Medeiros, C. B., & Andrade, M. J. [1994]. "Implementing Integrity Control in Active Data Bases", Journal of Systems and Software, 27, 171-181. Home/Search Document Details and Download
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Integrity Constraints in the multi-paradigm language PROGRES - Münch, Winter, Schürr (Correct)
....programming environments. PROGRES is a visual programming language itself enriched by some textual language constructs. Constraint languages are well known e.g. in database systems. Since many years constraints are used in active database systems in order to ensure the integrity of a database [10, 22]. C. Bauzer Medeiros gives a definition of those integrity constraints in [10] An integrity constraint in a database environment is a statement of a condition that must be met in order to maintain data consistency. Bauzer Medeiros presents a language called ALICE RL (Assertion Language for ....
....by some textual language constructs. Constraint languages are well known e.g. in database systems. Since many years constraints are used in active database systems in order to ensure the integrity of a database [10, 22] C. Bauzer Medeiros gives a definition of those integrity constraints in [10]: An integrity constraint in a database environment is a statement of a condition that must be met in order to maintain data consistency. Bauzer Medeiros presents a language called ALICE RL (Assertion Language for Integrity Constraint Expressions Rule Language) This language (or a variation of ....
C. B. Medeiros and M. J. Andrade. Implementing integrity control in active data bases. Journal of Systems Software, 27:171--181, 1994.
Rule application in GIS - A case study - Medeiros, Magalhães (1993) (1 citation) Self-citation (Medeiros) (Correct)
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C. B. Medeiros and M. J. Andrade. Implementing Integrity Control in Active Databases . In Proc. 1st International Conference on Information and Knowledge Management, pages 310--317, Baltimore, November 1992.
Maintenance of Binary Topological Constraints through Active.. - Medeiros, Cilia (1995) (3 citations) Self-citation (Medeiros) (Correct)
....representations. 5 Expressing and Maintaining Constraints Several algorithms have been reported in the literature for transforming integrity constraints expressed in a logic language into rules (e.g. Mor84, WF90] Since we used an object oriented database model, we adopted the mechanism of [MA94] It consists of analyzing the constraint to identify classes and objects that may have to be checked whenever an update occur. The database schema is then analyzed to identify additional classes to be checked (due to constraint inheritance) and to eliminate superfluous entities (given method ....
....maintenance of the constraint thus expressed. We assume that each binary topological relation is expressed as a constraint in a logic language 1 , using the topological relationships of [CevO93] 1) Transformation Step The transformation step we used is basically the same algorithm defined in [MA94] This algorithm is based on generating a set of (E, C, A) rules using only constraint and database schema specification. Initially, each constraint expression is analyzed together with the database schema and a spatial relationship table to determine which updates may violate it. Then, a set of ....
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C. B. Medeiros and M. J. Andrade. Implementing Integrity Control in Active Databases . The Journal of Systems and Software, pages 171--181, december 1994.
A Taxonomy of Spatial Data Integrity Constraints - Cockcroft (1997) (1 citation) (Correct)
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Medeiros, C. B., & Andrade, M. J. [1994]. "Implementing Integrity Control in Active Data Bases", Journal of Systems and Software, 27, 171-181.
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