SQL Replace Into question

Posted by Matt on Stack Overflow See other posts from Stack Overflow or by Matt
Published on 2010-04-30T09:12:50Z Indexed on 2010/04/30 9:17 UTC
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replace

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mysql

With Replace Into, if I have two fields. FirstName LastName. The table has John Smith in it, if I was to run REPLACE INTO tblNames (FirstName, LastName) VALUES (John, Jones) Would that replace Smith with Jones, or create a new name?

What determines if its an Update or and Insert?

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