BOOLEAN Expressions

You can now use boolean value expressions within SQL expressions wherever an expression appears in SQL syntax.

boolean_expression::=

Description of the illustration boolean_expression.gif

condition::=

Description of the illustration condition.gif

boolean_test_condition::=

Description of the illustration boolean_test_condition.gif

Use boolean_expression to evalute the input and return one of the following boolean values :

• IS TRUE

• IS NOT TRUE

• IS FALSE

• IS NOT FALSE

• IS NULL

• IS NOT NULL

See Also: About SQL Expressions