Oracle Error ORA-04096: trigger ‘string’ has a WHEN clause which is too large, limit 2K

Oracle Error Message

ORA-04096: trigger ‘string’ has a WHEN clause which is too large, limit 2K

Reason for the Error

A trigger’s ‘when’ clause is limited to 2K for dictionary storage reasons. The trigger being created exceeded that size.

Solution

Use a smaller ‘when’ clause. Note, the trigger body could be used to perform the same limiting action as the ‘when’ clause.