I have to update a transaction table where mapping is existing with old account no and new account number.
etc I have a mapping table where "ALL" old account number and new account numbers are present.
For small numbers of rows requiring updates, it can be adequate to use an UPDATE statement for each row that requires an update.
But in many cases this only provides a modest improvement as each UPDATE operation still requires a round-trip communication with the database server.
WORKEXTENSION from TBL_VOTERS old, VOTERSWITHNUMBERS new where old.
I need to update a field in multiple rows with a bit of strinhg manipulation.
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