I need to store data created from a calculation in a query to a master table
in Access 2000. Any suggestions?
It appears that you've been bit by the Microsoft newsgroup website bug
which falsely says that there was an error and your message didn't
post. It did.
As for your question:
Storing derived data such as this in your table accomplishes
three things: it wastes disk space; it wastes time (almost
any calculation will be MUCH faster than a disk fetch); and
most importantly, it risks data corruption. If one of the
underlying fields is subsequently edited, you will have data
in your table WHICH IS WRONG, and no automatic way to detect
that fact.
Just redo the calculation whenever you need it, either as a
calculated field in a Query or just as you're now doing it -
in the control source of a Form or a Report textbox.
If you feel that you have some GOOD reason to violate these principles
post back - it's possible; it's just that it's usually neither
necessary nor appropriate.
John W. Vinson[MVP]
Join the online Access Chats
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