davey23uk/all,
Thanks for your help. The reason I ask is sometimes we have very less active session. Even then this error ORA-4031 comes. So is the memory allocated by each session as defined by session_cached_cursors untouchable. Meaning new requests cannot touch it even if the sessions are inactive. This is my specific question. Thanks again. What else is untouchable? Apart form PINNED packages. Any help would be appreciated.