Dynamic sort help needed

Question

I am trying to implement a dynamic sort using pl/sql procedure
with two IN params, which tell what column to sort by
and wich direction. smth. like this
procedure getEmployees (p_dept_no in employee.dept_no%type,
p_sortBy in varchar2,
p_sortDir in varchar2
p_empl_cur in out emplCur
) is
begin
OPEN p_empl_cur
FOR
SELECT EMP_ID, F_NAME, L_NAME
FROM EMPLOYEE
WHERE DEPT_NO=p_dept_no
ORDER BY p_sortBy p_sortDir ; --> this is the part that does not work
-- I make sure that the params values are correct
-- possible p_sortBy values: EMP_ID, F_NAME, L_NAME
-- and p_sortDir: 'ASC' or 'DESC'
end getEmployees;
Thank you in advance.

Answer 1

Try execute immediate.
Some thing like this:
PROCEDURE GETEMPLOYEES (P_DEPT_NO IN EMPLOYEE.DEPT_NO%TYPE,
P_SORTBY IN VARCHAR2,
P_SORTDIR IN VARCHAR2
P_EMPL_CUR IN OUT EMPLCUR
) IS
BEGIN
OPEN P_EMPL_CUR
FOR
SORT_SQL := NULL;
SORT_SQL := 'SELECT EMP_ID, F_NAME, L_NAME FROM EMPLOYEE'||
' WHERE DEPT_NO=P_DEPT_NO '||
' ORDER BY '||P_SORTBY||' '||P_SORTDIR||';'
EXECUTE IMMEDIATE SORT_SQL INTO P_EMPL_CUR;
Thanks
Vasu
I am trying to implement a dynamic sort using pl/sql procedure
with two IN params, which tell what column to sort by
and wich direction. smth. like this
procedure getEmployees (p_dept_no in employee.dept_no%type,
p_sortBy in varchar2,
p_sortDir in varchar2
p_empl_cur in out emplCur
) is
begin
OPEN p_empl_cur
FOR
SELECT EMP_ID, F_NAME, L_NAME
FROM EMPLOYEE
WHERE DEPT_NO=p_dept_no
ORDER BY p_sortBy p_sortDir ; --> this is the part that does not work
-- I make sure that the params values are correct
-- possible p_sortBy values: EMP_ID, F_NAME, L_NAME
-- and p_sortDir: 'ASC' or 'DESC'
end getEmployees;
Thank you in advance.