Foreign key A foreign key is a primary key from one table that appears in another table to link the two together.

In Microsoft Excel, the Foreign key is the primary key that lets users match data in both tables. READ: How to add Bullets to Text Box in Excel.

When working on a multidimensional design, every fact table within scope should be handled with care. In an ideal world, each low-level fact table represents the metrics related to a business event.

I have a foreign key constraint that I created to reference the primary key of another table:constraint geneassay_fk foreign key (geneassay) references ...