Related to using dynamic statements

Question

Hi,
Just when defining cursors, are there any other ways, by which we can use any dynamic statements? Such as depending on different conditions, we want to have different 'where' clauses.
Thks & Rgds,
HuaMin

Answer 1

For a straight in-line cursor which is what I think you are requiring, the closest thing I can think of would be something like....
PROCEDURE myproc(p_x IN NUMBER := NULL, p_y IN NUMBER := NULL, p_z IN NUMBER := NULL) IS
CURSOR cur_mycursor
  SELECT a,b,c,d
  FROM   mytable
  WHERE  x = NVL(p_x, x)
  AND    y = NVL(p_y, y)
  AND    z = NVL(p_z, z);Obviously this is a basic example showing how you can restrict the query on just the values you supply, but you could adapt for more complex things.