Insert statement with where clause.

Posted by debraj on Stack Overflow See other posts from Stack Overflow or by debraj
Published on 2010-03-29T02:31:36Z Indexed on 2010/03/29 2:33 UTC
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I had a table with unique Date_t1 date type field, but in Table description field is not mentioned as unique, now while inserting new row i need to validate if date exist or not, If already exist i should not allow to make changes on that row, neither a new row needs to be created, Any idea how to resolve this problem in efficient way,

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