Multics Relational Data Store
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The Multics Relational Data Store, or MRDS for short, was the first commercial
systems that emerged in the late 1970s and early 80s, MRDS used a command language only for basic data manipulation, equivalent to theSELECT
or UPDATE
statements in SQL. Other operations, like creating a new database, or general file management, required the use of a separate command program.
References
- Paul McJones, "Multics Relational Data Store (MRDS)"