How to check user id already exists

Posted by Sheery on Stack Overflow See other posts from Stack Overflow or by Sheery
Published on 2010-05-22T06:19:17Z Indexed on 2010/05/22 6:20 UTC
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c#

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ASP.NET

Hi Friends, I am a beginner coder, i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?

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