ISBL

From Wikipedia, the free encyclopedia

Page Module:Message box/ambox.css has no content.

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "ISBL" – news · newspapers · books · scholar · JSTOR (September 2016) (Learn how and when to remove this message)

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

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 in the early 1980s.

External links

Sample ISBL usage

Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found.

Retrieved from "https://cosmopedia.co/index.php?title=ISBL&oldid=1861947"