in the tutorial, chapter 2., "Relational Data Model Formalities"

(sql490.htm), there is

"set of all k-tuples v1, v2, ... vk, such that v1 [isin] D1, v1 [isin] D1"

i assume it should be
"set of all k-tuples v1, v2, ... vk, such that v1 [isin] D1, v2 [isin] D2"

Divide by Zero

diff --git a/doc/src/sgml/sql.sgml b/doc/src/sgml/sql.sgml
index 5a2ce9ab015c935810d0ada236482af1ce3517d3..80c261fa75d74b52a5e91aae21582dc7e1909e96 100644 (file)
--- a/doc/src/sgml/sql.sgml
+++ b/doc/src/sgml/sql.sgml
@@ -1,5 +1,5 @@
 
 
  
@@ -235,8 +235,8 @@ D_{1}, v_{2} \in D_{2}, \ldots, v_{k} \in D_{k}$}.
     such that
     v1 ∈ 
     D1,
-    v1 ∈ 
-    D1,
+    v2 ∈ 
+    D2,
     ...
     vk ∈ 
     Dk.