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 Verify Results before Executing		  New Topic  Reply to Topic
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hissein
Starting Member

Malaysia
5 Posts
Posted - 08/07/2012 :  23:23:27  Show Profile  Reply with Quote
Hi guys,

Is there a way i can veryfiy the number of affected raws by a query (update or Delete) before executing?

jackv
Flowing Fount of Yak Knowledge

United Kingdom
1770 Posts
Posted - 08/08/2012 :  01:52:01  Show Profile  Visit jackv's Homepage  Reply with Quote
You can do this by running a SELECT statement over the exepected recordset.
So, you could execute a SELECT , run some rules over the recordset - and then DELETE | UPDATE once confirmed

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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SwePeso
Patron Saint of Lost Yaks

Sweden
29138 Posts
Posted - 08/08/2012 :  03:02:08  Show Profile  Visit SwePeso's Homepage  Reply with Quote
You can use the Estimated Execution Plan to get a rough estimate.

N 56°04'39.26"
E 12°55'05.63"
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Srinika
Flowing Fount of Yak Knowledge

Sri Lanka
1378 Posts
Posted - 08/08/2012 :  16:42:01  Show Profile  Reply with Quote
Or u can do

BEGIN TRANSACTION;
GO
-- ur query
GO

-- Then select either of the following
COMMIT TRANSACTION;
GO

rollback TRANSACTION;

Srinika
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