How do I add a record only if it doesn't already exist in SQL Server?

Posted by menacheb on Stack Overflow See other posts from Stack Overflow or by menacheb
Published on 2010-04-28T14:11:09Z Indexed on 2010/04/28 14:23 UTC
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sql-server

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c#

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query

Hi,
I have a project in C# with a Sql-server Database.
In that database I have a table named 'Process' and columns named 'process_name', 'Full_Name' and 'Version' (all of the type:nvarchar(50)).
I want to write a query wich will add the new process, only if it doesn't exist in the table yet.
How can I do that?
Many thanks,

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