oracle drop index if exists

Question

How do you drop an index only if it exists?

It seems simple but I did found anything on the net. The idea is to drop it only if it exists, because if not, I will hav

Answer 1

Don't check for existence. Try to drop, and capture the exception if necessary...

DECLARE
   index_not_exists EXCEPTION;
   PRAGMA EXCEPTION_INIT (index_not_exists, -1418);
BEGIN
   EXECUTE IMMEDIATE 'drop index foo';
EXCEPTION
   WHEN index_not_exists
   THEN
      NULL;
END;
/