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microsoft+access+training - Microsoft Access - refferential integrity | Access forum

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Microsoft Access - refferential integrity

Hi,

Can you please give be a brief desciption of what referential integrity is? I am currently using Microsoft Access 2003 database.

Thanks
Dave

RE: Microsoft Access - refferential integrity

Hi Dave,

Referential integrity is used where you have a number of linked tables i.e. customer and order.

If you want to delete a customer you would generally want to delete all the orders that belong to that customer. Thus by enforcing referential integrity Microsoft Access would automatically delete all orders when you delete a customer.

However if you want to keep all of the records that belong to a customer you must NOT enforce referencial integrity within Microsoft Access.

Hope this helps you out with Microsoft Access.
David


 

Access tip:

Display current date & time in column of any width

The worksheet function =NOW() returns the current date & time. When entered into a column which is not wide enough to display the value NOW returns, the cell displays ###

View all Access hints and tips


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