An inclusion dependency is defined as the existence of attributes in a table whose values must be a subset of the values of attributes in another table. When the latter set conforms a key for its table, the inclusion dependency is key-based.
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Jan 4, 2024 · In database design, inclusion dependency (IND) signifies a constraint where values in one column or set must be a subset of values in another column or set.
The inclusion dependency is a statement in which some columns of a relation are contained in other columns. The example of inclusion dependency is a foreign key ...
Abstract: Inclusion dependencies are among the most important database dependen- cies. In addition to their most prominent application – foreign key ...
Inclusion dependencies, or INDs (which can say, for example, that every manager is an employee) are studied, including their interaction with functional ...
May 30, 2023 · Inclusion dependencies (INDs) are a well-known type of data dependency, specifying that the values of one column are contained in those of ...
Hence, IND's are valuable for database design, since they permit us to selectively define what data must be duplicated in what relations. IND's, together with ...
Mar 25, 2024 · ABSTRACT. Inclusion dependencies (INDs) demand that the value set that appears in one attribute is contained in the value set that appears.
There are two implication problems for functional dependencies and inclusion dependencies: general implication and finite implication.
We show that the implication problem is undecidable for the class of functional and inclusion dependencies. This holds true even if the inclusion dependencies ...