How to use T-SQL MERGE in this case?

Posted by abatishchev on Stack Overflow See other posts from Stack Overflow or by abatishchev
Published on 2010-06-03T16:26:29Z Indexed on 2010/06/03 16:44 UTC
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sql

|

tsql

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merge

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sql-server-2008-r2

I'm new to T-SQL command MERGE so I found a place in my SQL logic where I can use it and want to test it but can't figure out how exatcly should I use it:

IF (EXISTS (SELECT 1 FROM commissions_history WHERE request = @requestID))
    UPDATE commissions_history
    SET amount = @amount
    WHERE request = @requestID
ELSE
    INSERT INTO commissions_history (amount) VALUES @amount)

Plase suggest the proper usage. Thanks!

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