- href="#item4.11.1">4.11.1 ¤Î¥Æ¡¼¥Ö¥ë¤ÎÎã¤ò»È¤¦¤È¤¹¤ë¤È¡¢µ¿»÷¸À¸ì¤Ç¤Ï
- ¤³¤Î¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£
-
- new_id = execute("SELECT nextval('person_id_seq')");
- execute("INSERT INTO person (id, name) VALUES (new_id, 'Blaise Pascal')");
-
-
- ¤½¤¦¤·¤Æ¡¢new_id ¤ËÊݸ¤·¤¿¿·¤·¤¤Ãͤò¾¤Î¥¯¥¨¥ê(¤¿¤È¤¨¤Ð¡¢
- person ¥Æ¡¼¥Ö¥ë¤ËÂФ¹¤ë³°Éô¥¡¼(foreign key)¤Î¤è¤¦¤Ë)»È¤¦¤È
- ¤è¤¤¤Ç¤·¤ç¤¦¡£¼«Æ°Åª¤Ëºî¤é¤ì¤¿SEQUENCE¥ª¥Ö¥¸¥§¥¯¥È¤Î
- ̾Á°¤Ï¡¢<table>_<serialcolumn>_seq
- ¤Î¤è¤¦¤Ë¤Ê¤ê¡¢¤³¤Î¤¦¤Á¡¢table ¤È serialcolumn ¤Ï¤½¤ì¤¾
- ¤ì¥Æ¡¼¥Ö¥ë¤Î̾Á°¤ÈSERIAL¥«¥é¥à¤Î̾Á°¤Ç¤¹¡£
-
-
¤¢¤ë¤¤¤Ï¡¢Í¿¤¨¤é¤ì¤¿SERIALÃͤò¡¢¤½¤ì¤¬´ûÄêÃͤȤ·¤Æ
- ÁÞÆþ¤µ¤ì¤¿¸å¤Ç(after)¡¢ currval() ´Ø¿ô¤ò»È¤Ã¤Æ¼è¤ê½Ð¤¹
- ¤³¤È¤â¤Ç¤¤Þ¤¹¡£¤¿¤È¤¨¤Ð¡¢
+
ºÇ¤â´Êñ¤ÊÊýË¡¤Ï¡¢³ä¤êÅö¤Æ¤é¤ì¤¿SERIALÃͤò
+ RETURNING¤È¤·¤Æ¼èÆÀ¤¹¤ë¤³¤È¤Ç¤¹¡£
+
4.11.1¤ÎÎãÂê¥Æ¡¼¥Ö¥ë¤ò»È¤¦¤È¼¡¤Î¤è¤¦¤Ë
+ ¤Ê¤ê¤Þ¤¹¡£
- execute("INSERT INTO person (name) VALUES ('Blaise Pascal')");
- new_id = execute("SELECT currval('person_id_seq')");
+ INSERT INTO person (name) VALUES ('Blaise Pascal') RETURNING id;
¤ª¤½¤é¤¯¡¢¥·¥¹¥Æ¥à¤Î²¾ÁÛ¥á¥â¥ê¡¼¤òÁ´¤Æ»È¤¤²Ì¤¿¤·¤Æ¤·¤Þ¤Ã¤Æ¤¤¤ë²Ä
ǽÀ¤¬¤¢¤ë¤«¡¢¥«¡¼¥Í¥ë¤¬¤¢¤ë¥ê¥½¡¼¥¹¤Ë¤Ä¤¤¤Æ¤â¤ÄÀ©¸ÂÃͤ¬Ä㤹¤®¤ë²Äǽ
- À¤¬¤¢¤ê¤Þ¤¹¡£postmaster ¤ò»Ïư¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤¡§
+ À¤¬¤¢¤ê¤Þ¤¹¡£¥µ¡¼¥Ð¤ò»Ïư¤¹¤ëÁ°¤Ë¤³¤ì¤ò»î¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤¡§
ulimit -d 262144
¤ò»È¤¦¤È´Êñ¤Ç¤¹¡£
-
4.19) PL/PgSQL ¤Î´Ø¿ô¤ÎÃæ¤Ç°ì»þ¥Æ¡¼¥Ö¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¤È¤¡¢¤É¤¦¤·¤Æ "relation with OID ##### does not exist" ¤È¤¤¤¦¥¨¥é¡¼¤ò¼õ¤±¼è¤ë¤Î¤Ç¤·¤ç¤¦¤«¡©
-
-
PL/PgSQL ¤Ï´Ø¿ô¥¹¥¯¥ê¥×¥È¤ò¥¥ã¥Ã¥·¥å¤·¡¢ÉÔ¹¬¤Ë¤â¤½¤ÎÉûºîÍѤǡ¢
- PL/PgSQL´Ø¿ô¤¬°ì»þ¥Æ¡¼¥Ö¥ë¤Ë¥¢¥¯¥»¥¹¤¹¤ë¾ì¹ç¡¢¸å¤Ç¤½¤Î¥Æ¡¼¥Ö¥ë¤ò¾Ã¤·
- ¤Æºî¤ê¤Ê¤ª¤µ¤ì¡¢´Ø¿ô¤¬¤â¤¦°ìÅٸƤӽФµ¤ì¤ë¤È¡¢¤½¤Î´Ø¿ô¤Ï¥¥ã¥Ã¥·¥å¤·
- ¤Æ¤¤¤ë´Ø¿ô¤ÎÆâÍÆ¤Ï¤Þ¤À¸Å¤¤°ì»þ¥Æ¡¼¥Ö¥ë¤òº¹¤·¼¨¤·¤¿¤Þ¤Þ¤À¤«¤é¤Ç¤¹¡£
- ¤³¤Î¡¢²ò·èºö¤È¤·¤Æ¡¢PL/PgSQL¤ÎÃæ¤Ç EXECUTE ¤ò°ì»þ¥Æ¡¼
- ¥Ö¥ë¤Ø¤Î¥¢¥¯¥»¥¹¤Î¤¿¤á¤Ë»È¤¤¤Þ¤¹¡£¤½¤¦¤¹¤ë¤È¡¢¥¯¥¨¥ê¤ÏËè²ó¥Ñ¡¼¥¹¤ò¤ä
- ¤êľ¤·¤µ¤ì¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£
-
-
4.20) ¤É¤Î¤è¤¦¤Ê¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤Î¥½¥ê¥å¡¼¥·¥ç¥ó¤¬¤¢¤ê¤Þ¤¹¤«¡©
+
4.19) ¤É¤Î¤è¤¦¤Ê¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤Î¥½¥ê¥å¡¼¥·¥ç¥ó¤¬¤¢¤ê¤Þ¤¹¤«¡©
¡Ö¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¡×¤È°ì¸À¤Ç¤¤¤¤¤Þ¤¹¤¬¡¢¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¤ò¤¹¤ë
¤¿¤á¤Îµ»½Ñ¤Ï¤¤¤¯¤Ä¤«¤¢¤ê¡¢¤½¤ì¤¾¤ì¡¢ÍøÅÀ¤È·çÅÀ¤¬¤¢¤ê¤Þ¤¹¡£
¤³¤Î¾¤Ë¤â¡¢¾¦ÍѤä¥Ï¡¼¥É¥¦¥§¥¢¡Ý¥Ù¡¼¥¹¤Î¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¥½¥ê¥å¡¼
¥·¥ç¥ó¤¬¤¤¤í¤¤¤í¤Ê¥ì¥×¥ê¥±¡¼¥·¥ç¥ó¥â¥Ç¥ë¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Þ¤¹¡£
-
1">4.21)¥Æ¡¼¥Ö¥ë¤È¥«¥é¥à¤Î̾Á°¤¬¥¯¥¨¥ê¡¼¤ÎÃæ¤Çǧ¼±¤µ¤ì¤Ê¤¤¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©¤Ê¤¼Âçʸ»ú²½(¥¥ã¥Ô¥¿¥é¥¤¥º)¤Ï²¹Â¸¤µ¤ì¤Ê¤¤¤Î¤Ç¤¹¤«?
+
0">4.20)¥Æ¡¼¥Ö¥ë¤È¥«¥é¥à¤Î̾Á°¤¬¥¯¥¨¥ê¡¼¤ÎÃæ¤Çǧ¼±¤µ¤ì¤Ê¤¤¤Î¤Ï¤Ê¤¼¤Ç¤¹¤«¡©¤Ê¤¼Âçʸ»ú²½(¥¥ã¥Ô¥¿¥é¥¤¥º)¤Ï²¹Â¸¤µ¤ì¤Ê¤¤¤Î¤Ç¤¹¤«?
-
ǧ¼±¤µ¤ì¤¿Ì¾Á°¤Î¤â¤Ã¤È¤â°ìÈÌŪ¤Ê¸¶°ø¤Ï¡¢¥Æ¡¼¥Ö¥ë¤òºîÀ®¤¹¤ëºÝ¤Ë¡¢
+
̾Á°¤¬Ç§¼±¤µ¤ì¤Ê¤¤¡¢ºÇ¤â°ìÈÌŪ¤Ê¸¶°ø¤Ï¡¢¥Æ¡¼¥Ö¥ë¤òºîÀ®¤¹¤ëºÝ¤Ë¡¢
¥Æ¡¼¥Ö¥ë¤ä¥«¥é¥à¤ò°Ï¤¦Æó½Å°úÍÑÉä¤Î»ÈÍѤǤ¹¡£