• In relational database theory, a functional dependency is the following constraint between two attribute sets in a relation: Given a relation R and attribute...
    20 KB (2,575 words) - 11:25, 17 February 2025
  • Thumbnail for Transitive dependency
    software depends on directly. In a computer program a direct dependency is functionality from a library, or API, or any software component that is referenced...
    4 KB (476 words) - 21:54, 17 February 2025
  • Functional dependency Functional dependency is the property that a value in a tuple may be derived from another value in that tuple. A functional dependency...
    30 KB (4,196 words) - 15:00, 15 March 2025
  • attributes (e.g. database columns) are functionally dependent on solely a key, except the case of functional dependency whose right hand side is a prime attribute...
    14 KB (1,822 words) - 16:41, 7 March 2025
  • By using BCNF, a database will remove all redundancies based on functional dependencies. Edgar F. Codd released his original article "A Relational Model...
    14 KB (1,682 words) - 03:13, 4 February 2025
  • multivalued dependency is a full constraint between two sets of attributes in a relation. In contrast to the functional dependency, the multivalued dependency requires...
    9 KB (1,297 words) - 09:12, 11 February 2025
  • recognized dependency types are: Functional dependency Join dependency Multivalued dependency Tuple-generating dependency Transitive dependency Equality-generating...
    1 KB (99 words) - 16:57, 17 March 2025
  • are concerned with functional dependencies, 4NF is concerned with a more general type of dependency known as a multivalued dependency. A table is in 4NF...
    8 KB (908 words) - 11:57, 30 January 2025
  • its dependency on Format can be preserved: Now, both the Book and Price tables conform to 2NF. The Book table still has a transitive functional dependency...
    37 KB (2,918 words) - 07:42, 23 April 2025
  • Thumbnail for Dependency injection
    Dependency injection involves four roles: services, clients, interfaces and injectors. A service is any class which contains useful functionality. In...
    35 KB (3,536 words) - 21:17, 30 March 2025
  • for F (a set of functional dependencies on a relation scheme) is a set of dependencies such that F logically implies all dependencies in F c {\displaystyle...
    5 KB (703 words) - 16:38, 17 August 2024
  • Thumbnail for Referential integrity
    However, logical implication between dependencies that can be inclusion dependencies or functional dependencies is undecidable by reduction from the word...
    8 KB (960 words) - 07:26, 28 September 2024
  • is not minimal, some subset of that will be minimal. There is a functional dependency from the candidate key to all the attributes in the relation. The...
    9 KB (1,380 words) - 16:48, 25 January 2025
  • elementary functional dependency is a full functional dependency (a non-trivial functional dependency X → A such that there is no functional dependency X' →...
    2 KB (257 words) - 07:56, 26 March 2024
  • axioms (or, more precisely, inference rules) used to infer all the functional dependencies on a relational database. They were developed by William W. Armstrong...
    7 KB (965 words) - 20:33, 5 December 2024
  • Unified Modeling Language Dependency relation, a type of binary relation in mathematics and computer science. Functional dependency, a relationship between...
    4 KB (553 words) - 11:14, 29 March 2024
  • join dependency is to say that the relationships in the join dependency are independent of each other. Unlike in the case of functional dependencies, there...
    4 KB (565 words) - 14:45, 26 March 2024
  • thus inverting the conventional dependency relationship. Figures 1 and 2 illustrate code with the same functionality, however in Figure 2, an interface...
    17 KB (2,021 words) - 09:21, 7 February 2025
  • Type class (category Functional programming)
    class constraint Monad.State s m. In this constraint, there is a functional dependency m -> s. This means that for a given monad m of type class Monad...
    21 KB (2,297 words) - 20:15, 4 May 2025
  • with cross-functional dependencies and peers from other functions. The structure of the organizations in general do not support cross-functional collaboration...
    11 KB (1,379 words) - 20:17, 8 February 2024
  • the path of dependency grammar. The following frameworks are dependency-based: Algebraic syntax Operator grammar Link grammar Functional generative description...
    34 KB (4,489 words) - 05:08, 21 February 2025
  • accessed, such as an operation or attribute, a dependency is created. functional dependency "Dependency". Unified Modeling Language 2.5.1. OMG Document...
    4 KB (459 words) - 13:24, 8 June 2024
  • University in Prague since the 1960s by a team led by Petr Sgall. Based on the dependency grammar formalism, it is a stratificational grammar formalism that treats...
    1 KB (137 words) - 22:14, 27 March 2024
  • developed QuickTransit cross-platform virtualization Transitive dependency, a functional dependency of database management which holds by virtue of transitive...
    2 KB (236 words) - 08:53, 25 July 2024
  • {\displaystyle R} or said to have a lossless join with respect to a set of functional dependencies F {\displaystyle F} if any relation r ( R ) {\displaystyle r(R)}...
    5 KB (719 words) - 01:15, 17 August 2024
  • operating systems Freedesktop.org (fd.o), an interoperability project Functional dependency, a constraint in a relation from a database Nissan FD engine, for...
    2 KB (228 words) - 04:07, 25 December 2024
  • In computer science, functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative...
    87 KB (8,696 words) - 10:16, 3 May 2025
  • important subclass of equality-generating dependencies are functional dependencies. An equality-generating dependency is a sentence in first-order logic of...
    3 KB (463 words) - 02:03, 3 April 2025
  • only 1 vertex and no edge. Database theory has a concept called functional dependency, written X → Y {\displaystyle X\to Y} . The dependence X → Y {\displaystyle...
    11 KB (1,534 words) - 19:01, 6 March 2025
  • somewhat common in functional programming, where inductive and recursive definitions are often encouraged. Circular dependencies can cause many unwanted...
    3 KB (329 words) - 03:33, 19 September 2024