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doi:10.1016/0020-0255(89)90024-8 
Copyright © 1989 Published by Elsevier Science Inc.
MSQL: A multidatabase language
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W. Litwin, A. Abdellatif, A. Zeroual, B. Nicolas and Ph. Vigier
Received 15 August 1987.
Communicated by Ahmed Elmagarmid
Available online 20 May 2003.
Abstract
Many databases are now accessible through computer networks, and users frequently have data of interest in different databases. Manipulations of such data call for functions that do not exist in classical manipulation languages and database systems. A new type of data manipulation languages is needed, called multidatabase manipulation languages. We describe the multidatabase language
, designed for the manipulation of data from different relational databases.
is an extension of
, which has become the standard for relational database systems.
