K
Kerberos

A network authentication protocol that provides strong authentication for client/server applications.

key

A column or an ordered collection of columns that is identified in the description of a table, index, or referential constraint. The same column can be part of more than one key.

keyword

(1) One of the predefined words of a computer, command language, or an application.

(2) A name that identifies an option used in an SQL statement.

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