Oracle Error ORA-01719: outer join operator (+) not allowed in operand of OR or IN

Oracle Error Message

ORA-01719: outer join operator (+) not allowed in operand of OR or IN

Reason for the Error

An outer join appears in an or clause.

Solution

If A and B are predicates, to get the effect of (A(+) or B), try (select where (A(+) and not B)) union all (select where (B)).