A primary key is a unique identifier for each record in a database table, making sure no two rows have the same primary key value. Learn more with Techopedia.

A primary key is a guaranteed way of uniquely identifying each record. In the school example, the primary key used to identify each member of staff in the teacher table is Staff ID.

What does primary key actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Which makes for a better primary key: natural data points or meaningless values? Database developers have strong opinions on this facet of primary key design. This article settles the debate once ...

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.