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seen Sep 23 '13 at 14:10

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comment How to make a trigger that will compare input with a value of other table?
thank you men, this is the most complete answer that I ever had received, thank you a lot!!!
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accepted How to make a trigger that will compare input with a value of other table?
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comment How to make a trigger that will compare input with a value of other table?
I have added the constraints witch I have needed at single table level. Now I'm gonna try your suggestion, thanks
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comment How to make a trigger that will compare input with a value of other table?
yes, InnoDB is the engine. I insert by fixed SQL queries and manual. no procedures yet.
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asked How to make a trigger that will compare input with a value of other table?