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15 lines
942 B
Plaintext
15 lines
942 B
Plaintext
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RDB is a fast, portable, relational database management system
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without arbitrary limits, (other than memory and processor speed) that
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runs under, and interacts with, the UNIX Operating system.
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It uses the Operator/Stream DBMS paradigm described in "Unix
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Review", March, 1991, page 24, entitled "A 4GL Language". There are a
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number of "operators" that each perform a unique function on the data.
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The "stream" is suplied by the UNIX Input/Output redirection mechanism.
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Therefore each operator processes some data and then passes it along to
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the next operator via the UNIX pipe function. This is very efficient as
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UNIX pipes are implemented in memory (at least in versions of UNIX at
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RAND). RDB is compliant with the "Relational Model".
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The data is contained in regular UNIX ACSII files, and so can be
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manipulated by regular UNIX utilities, e.g. ls, wc, mv, cp, cat, more,
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less, editors like the RAND editor 'e', head, RCS, etc.
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