Out parameter

Question

Hi All,
I am using oracle 11.2.0.4
I m using this for learning purpose
I have a schema which contains  Oracle scott schema tables with its data(eg emp)
CREATE OR REPLACE PROCEDURE EMP_LOOKUP(P_EMPNO IN NUMBER,
                                       O_ENAME OUT EMP.ENAME%TYPE,
                                       O_SAL OUT EMP.SAL%TYPE)
     AS
     BEGIN
       SELECT ENAME,SAL
       INTO O_ENAME,O_SAL
       FROM EMP
       WHERE EMPNO = P_EMPNO;
       EXCEPTION
         WHEN NO_DATE_FOUND
           THEN
             O_ENAME := 'NULL';
             O_SAL := -1;
             END;
When i am trying to execute the procedure, I am getting the below error
SQL> VARIABLE NAME VARCHAR2(10);
SQL> VARIABLE SAL NUMBER;
SQL> EXEC EMP_LOOKUP(7782,:NAME,:SAL);
begin EMP_LOOKUP(7782,:NAME,:SAL); end;
ORA-06550: line 2, column 7:
PLS-00905: object PLSQL1.EMP_LOOKUP is invalid
ORA-06550: line 2, column 7:
PL/SQL: Statement ignored
NAME
SAL
But when I remove the exception block, then the procedure is running
    CREATE OR REPLACE PROCEDURE EMP_LOOKUP(P_EMPNO IN NUMBER,
                                       O_ENAME OUT EMP.ENAME%TYPE,
                                       O_SAL OUT EMP.SAL%TYPE)
     AS
     BEGIN
       SELECT ENAME,SAL
       INTO O_ENAME,O_SAL
       FROM EMP
       WHERE EMPNO = P_EMPNO;
             END;
SQL> EXEC EMP_LOOKUP(7782,:NAME,:SAL);
PL/SQL procedure successfully completed
NAME
CLARK
SAL
2450
What is the problem here,I am not able to understand.
Please help me undersatnd
Thanks and Regrds,
Subho

Answer 1

ORA-24344: success with compilation error
Compilation failed,line 11 (06:41:17)
PLS-00201: identifier 'NO_DATE_FOUND' must be declaredCompilation failed,line 0 (06:41:17)
PL/SQL: Compilation unit analysis terminated
create or replace PROCEDURE EMP_LOOKUP(P_EMPNO IN NUMBER,
                                       O_ENAME OUT EMP.ENAME%TYPE,
                                       O_SAL OUT EMP.SAL%TYPE)
     AS
     BEGIN
       SELECT ENAME,SAL
       INTO O_ENAME,O_SAL
       FROM EMP
       WHERE EMPNO = P_EMPNO;
       EXCEPTION
         WHEN NO_DATA_FOUND
           THEN
             O_ENAME := 'NULL';
             O_SAL := -1;
             END;
PL/SQL code successfully compiled (06:42:28)
declare
  NAME EMP.ENAME%TYPE;
  SAL  EMP.SAL%TYPE;
begin
  EMP_LOOKUP(7782,NAME,SAL);
  dbms_output.put_line(NAME || ' ' || to_char(SAL));
end;
CLARK 2450
Statement processed.
declare
  NAME EMP.ENAME%TYPE;
  SAL  EMP.SAL%TYPE;
begin
  EMP_LOOKUP(1234,NAME,SAL);
  dbms_output.put_line(NAME || ' ' || to_char(SAL));
end;
NULL -1
Statement processed.
Regards
Etbin