query

[Octavian Rasnita]

Hi,

I want to create a query that selects the diference between the value of a
field from the current record and the value of the same field from the
previous record.
Is this possible?

It should return a list of diferences.

Or, at least I should be able to do that query to do this diference between
2 specified records.

Thank you.

Teddy