OCI: memory leaks

The calls to OCIServerDetach() and OCISessionEnd() are not mandatory but are recommended. If the application terminates, and OCITransCommit() (transaction commit) has not been called, any pending transactions are automatically rolled back. (https://docs.oracle.com/en/database/oracle/oracle-database/19/lnoci/oci-programming-basics.html#GUID-39339E95-A79E-43BD-B57E-4DB536CB3475)

IT IS MANDATORY for SERVER (infinite loop) MODE!!! Without these two calls RAM is leaked !!!