Delete command (Access 2000)

[freelance]

I have a forn and a subform for clients.The subform describes the visits to the clients.I want to make my delete command perform so, that to delete only when there are no entries in the subform.In my applied example there is an entry for the customer and the comman should not delete it.Can i do it ?

[HansV]

Activate the Relationships window.
Make sure that there is a relationship between the clients table and the visits table.
Double click the join line, and tick the check box "Enforce referential integrity", but do *not* tick the check box "Cascade delete related records". Then click OK.

You won't be able to delete clients as long as they have at least one visit record.