WebSphere Application Server Network Deployment, Version 6.1
             Operating Systems: AIX, HP-UX, i5/OS, Linux, Solaris, Windows, z/OS

             Personalize the table of contents and search results

NULL predicate

The NULL predicate tests for null values.

Use the syntax:
single-valued-path-expression IS [NOT] NULL

Example: NULL predicate

e.name IS NULL
e.dept.name IS NOT NULL
e.dept IS NOT NULL



Related concepts
EJB query language
WHERE clause
Related tasks
Using EJB query
Concept topic    

Terms of Use | Feedback

Last updated: Feb 25, 2009 9:32:38 AM CST
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=/com.ibm.websphere.nd.multiplatform.doc/info/ae/ae/cque_null.html