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Check if PK value is in table
Message
De
08/12/2005 17:08:19
Keith Payne
Technical Marketing Solutions
Floride, États-Unis
 
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Stored procedures, Triggers, UDFs
Versions des environnements
SQL Server:
SQL Server 2000
Divers
Thread ID:
01076415
Message ID:
01076418
Vues:
25
This message has been marked as a message which has helped to the initial question of the thread.
>Is this (see code snippet below) the most efficient way to check if there is a row in the table with a given PK value?
>
>
>IF ( SELECT COUNT(*) FROM MyTable WHERE PkId = @PkId ) < 1
>BEGIN
>	RAISERROR('The record you are looking for aint there.',16,1)
>END
>
>
>Einar
IF NOT EXISTS(SELECT [PK] FROM [MyTable] WHERE [PK] = @PK) ...
If this query is used a lot, there should be a nonclustered index on PK.
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