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The Computer Journal 1989 32(1):55-62; doi:10.1093/comjnl/32.1.55
© 1989 by British Computer Society
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A Query Facility to a network DBMS

N. Parimala *, N. Prakash *, B. L. N. Rao * and N. Bolloju *

R and D Group, CMC Ltd., 115 Sarojini Devi Road, Secunderabad 50003, India

A query facility to a network DBMS is described wherein it is possible to retrieve and update the data in the database. Apart from the existential and universal quantifiers, some additional quantifiers, which are found useful in a database environment, are provided for. A facility, called the discourse facility, by which a set of related queries can be asked is also explained. In this, the data retrieved in a query can be used in subsequent queries.

Received April 1987. revised June 1987.

* R and D Group, CMC Ltd, 115 Sarojini Devi Road, Secunderabad 50003, India


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