ISBL
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.
Example
OS = ORDERS * SUPPLIERS
LIST OS: NAME="Brooks" % SNAME, ITEM, PRICE
gollark: You don't get to decide.
gollark: If I am elected I will implement referenda for every law.
gollark: So “cable“?
gollark: Maybe some sort of convenient HTTP-accessible system.
gollark: We need some sort of unified framework for citizenship and elections.
See also
- IBM Business System 12 - An IBM industrial strength relational DBMS influenced by ISBL. It was developed for use by customers of IBM's time-sharing service bureaux in various countries the early 1980s.
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