PLS_INTEGER variable
SQL> SQL> DECLARE 2 v_PLSInt PLS_INTEGER; 3 BEGIN 4 v_PLSInt := 2147483647; 5 6 v_PLSInt := v_PLSInt + 1 - 1; 7 END; 8 / DECLARE * ERROR at line 1: ORA-01426: numeric overflow ORA-06512: at line 6 SQL>