dbh}->prepare($sql) or die $self->{dbh}->errstr;
- $sth2->execute or die $sth2->errstr;
- while (my $r = $sth2->fetch) {
- $functions{"$row->[0]"} .= $r->[0];
- }
- }
-
- return \%functions;
-}
-
-
-=head2 _get_packages
-
-This function implements a Oracle-native packages information.
-
-Return a hash of all function name with their PLSQL code
-
-=cut
-
-sub _get_packages
-{
- my ($self) = @_;
-
- # Retrieve all indexes
- my $str = "SELECT DISTINCT OBJECT_NAME,OWNER FROM DBA_OBJECTS WHERE OBJECT_TYPE='PACKAGE' AND STATUS='VALID'";
- if (!$self->{schema}) {
- $str .= " AND OWNER <> 'SYS' AND OWNER <> 'SYSTEM' AND OWNER <> 'DBSNMP' AND OWNER <> 'OUTLN'";
- } else {
- $str .= " AND OWNER = '$self->{schema}'";
- }
-
- my $sth = $self->{dbh}->prepare($str) or die $self->{dbh}->errstr;
- $sth->execute or die $sth->errstr;
-
- my %packages = ();
- my @fct_done = ();
- while (my $row = $sth->fetch) {
-print STDERR "\tFound Package: $row->[0]\n" if ($self->{debug});
- next if (grep(/^$row->[0]$/, @fct_done));
- push(@fct_done, $row->[0]);
- my $sql = "SELECT TEXT FROM DBA_SOURCE WHERE OWNER='$row->[1]' AND NAME='$row->[0]' AND (TYPE='PACKAGE' OR TYPE='PACKAGE BODY') ORDER BY TYPE, LINE";
- my $sth2 = $self->{dbh}->prepare($sql) or die $self->{dbh}->errstr;
- $sth2->execute or die $sth2->errstr;
- while (my $r = $sth2->fetch) {
- $packages{"$row->[0]"} .= $r->[0];
- }
- }
-
- return \%packages;
-}
-
-
-
-=head2 _table_info
-
-This function retrieve all Oracle-native tables information.
-
-Return a handle to a DB query statement
-
-=cut
-
-
-sub _table_info
-{
- my $self = shift;
-
- my $sql = "SELECT
- NULL TABLE_CAT,
- at.OWNER TABLE_SCHEM,
- at.TABLE_NAME,
- tc.TABLE_TYPE,
- tc.COMMENTS REMARKS
- from ALL_TABLES at, ALL_TAB_COMMENTS tc
- where at.OWNER = tc.OWNER
- and at.TABLE_NAME = tc.TABLE_NAME
- ";
-
- if ($self->{schema}) {
- $sql .= " and at.OWNER='$self->{schema}'";
- } else {
- $sql .= "AND at.OWNER <> 'SYS' AND at.OWNER <> 'SYSTEM' AND at.OWNER <> 'DBSNMP' AND at.OWNER <> 'OUTLN'";
- }
- $sql .= " order by tc.TABLE_TYPE, at.OWNER, at.TABLE_NAME";
- my $sth = $self->{dbh}->prepare( $sql ) or return undef;
- $sth->execute or return undef;
- $sth;
-}
-
-1;
-
-__END__
-
-
-=head1 AUTHOR
-
-Gilles Darold
-
-
-=head1 COPYRIGHT
-
-Copyright (c) 2001 Gilles Darold - All rights reserved.
-
-This program is free software; you can redistribute it and/or modify it under
-the same terms as Perl itself.
-
-
-=head1 BUGS
-
-This perl module is in the same state as my knowledge regarding database,
-it can move and not be compatible with older version so I will do my best
-to give you official support for Ora2Pg. Your volontee to help construct
-it and your contribution are welcome.
-
-
-=head1 SEE ALSO
-
-L, L, L
-
-
-=head1 ACKNOWLEDGEMENTS
-
-Thanks to Jason Servetar who decided me to implement data extraction.
-
-=cut
-
-
+++ /dev/null
-NAME
- Ora2Pg - Oracle to PostgreSQL database schema converter
-
-SYNOPSIS
- BEGIN {
- $ENV{ORACLE_HOME} = '/usr/local/oracle/oracle816';
- }
-
- use strict;
-
- use Ora2Pg;
-
- # Init the database connection
- my $dbsrc = 'dbi:Oracle:host=testdb.samse.fr;sid=TEST;port=1521';
- my $dbuser = 'system';
- my $dbpwd = 'manager';
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- {
- PrintError => 0,
- RaiseError => 1,
- AutoCommit => 0
- }
- );
-
- # Create the POSTGRESQL representation of all objects in the database
- $schema->export_schema("output.sql");
-
- exit(0);
-
- or if you only want to extract some tables:
-
- # Create an instance of the Ora2Pg perl module
- my @tables = ('tab1', 'tab2', 'tab3');
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- tables => \@tables,
- or # Tables to extract
- tables => [('tab1','tab2')],
- debug => 1 # To show somethings when running
- );
-
- or if you only want to extract the 10 first tables:
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- max => 10 # 10 first tables to extract
- );
-
- or if you only want to extract tables 10 to 20:
-
- # Create an instance of the Ora2Pg perl module
- my $schema = new Ora2Pg (
- datasource => $dbsrc, # Database DBD datasource
- user => $dbuser, # Database user
- password => $dbpwd, # Database password
- min => 10, # Begin extraction at indice 10
- max => 20 # End extraction at indice 20
- );
-
- To choose a particular Oracle schema to export just set the following
- option to your schema name:
-
- schema => 'APPS'
-
- This schema definition can also be needed when you want to export data.
- If export failed and complain that the table doesn't exists use this to
- prefix the table name by the schema name.
-
- If you want to use PostgreSQL 7.3 schema support activate the init
- option 'export_schema' set to 1. Default is no schema export
-
- To know at which indices tables can be found during extraction use the
- option:
-
- showtableid => 1
-
- To extract all views set the type option as follow:
-
- type => 'VIEW'
-
- To extract all grants set the type option as follow:
-
- type => 'GRANT'
-
- To extract all sequences set the type option as follow:
-
- type => 'SEQUENCE'
-
- To extract all triggers set the type option as follow:
-
- type => 'TRIGGER'
-
- To extract all functions set the type option as follow:
-
- type => 'FUNCTION'
-
- To extract all procedures set the type option as follow:
-
- type => 'PROCEDURE'
-
- To extract all packages and body set the type option as follow:
-
- type => 'PACKAGE'
-
- Default is table extraction
-
- type => 'TABLE'
-
- To extract all data from table extraction as INSERT statement use:
-
- type => 'DATA'
-
- To extract all data from table extraction as COPY statement use:
-
- type => 'COPY'
-
- and data_limit => n to specify the max tuples to return. If you set this
- options to 0 or nothing, no limitation are used. Additional option
- 'table', 'min' and 'max' can also be used.
-
- When use of COPY or DATA you can export data by calling method:
-
- $schema->export_data("output.sql");
-
- Data are dumped to the given filename or to STDOUT with no argument. You
- can also send these data directly to a PostgreSQL backend using the
- following method:
-
- $schema->send_to_pgdb($destdatasrc,$destuser,$destpasswd);
-
- In this case you must call export_data() without argument after the call
- to method send_to_pgdb().
-
- If you set type to COPY and you want to dump data directly to a PG
- database, you must call method send_to_pgdb but data will not be sent
- via DBD::Pg but they will be load to the database using the psql
- command. Calling this method is istill required to be able to extract
- database name, hostname and port information. Edit the $PSQL variable to
- match the path of your psql command (nothing to edit if psql is in your
- path).
-
-DESCRIPTION
- Ora2Pg is a perl OO module used to export an Oracle database schema to a
- PostgreSQL compatible schema.
-
- It simply connect to your Oracle database, extract its structure and
- generate a SQL script that you can load into your PostgreSQL database.
-
- I'm not a Oracle DBA so I don't really know something about its internal
- structure so you may find some incorrect things. Please tell me what is
- wrong and what can be better.
-
- It currently dump the database schema (tables, views, sequences,
- indexes, grants), with primary, unique and foreign keys into PostgreSQL
- syntax without editing the SQL code generated.
-
- It now can dump Oracle data into PostgreSQL DB as online process. You
- can choose what columns can be exported for each table.
-
- Functions, procedures and triggers PL/SQL code generated must be
- reviewed to match the PostgreSQL syntax. Some usefull recommandation on
- porting Oracle to PostgreSQL can be found at
- http://techdocs.postgresql.org/ under the "Converting from other
- Databases to PostgreSQL" Oracle part. I just notice one thing more is
- that the trunc() function in Oracle is the same for number or date so be
- carefull when porting to PostgreSQL to use trunc() for number and
- date_trunc() for date.
-
-ABSTRACT
- The goal of the Ora2Pg perl module is to cover all part needed to export
- an Oracle database to a PostgreSQL database without other thing that
- provide the connection parameters to the Oracle database.
-
- Features must include:
-
- - Database schema export (tables, views, sequences, indexes),
- with unique, primary and foreign key.
- - Grants/privileges export by user and group.
- - Table selection (by name and max table) export.
- - Export Oracle schema to PostgreSQL 7.3 schema.
- - Predefined functions/triggers/procedures/packages export.
- - Data export.
- - Sql query converter (todo)
-
- My knowledge regarding database is really poor especially for Oracle so
- contribution is welcome.
-
-REQUIREMENT
- You just need the DBI, DBD::Pg and DBD::Oracle perl module to be
- installed
-
-PUBLIC METHODS
- new HASH_OPTIONS
-
- Creates a new Ora2Pg object.
-
- Supported options are:
-
- - datasource : DBD datasource (required)
- - user : DBD user (optional with public access)
- - password : DBD password (optional with public access)
- - schema : Oracle internal schema to extract
- - type : Type of data to extract, can be TABLE,VIEW,GRANT,SEQUENCE,
- TRIGGER,FUNCTION,PROCEDURE,DATA,COPY,PACKAGE
- - debug : Print the current state of the parsing
- - export_schema : Export Oracle schema to PostgreSQL 7.3 schema
- - tables : Extract only the given tables (arrayref)
- - showtableid : Display only the table indice during extraction
- - min : Indice to begin extraction. Default to 0
- - max : Indice to end extraction. Default to 0 mean no limits
- - data_limit : Number max of tuples to return during data extraction (default 0 no limit)
-
- Attempt that this list should grow a little more because all
- initialization is done by this way.
-
- export_data FILENAME
-
- Print SQL data output to a filename or to STDOUT if no file is given.
-
- Must be used only if type option is set to DATA or COPY =cut
-
- sub export_data { my ($self, $outfile) = @_;
-
- $self->_get_sql_data($outfile);
- }
-
- export_sql FILENAME
-
- Print SQL conversion output to a filename or simply return these data if
- no file is given.
-
- send_to_pgdb DEST_DATASRC DEST_USER DEST_PASSWD
-
- Open a DB handle to a PostgreSQL database
-
- modify_struct TABLE_NAME ARRAYOF_FIELDNAME
-
- Modify a table structure during export. Only given fieldname will be
- exported.
-
-PRIVATE METHODS
- _init HASH_OPTIONS
-
- Initialize a Ora2Pg object instance with a connexion to the Oracle
- database.
-
- _grants
-
- This function is used to retrieve all privilege information.
-
- It extract all Oracle's ROLES to convert them as Postgres groups and
- search all users associated to these roles.
-
- Set the main hash $self->{groups}. Set the main hash $self->{grantss}.
-
- _sequences
-
- This function is used to retrieve all sequences information.
-
- Set the main hash $self->{sequences}.
-
- _triggers
-
- This function is used to retrieve all triggers information.
-
- Set the main hash $self->{triggers}.
-
- _functions
-
- This function is used to retrieve all functions information.
-
- Set the main hash $self->{functions}.
-
- _packages
-
- This function is used to retrieve all packages information.
-
- Set the main hash $self->{packages}.
-
- _tables
-
- This function is used to retrieve all table information.
-
- Set the main hash of the database structure $self->{tables}. Keys are
- the names of all tables retrieved from the current database. Each table
- information compose an array associated to the table_info key as array
- reference. In other way:
-
- $self->{tables}{$class_name}{table_info} = [(OWNER,TYPE)];
-
- DBI TYPE can be TABLE, VIEW, SYSTEM TABLE, GLOBAL TEMPORARY, LOCAL
- TEMPORARY, ALIAS, SYNONYM or a data source specific type identifier.
- This only extract TABLE type.
-
- It also get the following informations in the DBI object to affect the
- main hash of the database structure :
-
- $self->{tables}{$class_name}{field_name} = $sth->{NAME};
- $self->{tables}{$class_name}{field_type} = $sth->{TYPE};
-
- It also call these other private subroutine to affect the main hash of
- the database structure :
-
- @{$self->{tables}{$class_name}{column_info}} = $self->_column_info($class_name, $owner);
- @{$self->{tables}{$class_name}{primary_key}} = $self->_primary_key($class_name, $owner);
- @{$self->{tables}{$class_name}{unique_key}} = $self->_unique_key($class_name, $owner);
- @{$self->{tables}{$class_name}{foreign_key}} = $self->_foreign_key($class_name, $owner);
-
- _views
-
- This function is used to retrieve all views information.
-
- Set the main hash of the views definition $self->{views}. Keys are the
- names of all views retrieved from the current database values are the
- text definition of the views.
-
- It then set the main hash as follow:
-
- # Definition of the view
- $self->{views}{$table}{text} = $view_infos{$table};
-
- _get_sql_data
-
- Returns a string containing the entire SQL Schema definition compatible
- with PostgreSQL
-
- _get_data TABLE
-
- This function implements a Oracle-native data extraction.
-
- Return a list of array reference containing the data
-
- _sql_type INTERNAL_TYPE LENGTH PRECISION SCALE
-
- This function return the PostgreSQL datatype corresponding to the Oracle
- internal type.
-
- _column_info TABLE OWNER
-
- This function implements a Oracle-native column information.
-
- Return a list of array reference containing the following informations
- for each column the given a table
-
- [( column name, column type, column length, nullable column, default
- value )]
-
- _primary_key TABLE OWNER
-
- This function implements a Oracle-native primary key column information.
-
- Return a list of all column name defined as primary key for the given
- table.
-
- _unique_key TABLE OWNER
-
- This function implements a Oracle-native unique key column information.
-
- Return a list of all column name defined as unique key for the given
- table.
-
- _foreign_key TABLE OWNER
-
- This function implements a Oracle-native foreign key reference
- information.
-
- Return a list of hash of hash of array reference. Ouuf! Nothing very
- difficult. The first hash is composed of all foreign key name. The
- second hash just have two key known as 'local' and remote' corresponding
- to the local table where the foreign key is defined and the remote table
- where the key refer.
-
- The foreign key name is composed as follow:
-
- 'local_table_name->remote_table_name'
-
- Foreign key data consist in two array representing at the same indice
- the local field and the remote field where the first one refer to the
- second. Just like this:
-
- @{$link{$fkey_name}{local}} = @local_columns;
- @{$link{$fkey_name}{remote}} = @remote_columns;
-
- _get_users
-
- This function implements a Oracle-native users information.
-
- Return a hash of all users as an array.
-
- _get_roles
-
- This function implements a Oracle-native roles information.
-
- Return a hash of all groups (roles) as an array of associated users.
-
- _get_all_grants
-
- This function implements a Oracle-native user privilege information.
-
- Return a hash of all tables grants as an array of associated users.
-
- _get_indexes TABLE OWNER
-
- This function implements a Oracle-native indexes information.
-
- Return hash of array containing all unique index and a hash of array of
- all indexes name which are not primary keys for the given table.
-
- _get_sequences
-
- This function implements a Oracle-native sequences information.
-
- Return a hash of array of sequence name with MIN_VALUE, MAX_VALUE,
- INCREMENT and LAST_NUMBER for the given table.
-
- _get_views
-
- This function implements a Oracle-native views information.
-
- Return a hash of view name with the SQL query it is based on.
-
- _alias_info
-
- This function implements a Oracle-native column information.
-
- Return a list of array reference containing the following informations
- for each alias of the given view
-
- [( column name, column id )]
-
- _get_triggers
-
- This function implements a Oracle-native triggers information.
-
- Return an array of refarray of all triggers informations
-
- _get_functions
-
- This function implements a Oracle-native functions information.
-
- Return a hash of all function name with their PLSQL code
-
- _get_packages
-
- This function implements a Oracle-native packages information.
-
- Return a hash of all function name with their PLSQL code
-
- _table_info
-
- This function retrieve all Oracle-native tables information.
-
- Return a handle to a DB query statement
-
-AUTHOR
- Gilles Darold
-
-COPYRIGHT
- Copyright (c) 2001 Gilles Darold - All rights reserved.
-
- This program is free software; you can redistribute it and/or modify it
- under the same terms as Perl itself.
-
-BUGS
- This perl module is in the same state as my knowledge regarding
- database, it can move and not be compatible with older version so I will
- do my best to give you official support for Ora2Pg. Your volontee to
- help construct it and your contribution are welcome.
-
-SEE ALSO
- the DBI manpage, the DBD::Oracle manpage, the DBD::Pg manpage
-
-ACKNOWLEDGEMENTS
- Thanks to Jason Servetar who decided me to implement data extraction.
-
projects / postgresql.git / commitdiff