Multiple-Row SELECT Command with Several Exception-Handling Routines

     
SQL>
SQL>
SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
  2                    ENAME VARCHAR2(10),
  3                    JOB VARCHAR2(9),
  4                    MGR NUMBER(4),
  5                    HIREDATE DATE,
  6                    SAL NUMBER(7, 2),
  7                    COMM NUMBER(7, 2),
  8                    DEPTNO NUMBER(2));

Table created.

SQL>
SQL> INSERT INTO EMP VALUES (7369, 'SMITH', 'CLERK',    7902, TO_DATE('17-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7499, 'ALLEN', 'SALESMAN', 7698, TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7521, 'WARD',  'SALESMAN', 7698, TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7566, 'JONES', 'MANAGER',  7839, TO_DATE('2-APR-1981',  'DD-MON-YYYY'), 2975, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7654, 'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES (7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7839, 'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES (7844, 'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7876, 'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7900, 'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7902, 'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7934, 'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10);

1 row created.

SQL>
SQL> select * from emp;

     EMPNO ENAME      JOB              MGR
---------- ---------- --------- ----------
HIREDATE                    SAL       COMM
-------------------- ---------- ----------
    DEPTNO
----------
      7369 SMITH      CLERK           7902
17-DEC-1980 00:00:00        800
        20

      7499 ALLEN      SALESMAN        7698
20-FEB-1981 00:00:00       1600        300
        30

      7521 WARD       SALESMAN        7698
22-FEB-1981 00:00:00       1250        500
        30

      7566 JONES      MANAGER         7839
02-APR-1981 00:00:00       2975
        20

      7654 MARTIN     SALESMAN        7698
28-SEP-1981 00:00:00       1250       1400
        30

      7698 BLAKE      MANAGER         7839
01-MAY-1981 00:00:00       2850
        30

      7782 CLARK      MANAGER         7839
09-JUN-1981 00:00:00       2450
        10

      7788 SCOTT      ANALYST         7566
09-DEC-1982 00:00:00       3000
        20

      7839 KING       PRESIDENT
17-NOV-1981 00:00:00       5000
        10

      7844 TURNER     SALESMAN        7698
08-SEP-1981 00:00:00       1500          0
        30

      7876 ADAMS      CLERK           7788
12-JAN-1983 00:00:00       1100
        20

      7900 JAMES      CLERK           7698
03-DEC-1981 00:00:00        950
        30

      7902 FORD       ANALYST         7566
03-DEC-1981 00:00:00       3000
        20

      7934 MILLER     CLERK           7782
23-JAN-1982 00:00:00       1300
        10


14 rows selected.

SQL>
SQL> DECLARE
  2      v_emp_id      INTEGER;
  3  BEGIN
  4  SELECT  empno into v_emp_id from emp WHERE ename = 'MILLER';
  5  exception
  6      when no_data_found THEN v_emp_id := 888;
  7      when too_many_rows THEN v_emp_id := 999;
  8  END;
  9  /

PL/SQL procedure successfully completed.

SQL> drop table emp;

Table dropped.

SQL>
SQL>
SQL> --

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Multiple-Row SELECT Command with Several Exception-Handling Routines : Select Into « PL SQL « Oracle PL / SQL

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