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    

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Last updated: Aug 29, 2010 8:25:23 PM CDT
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