emp table lookup : Utility Procedure « Stored Procedure Function « Oracle PL / SQL





emp table lookup

 
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 Employee Name JOB              MGR HIREDATE      Salary       COMM     DEPTNO
---------- ------------- --------- ---------- --------- ---------- ---------- ----------
      7369 SMITH         CLERK           7902 17-DEC-80        800                    20
      7499 ALLEN         SALESMAN        7698 20-FEB-81       1600        300         30
      7521 WARD          SALESMAN        7698 22-FEB-81       1250        500         30
      7566 JONES         MANAGER         7839 02-APR-81       2975                    20
      7654 MARTIN        SALESMAN        7698 28-SEP-81       1250       1400         30
      7698 BLAKE         MANAGER         7839 01-MAY-81       2850                    30
      7782 CLARK         MANAGER         7839 09-JUN-81       2450                    10
      7788 SCOTT         ANALYST         7566 09-DEC-82       3000                    20
      7839 KING          PRESIDENT            17-NOV-81       5000                    10
      7844 TURNER        SALESMAN        7698 08-SEP-81       1500          0         30
      7876 ADAMS         CLERK           7788 12-JAN-83       1100                    20

     EMPNO Employee Name JOB              MGR HIREDATE      Salary       COMM     DEPTNO
---------- ------------- --------- ---------- --------- ---------- ---------- ----------
      7900 JAMES         CLERK           7698 03-DEC-81        950                    30
      7902 FORD          ANALYST         7566 03-DEC-81       3000                    20
      7934 MILLER        CLERK           7782 23-JAN-82       1300                    10

14 rows selected.

SQL>
SQL>
SQL> create or replace procedure emp_lookup(
  2    p_empno in     number,
  3    o_ename    out emp.ename%type,
  4    o_sal      out emp.sal%type ) as
  5  begin
  6    select ename, sal
  7      into o_ename, o_sal
  8      from emp
  9        where empno = p_empno;
 10  exception
 11    when NO_DATA_FOUND then
 12      o_ename := 'NULL';
 13      o_sal := -1;
 14    end emp_lookup;
 15  /

Procedure created.

SQL>
SQL>  variable name varchar2(10);
SQL>  variable sal number;
SQL>
SQL>  exec emp_lookup( '7782', :name, :sal );

PL/SQL procedure successfully completed.

SQL>
SQL>  print name

NAME
--------------------------------
CLARK

SQL>
SQL>  print sal

    Salary
----------
      2450

SQL>
SQL>  select :name, :sal from dual;

:NAME                                  :SAL
-------------------------------- ----------
CLARK                                  2450

SQL>
SQL>
SQL> drop table emp;

Table dropped.

SQL>

 










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