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Seemingly simple EJB-QL question

 
Greg Charles
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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.
 
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