The Key field reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Key field

A key field is a field of a database (typically a relational database) table which together form a unique identifier for a record (a table entry). The aggregate of these fields is usually referred to simply as "the key".

This article was originally based on material from the Free On-line Dictionary of Computing and is used with permission under the GFDL.

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