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Forum home » Delegate support and help forum » Microsoft Access Training and help » Foreign Key
Foreign Key
Resolved · Low Priority · Version 2003
Wed 22 Jul 2009, 13:57Delegate Sue said...
Sue has attended:
Access Introduction course
Access Intermediate course
Foreign Key
When is this ussed?
Wed 22 Jul 2009, 14:34Trainer Amanda said...
RE: Foreign Key
Hello Sue
Thank you for your question and welcome to the forum.
A foreign key is used to be able to link two tables with each other - typically what is used as a foreign key in one table will be the primary key in another; then the tables are linked with each other by these keys (primary+foreign).
There is a good explanation with an example database available via the link below:
http://www.databasedev.co.uk/primary_foreign_key_constraints.html
Kind regards
Amanda
Wed 29 Jul 2009: Automatically marked as resolved.
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Access tip:Related tablesWhen you have related tables such as Customers and their Orders, the Customer table is the Primary table. |
