How many time have we seen a DB2 Acess plan and wondered what 'timeron' means .... And always, we have had hardly any time to find what it is :
Definition of timeron from IBM Manuals -
A timeron is a unit of measurement used to give a rough relative estimate of the resources, or cost, required by the database server to execute two plans for the same query. The resources calculated in the estimate include weighted CPU and I/O costs.
A timeron is an abstract unit of measure. It does not directly equate to any actual elapsed time, but gives a rough relative estimate of the resources (cost) required by the database manager to execute an access plan.