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An entity–attribute–value model (EAV) is a data model optimized for the space-efficient storage of sparse—or ad-hoc—property or data values, intended for situations where runtime usage patterns are arbitrary, subject to user variation, or otherwise unforeseeable using a fixed design. The use-case targets applications which offer a large ...
Below is a sample attribute–value system. It represents 10 objects (rows) and five features (columns). In this example, the table contains only integer values.
An associative entity is a term used in relational and entity–relationship theory. A relational database requires the implementation of a base relation (or base table) to resolve many-to-many relationships. A base relation representing this kind of entity is called, informally, an associative table. An associative entity (using Chen notation)
In science and research, an attribute is a quality of an object (person, thing, etc.). [1] Attributes are closely related to variables. A variable is a logical set of attributes. [1]
For example, think of A as Authors, and B as Books. An Author can write several Books, and a Book can be written by several Authors. In a relational database management system, such relationships are usually implemented by means of an associative table (also known as join table, junction table or cross-reference table), say, AB with two one-to-many relationships A → AB and B → AB.
Attributive language. This is the base language which allows: Atomic negation (negation of concept names that do not appear on the left-hand side of axioms) Concept intersection; Universal restrictions; Limited existential quantification; Frame based description language, [3] allows: Concept intersection; Universal restrictions
He states that "rather than being a semantically defined category, inalienability is more likely to constitute a morphosyntactic or morphophonological entity, one that owes its existence to the fact that certain nouns happened to be left out when a new pattern for marking attributive possession arose."
Another category of ditransitive verb is the attributive ditransitive verb in which the two objects are semantically an entity and a quality, a source and a result, etc. These verbs attribute one object to the other. In English, make, name, appoint, consider, turn into and others are examples: The state of New York made Hillary Clinton a Senator.