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Delete QUery Help Needed for items in multiple tables

Posted on 2011-02-26
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Last Modified: 2012-05-11
Guidence needed on delete query.  I want to delete all items in table 1 that are in table 2.  
select * from table 1
table1 join on table2 table1.c#=table2.C# works. when I add delete * instead of the select it grumbles...

 
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Question by:kat50
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3 Comments
 
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by:Carl Tawn
ID: 34988842
You don't need the * for delete, as you can't delete specific columns you can only delete the whole row.
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Ephraim Wangoya earned 500 total points
ID: 34988844
delete
from table1
where table1.c# in (select c# from table2)
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LVL 52

Expert Comment

by:Carl Tawn
ID: 34988854
Even though you obviously completely ignored my comment, just thought i'd point out that using IN is a lot slower than using JOIN syntax.
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