How to Concatenate Table name and Where condition at runtime

Question

I am passing parameter as User and Zone to Stored Procedure.How to concatenate Table Name
and WHERE CONDITION in SQL Statement.i have different type of users and zones.

Answer 1

Hi !
declare
  cur sys_refcursor;
  r emp%rowtype;
  v_sql varchar2(512);
begin
-- do your logic here
  v_sql := 'select * from emp';
  open cur for v_sql;
  loop
    fetch cur into r;
    exit when cur%notfound;
    dbms_output.put_line(r.ename);
  end loop;
  close cur;
end;In this example you can see how can be done this with cursor vars .. You should concatenate v_sql string according to your requirements.
But as in further posts has already been mentioned , be carefull at publishing such kind of procedures and think on security.
Also when you want dynamicaly change from clause , you should consider using different records to accept data ? Maybe all your tables has the same structure and then this problem will be smaller.
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