Sentence examples for relational constraints from inspiring English sources

Multivalued dependencies (MVDs) are an important class of relational constraints that is fundamental to relational database design.

The semantic rules are thus defined over such a structure in a way very similar to relational constraints and are called edits.

In order to take implicit variations of constituent proportioning induced by relational constraints into account, a mixture experiment technique was adopted.

This feature sharply limits the kinds of natural language questions to be expected from a user, such as questions aimed at retrieving objects or tuples of objects satisfying given relational constraints, or providing summary or extremal properties (longest rivers, lowest costs, and the like) about them.

We present a formalization of this problem within a relational (constraint-based) framework, and devise solutions to automatically determine qualitative values for a device model.

Moreover, inclusion dependencies formalizing inter-relational constraints cannot directly be represented in the relational model, due to the fact that its basic construct, the relation, is the unique structure.

Since there are aspects that can be improved, we propose a new architecture called labelled object-relational constraint database (LORCDB).

XML and relational integrity constraints are also taken into consideration.

Moreover, Table 4 shows that 28% of the participants feel that their proposed solution covered 100% of the relational aspect "constraints".

We focus on a set of relational integrity constraints pertaining to the spatial, temporal and spatiotemporal properties of 3D spatiotemporal data.

A method to map XML DTDs to relational schemas with constraints such as functional dependencies, domain constraints, choice constraints, reference constraints, and cardinality constraints over DTDs is given, which can preserve the structures of DTDs as well as the semantics implied by the above constraints over DTDs.