DB2 9 & 10 for z/OS Overview

Migration Planning WorkshopIntersect & ExceptFor 2 given result sets…• Intersect – Returns the recordsthat two result sets have incommon– Frequently used in ‘find theduplicates query’– Rows from either result set thatdo not match are excluded.• Except – Returns the recordsthat are members of one resultset that are not members of theother• Requirement– Both result sets must have thesame column structure.RS1RS2IntersectRS1 RS2ExceptRS1 RS214© 2011 IBM Corporation