Pl sql packages getting invalid

Question

Hi All,
I am working on a OLTP VLDB oracle 10g database. I have observed that many of pl sql packages get in invalid state. There are many cronjobs , dbms jobs running 24x7. How do I find out the root cause of this?

Answer 1

You can write Database DDL trigger and log DDL operation into your log table.
Then check which statement caused it:
CREATE OR REPLACE TRIGGER DDL_TRIG BEFORE
ON DATABASE
  INSERT INTO YOUR_LOG_TABLE
  SELECT ora_sysevent, ora_dict_obj_owner,
  ora_dict_obj_name, NULL, USER, SYSDATE
  FROM dual You should check if table which caused trigger to fire is dependency of your desired package like
where ora_dict_obj_name in (
  select referenced_name from dba_dependencies where name IN(YOUR_INVALIDATED_PACK_LIST) and   
   referenced_type='TABLE';
  )