The subquery comparison test (=, <>, <. <=, >, >=) is a modified version of the simple comparison test. The only difference between the two is that in the former, the expression following the operator is a subquery. This test is used to compare a value from a row in the main query to a single value produced by the subquery.
Discuter à propos de cette page dans DocCommentXchange.
|Copyright © 2010, iAnywhere Solutions, Inc. - SQL Anywhere 12.0.0|