Ask the Expert

Composite keys in fact tables

Is it a good approach to use a composite key in a fact table linking to a dimensional table?

    Requires Free Membership to View

The fact that a fact table contains a composite key (a primary key that is made up of multiple parts) that links to a dimension table is exactly the approach that is used within dimensional modeling. All fact tables are made up of a composite key to a dimension table, thereby defining the grain of the table, and this then links to the key within the dimension table.

This was first published in September 2005

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: