Code: ORA-06502
Description:
 PL/SQL: numeric or value errorstring
Cause:
 An arithmetic, numeric, string, conversion, or constraint error occurred. For
example, this error occurs if an attempt is made to assign the value NULL to a
variable declared NOT NULL, or if an attempt is made to assign an integer larger
than 99 to a variable declared NUMBER(2).
Action:
 An arithmetic, numeric, string, conversion, or constraint error occurred. For
example, this error occurs if an attempt is made to assign the value NULL to a
variable declared NOT NULL, or if an attempt is made to assign an integer larger
than 99 to a variable declared NUMBER(2).