RowReplicate is used during the execution of set operations such as EXCEPT ALL and INTERSECT ALL. It is a feature of such operations that the number of rows in the result set is explicitly related to the number of rows in the two sets being operated on. RowReplicate ensures that the number of rows in the result set is correct. See Performing set operations on query results with UNION, INTERSECT, and EXCEPT.
Discuter à propos de cette page dans DocCommentXchange.
|Copyright © 2010, iAnywhere Solutions, Inc. - SQL Anywhere 12.0.0|