Coverting to ORACLE

Question

Hi,
The below code is in sql server
Can some one plzzzzz....help me do the same in ORACLE
BEGIN
IF @str_UG_Flag = 'I'
BEGIN
IF NOT EXISTS (SELECT 'X' FROM EMA_SCM_GEN_UOM_Group WHERE EMA_SCM_GEN_UG_Code = @int_UG_CODE)
BEGIN
INSERT INTO EMA_SCM_GEN_UOM_Group
(EMA_SCM_GEN_UG_Code, EMA_SCM_GEN_UG_Desc, EMA_SCM_GEN_UG_Inserted_By, EMA_SCM_GEN_UG_Updated_By)
VALUES
(@int_UG_CODE, @str_UG_Desc, @int_UID, @int_UID)
END
ELSE
BEGIN
UPDATE EMA_SCM_GEN_UOM_Group SET
EMA_SCM_GEN_UG_Desc = @str_UG_Desc,
EMA_SCM_GEN_UG_Updated_By = @int_UID,
EMA_SCM_GEN_UG_Updated_On = GETDATE()
WHERE EMA_SCM_GEN_UG_Code = @int_UG_CODE
END
END
ELSE IF @str_UG_Flag = 'D'
BEGIN
IF EXISTS (SELECT 'X' FROM EMA_SCM_GEN_UOM_Group WHERE EMA_SCM_GEN_UG_Code = @int_UG_CODE)
BEGIN
UPDATE EMA_SCM_GEN_UOM_Group SET
EMA_SCM_GEN_UG_ISActive = @str_UG_ISActive,
EMA_SCM_GEN_UG_Updated_By = @int_UID,
EMA_SCM_GEN_UG_Updated_On = GETDATE()
WHERE EMA_SCM_GEN_UG_Code = @int_UG_CODE
END
ELSE
BEGIN
SET @str_Error = 'UOM Group Does not exist for Changing the status'
RETURN -1
END
END
RETURN 1
END

Answer 1

when you check the existence of data in the table emptst you check for the entire table. are you not suppose to check only for the particular deptno based on the input parameter.
If that is what you are trying to achieve you can use MERGE statement. See example below.
SQL> create table emptst as select empno, ename, job, deptno from emp where deptno = 40
  2  /
Table created.
SQL> select * from emptst
  2  /
     EMPNO ENAME      JOB           DEPTNO
      7934 MILLER     CLERK             40
14 rows selected.
SQL> CREATE OR REPLACE PROCEDURE ins_upd(
  2                             int_eid         IN NUMBER,
  3                             str_ename       IN VARCHAR2,
  4                             str_job         IN VARCHAR2 DEFAULT NULL,
  5                             int_dept        IN NUMBER)
  6  AS
  7  BEGIN
  8     MERGE INTO emptst e
  9     USING (SELECT int_eid empno,
10                   str_ename ename,
11                   str_job job,
12                   int_dept deptno
13              FROM dual) t
14        ON (e.deptno = t.deptno)
15      WHEN MATCHED THEN
16             update set e.empno = t.empno, e.ename = t.ename, e.job = t.job
17      WHEN NOT MATCHED THEN
18             insert (e.empno,e.ename,e.job,e.deptno)
19             values (t.empno,t.ename,t.job,t.deptno);
20  END;
21  /
Procedure created.
SQL> EXEC INS_UPD(10,'KARTHICK','SSE',40)
PL/SQL procedure successfully completed.
SQL> SELECT * FROM EMPTST
  2  /
     EMPNO ENAME      JOB           DEPTNO
        10 KARTHICK   SSE               40
14 rows selected.
SQL> EXEC INS_UPD(10,'KARTHICK','SSE',50)
PL/SQL procedure successfully completed.
SQL> /
     EMPNO ENAME      JOB           DEPTNO
        10 KARTHICK   SSE               40
        10 KARTHICK   SSE               50
15 rows selected.Thanks,
Karthick.
Edited by: Karthick_Arp on Sep 26, 2008 12:08 AM