Enforcing Integrity Constraints in Database Programming Languages

Benzaken, Véronique; Lécluse, Christophe; Richard, Philippe

doi:10.1007/978-1-4471-3209-7_17

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…A similar criterion like the one we described in the definition above has also been defined in [13] called characterizations of constraints. In contrast to our approach they also take paths occurring in transactions into account, thereby focusing on a priori style transactions.…”

Section: Modify Operations and Constraint Characteristicsmentioning

confidence: 94%

“…Their main motivation is efficiency of consistency checking. Work done in this group provides techniques either to generate checking code for constraints specified declaratively [13,44,46] or explicitly specified in the conceptual model described using the entity relationship model or one of its extension [41,42,57] or to prove correctness of methods of classes and transactions w.r.t. integrity constraints [2,3,58].…”

Section: Related Workmentioning

confidence: 99%

“…The complete definition of characterizations of constraints is more complex than the one presented here. In the definition of [13], extensions and names of classes are considered as a part of characterizations of constraints. For instance, according to the criterion of [13], characterizations of constraint W 2 are the class extension Employees and the path expression Employee.dateOfBirth.…”

Section: Modify Operations and Constraint Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

Consistency management in object‐oriented databases

Oakasha

Conrad²,

Saake

2001

Concurrency and Computation

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SUMMARYThe paper presents concepts and ideas underlying an approach for consistency management in objectoriented (OO) databases. In this approach constraints are considered as first class citizens and stored in a meta-database called constraints catalog. When an object is created constraints of this object are retrieved from the constraints catalog and relationships between these constraints and the object are established. The structure of constraints has several features that enhance consistency management in OO database management systems which do not exist in conventional approaches in a satisfactory way. This includes: monitoring object consistency at different levels of update granularity, integrity independence, and efficiency of constraints maintenance; controlling inconsistent objects; enabling and disabling constraints, globally to all objects or locally to individual objects; and declaring constraints on individual objects. All these features are provided by means of basic notations of OO data models.

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Section: Modify Operations and Constraint Characteristicsmentioning

confidence: 94%