How to run this procedure .......pls help with example

Question

/*it shows an warning */
--how to remove this warning
CREATE PROCEDURE EMP_TITLE_GENERATOR (EMP_GENDER IN CHAR (1),EMP_TITLE OUT VARCHAR2)
IS
BEGIN
EMP_TITLE:=DECODE(EMP_GENDER,'M','Mr','F','Ms','INVALID');
EXCEPTION
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE(SQLERRM);
END;
Edited by: 923746 on Apr 18, 2012 7:58 PM
Edited by: 923746 on Apr 18, 2012 7:59 PM

Answer 1

Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> CREATE PROCEDURE EMP_TITLE_GENERATOR (EMP_GENDER IN VARCHAR2,EMP_TITLE OUT VARCHAR2)
  2  IS
  3  begin
  4  select DECODE(EMP_GENDER,'M','Mr','F','Ms','INVALID') into emp_title from dual;
  5  EXCEPTION
  6  WHEN OTHERS THEN
  7  dbms_output.put_line(sqlerrm);
  8  END;
  9  /
Procedure created.
SQL> set serveroutput on
SQL> DECLARE
  2    EMP_GENDER VARCHAR2(200);
  3    EMP_TITLE VARCHAR2(200);
  4  BEGIN
  5    EMP_GENDER := 'F';
  6 
  7    EMP_TITLE_GENERATOR(
  8      EMP_GENDER => EMP_GENDER,
  9      EMP_TITLE => EMP_TITLE
10    );
11    DBMS_OUTPUT.PUT_LINE('EMP_TITLE = ' || EMP_GENDER);
12    DBMS_OUTPUT.PUT_LINE('EMP_TITLE = ' || EMP_TITLE);
13  END;
14  /
EMP_TITLE = F
EMP_TITLE = Ms
PL/SQL procedure successfully completed.
SQL>