Some way for to order ASC or DESC

Question

Hi
is there some way for a query to order ASC or DESC when the user to pass 1 or 2 in parameter
EXPLAIN
   Select  column1,column2...column3
      from  mytables
       WHERE .....
      ORDER BY   -- here I must put ASC  if user put 1 in Parameter in Procedure or  DESC
        if user put 2tia

Answer 1

if u query is in some plsql program and u want to
pass the column name as variable then u can use
dynamic sql
execute immediate..
or dbms_sqlApart from the "y" and "o" keys being broken on your
keyboard (I think the word you're looking for is
"you") I assume you are referring to building up a
query string such as...
create or replace procedure myproc (asc_desc IN
VARCHAR2) is
declare
v_str VARCHAR2(32767);
gin
v_str := 'SELECT * FROM mytable ORDER BY 1';
IF asc_desc = 'D' THEN
v_str := v_str || ' DESC';
D IF;
EXECUTE IMMEDIATE v_str;
d;
/The problem with building dynamic SQL in such a way
is that you are liable to prevent query re-use and
cause hard-parsing of the query to build the
execution plan, especially if there are other factors
of the query that are dynamically built in (bind
variables permitted).
Where possible, pure SQL with bind variables should
be used to ensure performance and query re-use within
the optimizer.
;)Thank , But I must return a cursor to Java