How to check a procedure/view/table exists or not before dropping it in db2 9.1?

Question

How do we write below pseudo code in db2,

If (Proc exists)
  Drop Proc
  Create Proc
Else
 Create Proc

One solution I found, after googling is

Answer 1

this query:

SELECT DISTINCT ROUTINENAME, RESULT_SETS, REMARKS 
FROM SYSIBM.SYSROUTINES 
WHERE ROUTINESCHEMA='' AND FUNCTION_TYPE NOT IN ('S', 'T')

(where you specify your schema name at the placeholder) gives you all procs in a schema. So the Proc exists part is simply an EXISTS query on that view with the proper proc name.