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Relationship Question



 
 
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Old December 3rd, 2009, 05:35 PM posted to microsoft.public.access.tablesdbdesign
Gina Whipp
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Posts: 3,500
Default Relationship Question

Steve,

FK = Foreign Key. When you relate a Primary Key to a field, that field is
referred to as a Foreign Key.

--
Gina Whipp

"I feel I have been denied critical, need to know, information!" - Tremors
II

http://www.regina-whipp.com/index_files/TipList.htm

"Steve Haack" wrote in message
...
Gina,
Can you tell me what you mean by FK?

"Gina Whipp" wrote:

Steve,

Ummm, do you get a message? What happens when you try?

I'm going to make a suggestion here... I would have set up the table
differently...

tblPeople
pPeopleID (PK - Autonumber)
pBadgeID (Set to no duplicates but I can change when I like)

tblEvents
eEventID (PK)
eDirector (FK-linked to pPeopleID)
eManager (FK-linked to pPeopleID)

The above way allows you to set Referential Integrity without worrying
about
Cascading Updates. A Primary Key should be used to relate records and
you
should not care what it is. Okay, enough with my two cents worth!

--
Gina Whipp

"I feel I have been denied critical, need to know, information!" -
Tremors
II

http://www.regina-whipp.com/index_files/TipList.htm

"Steve Haack" wrote in message
...
I have a field called tblPeople. It has an AutoNumber field as its PK,
it
has
a field called ID which is a text field, indexed (no dupes).

I have another table called tblEvents. In tblEvents I have amongst
others,
two fields, Manager and Director. I am trying to create relationships
between
tblEvents.Manager and tblPeople.ID, and also between tblEvents.Director
and
tblPeople.ID. I have done that.

What I can't do though, is set Referential Integrity with Cascading
Updates
so that if a person's ID changes (which it can, since it is an ID Badge
Number) it updates the records in tblEvents.

Any ideas?



.



 




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