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.
Dig Deeper on Oracle and SQL
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.