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SQL Optimizer for DB2 ZOS 5.5.1 - User Guide

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Return the union of two sorted ROWID lists.

Output includes any ROWID that is present in at least one ROWID list. The output removes duplicate ROWIDs.



Use an index to retrieve the rows.



Merge multiply data streams into a single data stream.



Denotes the MERGE statement.

This node merges the conditional UPDATE and INSERT operation on a target table or view into one statement.


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