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: Based on the Wikipedia article on Pfizer, the P is silent, if I'm reading this right.
gollark: Technically, BioNTech developed it and Pfizer helped with manufacturing and such.
gollark: I just muted them all several months ago.
gollark: These sure are videos which exist*.
gollark: (Also, most people who die from it are still old enough that they're unlikely to have more children.)
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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