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ISBL is a programming language created in 1980.

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ISBL (Information Systems Base Language) is the relational algebra notation that was invented for PRTV, one of the earliest database management systems to implement E.F. Codd's relational model of data.. Read more on Wikipedia...


Example from Wikipedia:
OS = ORDERS * SUPPLIERS LIST OS: NAME="Brooks"聽% SNAME, ITEM, PRICE
om.html 路 isbl.html 路 signal.html

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