How to write proc() with the following requirement

Question

Hi..
I've written the following procedure
  PROCEDURE createMoney (
    pcsId      IN  NUMBER,
    spsId      IN  NUMBER,
    spgId      IN  NUMBER,
    apsId      IN  NUMBER,
    apgId      IN  NUMBER,
    charge     IN  NUMBER,
    pdtId     OUT  NUMBER
  IS
   pcsDetId NUMBER:=1;
  BEGIN
    INSERT INTO T_PDT (PDT_ID,PRS_ID,SPS_ID,SPG_ID,APG_ID,
                   APS_ID,DK_CED,CHG)
       VALUES(pcsDetId,pcsId, spsId,spgId,apgId,
                   apsId,charge);
    pdtId := pcsDetId;
  END;Then got the requirement that
*'createMoney' is creating new price.
Change it to get a procedure like 'setMoney' that would insert if not exists, or update if exists? *
Could you help me in doing this so..
Thanks

Answer 1

Hi,
Example with DUAL
SQL> select * from dept;
    DEPTNO DNAME          LOC          
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
SQL> merge into dept d1
  2  using (select 50 as deptno from dual) d2
  3  on (d1.deptno=d2.deptno)
  4  WHEN MATCHED THEN
  5      UPDATE SET d1.loc = 'Mumbai'
  6    WHEN NOT MATCHED THEN
  7      INSERT
  8      VALUES (50,'sw','Mumbai');
1 row merged.
SQL> select * from dept;
    DEPTNO DNAME          LOC              
        50 sw             Mumbai                
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
SQL> merge into dept d1
  2  using (select 50 as deptno from dual) d2
  3  on (d1.deptno=d2.deptno)
  4  WHEN MATCHED THEN
  5      UPDATE SET d1.loc = 'London'
  6    WHEN NOT MATCHED THEN
  7      INSERT
  8      VALUES (50,'sw','Mumbai');
1 row merged.
SQL> select * from dept;
    DEPTNO DNAME          LOC              
        50 sw             London                
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
SQL> Twinkle