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JavaRanch » Java Forums » Databases » JDBC
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Can we create auto key generation(sequence) for composite PK

bala kumar
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Joined: Sep 13, 2007
Posts: 10
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Can we create auto key generation(sequence) for composite PK in ejb 2 in weblogic server.

Pls any help me.
Paul Campbell
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Joined: Oct 06, 2007
Posts: 338
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a surrogate key (a key generated from a sequence is independent of any logic or rules related to the row it identifies) and is by definition unique.

a composite key is used with natural keys or to identify a row in a fact table.

what is it you are trying to make unique with a composite key?
 
I agree. Here's the link: http://zeroturnaround.com/jrebel - it saves me about five hours per week
 
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