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Archives of the TeradataForum
Message Posted: Wed, 13 Nov 2002 @ 18:13:41 GMT
Subj: | | Re: ETL approach |
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From: | | Anomy Anom |
<-- Anonymously Posted: Wednesday, November 13, 2002 13:07 -->
The main reason in my view as to why the 4-step process is preferable to the Insert-select is that - If the Insert-select abends in the
inserting stage, it starts a expensive rollback consuming a lot of machine resources and also locks up the table being inserted into.
Clearly this is not acceptable with the increasing expectation of DW being up 24 x 7.
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