06502, 00000, "PL/SQL: numeric or value error%s"
// *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: Change the data, how it is manipulated, or how it is declared so
//          that values do not violate constraints.