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mike123
Master Smack Fu Yak Hacker
1462 Posts |
 Posted - 2002-04-04 : 21:06:33
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| I have 2 tables. tblInstantMessage and tblUserDetailsI am in the process of normalizing the database, I would like to delete all the userID's in tblInstantMessage that do not appear in the UserID of tblUserDetails.Is there a way to do this?ThanksMIke |
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robvolk
Most Valuable Yak
15732 Posts |
Posted - 2002-04-04 : 21:08:39
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| DELETE FROM IMFROM tblInstantMessage IM LEFT JOIN tblUserDetails UON IM.UserID=U.UserIDWHERE U.UserID Is Null |
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deleting values based on another column