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Database Structure Question (Access2000)

Database Structure Question (Access2000)

Database Structure Question (Access2000)

I have a table (access2000) that stores employee information, and it uses lookup tables to classify what craft, region, business unit, etc. that the employee is in.

in these lookup tables, should I have some kind of unique primary key? or is that not necessary to the functionality of databases in general or Access?


RE: Database Structure Question (Access2000)

Of course you must use an unique primary key.

Let say you have in your craft look up table the following

  type          skill
carpenter     2nd grade
welder        2nd grade
welder        1st grade
mechanic      3 rd grade

If you have a look-up on type, which welder the database must asume? Your reference must be unique

S. van Els

RE: Database Structure Question (Access2000)

In the case where I have customized lookup fields, I can see a need for having a primary key to make my lookup table entries unique, but how about in the case of a lookup for... say... State? as in address info of an employee?

Should I have a seperate lookup table? or just define the combo box with the state letters?

RE: Database Structure Question (Access2000)

If you have information that is not likely to change, use the validation option in the field. In case of state I would use a look-up table. A combo box can be filled at run-time from a query.

S. van Els

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