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You should first learn HISTORY and then T_SQL.
There is no Macedonian language. There is Greek language !!!
April 21, 2005 at 1:56 am
#554003
The "correct answer" of course improves performance but raises many problems :
1. uniqueness of customer_id is lost
2. last_order_dt should not be unique
3. the clustered index would be updated on...
November 21, 2003 at 3:27 am
#483029