|Oracle9i SQL Reference
Release 1 (9.0.1)
Part Number A90125-01
Conditions, 10 of 11
OF type condition to test object instances based on their specific type information.
You must have
EXECUTE privilege on all types referenced by
type, and all
types must belong to the same type family.
This condition evaluates to
expr is null. If
expr is not null, the condition evaluates to
FALSE if you specify the
NOT keyword) under either of these circumstances: