we keep loading data into the test tables for testing in our shop but they get deleted on a daiy basis.
Is there any explanation for this as we do not run jobs to delete this or not...
I am not sure but is there any property of the db2 table /database which deletes the data once the table is being overloaded or anything like that...
Most shops have a Purge job scheduled(once in a month or twise in a month etc),which would purge data from tables periodically based on some business criteria and subseuquentlly would be moved to Tapes.
This is to ensure sufficient space in tables for business needs.May be your shop too have a job scheduled for this in Test.This are common in production.
Alternatively DBA can set triggers for getting info and to initiate jobs when a partition is full.