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infectedrhythms
 Post subject: Checking for duplicate keys.
PostPosted: Tue Mar 01, 2005 3:26 pm 
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Joined: Fri Dec 10, 2004 11:46 pm
Posts: 37
Hi am using Hibernate 2.1.x but I take it this is a genarl question...

Whats the best way to detect duplicate entries in a database?

Bassically I have a user table... And I would like to insert the user only if he doesnt exist...

The 2 options I see are...

1- Save, which will cause an insert and if it's a duplicate entry catch the exception...

2- Run a select if no data returned, save...

Any other ideas?

Thanks
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