Notification facility

The notification facility sends a message to a designated VM user when an SQL statement exceeds a resource consumption limit, defined as:

- a maximum number of DB2 buffer lookups
- a maximum number of I/O requests or dataspace page transfers
- a maximum response time
- a maximum idle time
- a maximum lockwait time

All messages sent are also kept in a CMS file, that is sent to the same VM user at the end of the day.