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
[edit]OS = ORDERS * SUPPLIERS LIST OS: NAME="Brooks" % SNAME, ITEM, PRICE
See also
[edit]- 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
[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=ISBL&oldid=1138537947"