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Seemingly simple EJB-QL question

Greg Charles
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Joined: Oct 01, 2001
Posts: 2849
    
  11

I need to retrieve a single record matching two fields, call them jib and jab. The query is easy enough:



I know there will only be a single record, because I have a unique key constraint on jib and jab. However, jab can be null, and equality comparison doesn't work with nulls. I tried something like:


Checking parameters with "IS NULL" apparently doesn't work though, even though it works in ordinary SQL. The only solution I can think of is to write two queries and force the application to decide which one to use. I'd appreciate any suggestions!

We're using BEA WebLogic 8.1 and Oracle 9i.
 
 
subject: Seemingly simple EJB-QL question