SERQL: an ER query language supporting temporal data retrieval

Author

Wuu, Gene T J

Author_Institution

Bell Commun. Res., Piscataway, NJ, USA

fYear

1991

fDate

27-30 Mar 1991

Firstpage

272

Lastpage

279

Abstract

A database query language, SERQL (structured entity-relationship query language), which has been developed for production use in telephone network services provisioning systems is described. The language is based on a database model extended from the basic entity-relationship model. These extensions include structured attributes, class hierarchy, and incorporation of the temporal dimension. The author also describes the temporal aspect of the network provisioning systems. The concept of orthogonal relationships between events and temporal objects is introduced in this model. Query specification for handling temporal data is discussed

Keywords

information retrieval; query languages; ER query language; SERQL; class hierarchy; database model; events; network provisioning systems; query specification; structured attributes; structured entity-relationship query language; telephone network services; temporal data retrieval; temporal dimension; temporal objects; Assembly systems; Circuits; Database languages; Employment; Erbium; Information retrieval; Navigation; Production systems; Remuneration; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers and Communications, 1991. Conference Proceedings., Tenth Annual International Phoenix Conference on

Conference_Location

Scottsdale, AZ

Print_ISBN

0-8186-2133-8

Type

conf

DOI

10.1109/PCCC.1991.113822

Filename

113822