QBD*: a graphical query language with recursion

Author

Angelaccio, Michele ; Catarci, Tiziana ; Santucci, Giuseppe

Author_Institution

Dipartimento di Ingegneria Elettronica, Roma II Univ., Italy

Volume

16

Issue

10

fYear

1990

fDate

10/1/1990 12:00:00 AM

Firstpage

1150

Lastpage

1163

Abstract

A system to query databases using diagrams as a standard user interface is proposed. The system, called Query by Diagram* (QBD*), makes use of a conceptual data model, a query language on this model, and a graphical user interface. The conceptual model is the entity-relationship model. The query language, whose expressive power allows recursive queries, supports visual interaction. The main characteristics of the interface are ease of use and the availability of a rich set of primitives for schema selection and query formulation. The expressive power of QBD* and G⁺, which are the only languages allowing recursive queries to be expressed graphically are compared

Keywords

graphical user interfaces; information retrieval; query languages; QBD*; Query by Diagram*; conceptual data model; databases; graphical query language; recursion; standard user interface; Data mining; Data models; Database languages; Design for quality; Graphical user interfaces; Human computer interaction; Power system modeling; Spatial databases; User interfaces; Visual databases;

fLanguage

English

Journal_Title

Software Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0098-5589

Type

jour

DOI

10.1109/32.60295

Filename

60295