I have a question :
I want to use the action 'OnClose' to delete the records of a table called
"customers",where the value of the field "status" and the field "receiving
date" of the table are NUll.

Pietro,

You can use a macro or a VBA procedure to run a Delete Query. In code,
a suggested way would be like this...
CurrentDb.Execute "DELETE * FROM Customers WHERE Status Is Null AND
[Receiving Date] Is Null", dbFailOnError

--
Steve Schapel, Microsoft Access MVP

Pietro wrote:
> I have a question :
> I want to use the action 'OnClose' to delete the records of a table called
> "customers",where the value of the field "status" and the field "receiving
> date" of the table are NUll.