1990, English, Article edition: ESQL : an extended SQL with object and deductive capabilities Gardarin, Georges; Valduriez, Patrick

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Physical Description
  • text
Published
  • HAL - CCSD
  • 1990
Language
  • English

Edition details

Title
  • ESQL : an extended SQL with object and deductive capabilities
Author
  • Gardarin, Georges
  • Valduriez, Patrick
Published
  • HAL - CCSD
  • 1990
Physical Description
  • text
Subjects
Notes
  • ESQL is an SQL upward-compatible database language that integrates in a uniform and clean way the essential concepts of relational, object-oriented and deductive databases. ESQL is intended for traditional data processing applications as well as more complex applications such as large expert systems. Therefore, ESQL's salient features are : a rich and extendible type system based on abstract data types (ADTs) implemented in various programming languages ; complex objects with object sharing by combining generic ADTs and object identity ; the capability of querying and updating relations containing simple or complex objects using SQL-compatible syntax and semantics ; and a Datalog-like deductive capability provided as an extension of the SQL view mechanism. ESQL's functional semantics enables uniform manipulation of ESQL data and should facilitate the implementation of the ESQL compiler.
  • HAL:inria-00075373, version 1
  • HAL:http:/​/​hal.inria.fr/​inria-00075373/​en/​
Language
  • English
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