Outer joins can also be specified for views and derived tables.
SELECT * FROM V LEFT OUTER JOIN A ON (V.x = A.x);
can be interpreted as follows:
Compute the view V.
Join all the rows from the computed view V with A by preserving all the rows from V, using the join condition
V.x = A.x.
Discuter à propos de cette page dans DocCommentXchange.
|Copyright © 2010, iAnywhere Solutions, Inc. - SQL Anywhere 12.0.0|