::
Introduction
::
Database principles
::
Tables
::
Queries
::
Data security
::
Glossary
::
Resources
::
Student Files
:: Contact
:: Back to Main Site
:: Site
Map |
Microsoft Access - Class 1 - Part IX
|
>
Back |
Guidelines for Primary Keys:
| 1) |
They should NEVER change |
| |
|
| 2) |
Make them long enough (or complex enough) to do
the job |
| |
|
| 3) |
Once it’s used, it’s used! |
| |
|
| 4) |
Many times, it’s best if it’s meaningless
(from a “systems” point of view). |
Print this page
|
