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In [[computer science]], a '''database connection'''cllection of many databases is the means by which a [[database server]] and its [[Client (computing)|client]] software communicate with each other. The term is used whether or not the client and the server are on different machines.
The client uses a database connection to send [[Command (computing)|commands]] to and receive replies from the server. A database is stored as a file or a set of files on magnetic disk or tape, optical disk, or some other secondary storage device. The information in these files may be broken down into records, each of which consists of one or more fields.
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