ORA-29256：Cursor contains both regular and array defines which is illegal

错误原因：Both define_array and define_column have been called on this cursor. This is illegal. It is not possible for a cursor to both contain regular and array defines. The semantics of this setting are nonsensical. Array defines are used to move data from select queries into PL/SQL tables and regular defines to move data from select queries into PL/SQL variables.