Comma separated values for input and return multiple values

Question

Hello everyone,
I have this simple package. Can someone suggest a way to accept multiple empno as input (comma separated) and to return set of salary values for the set of employee numbers (compatible to work with lower Oracle versions). Thanks much!
CREATE OR REPLACE PACKAGE test_multi IS
FUNCTION GET_sal(P_empno IN emp.empno%TYPE) RETURN NUMBER;
END test_multi;
CREATE OR REPLACE PACKAGE BODY test_multi IS
FUNCTION GET_sal(P_empno IN emp.empno%TYPE) RETURN NUMBER IS
V_sal NUMBER(10,2);
MSG VARCHAR2(200);
BEGIN
SELECT sal
INTO V_sal
FROM emp
WHERE empno = p_empno;
RETURN V_sal;
EXCEPTION
WHEN NO_DATA_FOUND THEN
DBMS_OUTPUT.PUT_LINE('No data found.');
IF (V_sal IS NULL OR V_sal = 0) THEN
V_sal := 0;
END IF;
RETURN V_sal;
WHEN OTHERS THEN
MSG := SUBSTR(SQLERRM, 1, 70);
DBMS_OUTPUT.PUT_LINE(MSG);
END GET_sal;
END test_multi; -- End package

Answer 1

A way to do this in 10g or above...
SQL> ed
Wrote file afiedt.buf
  1  with e as (select '7499,7698,7654,7902' as enos from dual)
  2  --
  3  select empno, sal
  4  from emp
  5  where empno in (select regexp_substr(enos,'[^,]+',1,rownum)
  6                  from   e
  7*                 connect by rownum <= length(regexp_replace(enos,'[^,]'))+1)
SQL> /
     EMPNO        SAL
      7902       3000
      7698       2850
      7654       1250
      7499       1600
SQL>As for Oracle 8, .... well.... like Oracle, I no longer use unsupported versions, so I'd recommend you upgrade to something that is supported.