Home » SQL & PL/SQL » SQL & PL/SQL » unique identifier.. (9i , windows 2003)
unique identifier.. [message #337173] Wed, 30 July 2008 01:45 Go to next message
arunshrish
Messages: 74
Registered: May 2008
Location: Chennai
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Hi all can any one explain me about Unique identifier and its use??

Thanks,
Arun.
Re: unique identifier.. [message #337184 is a reply to message #337173] Wed, 30 July 2008 02:08 Go to previous messageGo to next message
Littlefoot
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Registered: June 2005
Location: Croatia, Europe
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Identifiers? Or would you like to know more about (unique) constraints (found in Data Integrity chapter of the Concepts book)?
Re: unique identifier.. [message #337188 is a reply to message #337184] Wed, 30 July 2008 02:18 Go to previous message
arunshrish
Messages: 74
Registered: May 2008
Location: Chennai
Member
Hi Little foot ,thanks for reply. I just wanted to know differnce between unique constraint and a unique identifier.Actually i heard that it is somewhat similar to a constraint thats why i asked about it.
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