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Utility proc for updating (sub) sequence columns

By John, 2013/05/21

This is a utility proc that I use a lot for datawarehouse transformation/load processing.

This is a generic proc for resequencing an integer column in sorted order within a given key combination.

Note that 'key' is used here in a general context and not specific, that is there doesn't have to be any keys or indexes on the columns. However, The lowest level key in the column combination must be unique at that level.

Up to four part keys can be specified (or modify this script to allow more).

SEE sample/test script in bottom comment of create proc.

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