Oracle Error PLS-01455: The predicates IS NULL and IS NOT NULL are defined only for column specifications

Oracle Error Message

PLS-01455: The predicates IS NULL and IS NOT NULL are defined only for column specifications

Reason for the Error

The predicates “IS NULL” and “IS NOT NULL” are defined only for column specifications, not for any other expressions. Section 5.15, ““, indicates that in the predicate “x IS NULL”, x must be a column, and may not be any other kind of expression.

Solution

None