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a tuple-generating dependency (TGD) is a certain kind of constraint on a relational database. It is a subclass of the class of embedded dependencies (EDs)
Tuple-generating_dependency
Full constraint between two sets of attributes in a relation
certain tuples be present in a relation. Therefore, a multivalued dependency is a special case of tuple-generating dependency. The multivalued dependency plays
Multivalued_dependency
Where all data references are valid
{\displaystyle S} . Such constraint is a particular form of tuple-generating dependency (TGD) where in both the sides of the rule there is only one relational
Referential_integrity
Kind of constraint on a relational database
both tuple-generating dependencies and equality-generating dependencies. Embedded dependencies can express functional dependencies, join dependencies, multivalued
Embedded_dependency
Relational database theory concept
classification of dependencies: functional dependencies are equality-generating dependencies whereas inclusion dependencies are tuple-generating dependencies. Enforcing
Functional_dependency
Subfield of database theory
recognized dependency types are: Functional dependency Join dependency Multivalued dependency Tuple-generating dependency Transitive dependency Equality-generating
Dependency theory (database theory)
Dependency_theory_(database_theory)
Topics referred to by the same term
TGD or tgd may refer to: Tuple-generating dependency, a certain kind of constraint on a relational database TGD, the IATA code for Podgorica Airport,
TGD
Declarative logic programming language
programming Conjunctive query DatalogZ Disjunctive Datalog Flix SWRL Tuple-generating dependency (TGD), a language for integrity constraints on relational databases
Datalog
Digital database whose organization is based on the relational model of data
operators. New tuples can supply explicit values or be derived from a query. Similarly, queries identify tuples for updating or deleting. Tuples by definition
Relational_database
Revision of the C++ programming language released in 2026
std::ranges::generate_random, fills a range with random numbers from a uniform random bit generator Hashing support for std::chrono value classes Added tuple protocol
C++26
2011 edition of the C++ programming language standard
exists std::make_tuple to automatically create std::tuples using type deduction and auto helps to declare such a tuple. std::tie creates tuples of lvalue references
C++11
Way to specify the location of data on computer storage devices
cylinder-head-sector (CHS) scheme, where blocks were addressed by means of a tuple which defined the cylinder, head, and sector at which they appeared on the
Logical_block_addressing
Theorem about Diophantine approximations
of N numbers, taken as a single N-tuple and point P of the torus T = RN/ZN, the closure of the subgroup <P> generated by P will be finite, or some torus
Kronecker's_theorem
Concept in database systems
relational databases, a foreign key is subject to an inclusion dependency constraint that the tuples consisting of the foreign key attributes in one relation
Foreign_key
Programming language
string: $(s.ToUpper())" | _ => "Object of another type" } } Tuple pattern matching: match (tuple) { | ( 42, _ ) => "42 on first position" | ( _, 42 ) => "42
Nemerle
Rule system for formal languages
of context-free grammars. A context-free grammar G is defined by the 4-tuple G = ( V , Σ , R , S ) {\displaystyle G=(V,\Sigma ,R,S)} , where V is a finite
Context-free_grammar
Grammar formalism
strings can also be generated by a dependency grammar, avoiding the limitations of rewrite systems entirely. A TAG can be defined as a 5-tuple ⟨ Σ , N T , I
Tree-adjoining_grammar
Type of Knowledge Graph Management System
decidability and tractability. Existential rules are also known as tuple-generating dependencies (tgds). An existential rule has the following form: φ ( x )
Vadalog
In software, to have several parent classes
inherits from multiple classes, they are kept in the order specified in the tuple of base classes (however in this case, some classes high in the inheritance
Multiple_inheritance
Purely statistical model of language
Feature engineering Hidden Markov model Longest common substring MinHash n-tuple String kernel Jurafsky, Dan; Martin, James H. (7 January 2023). "N-gram
Word_n-gram_language_model
Microsoft programming language
the arity of the tuple. A 3-tuple would be represented as (A, B, C), where A, B, and C are values of possibly different types. A tuple can be used to store
F Sharp (programming language)
F_Sharp_(programming_language)
Basic operation in the Minimalist Program
This understanding of how structure is generated is constituency-based (as opposed to dependency-based). Dependency grammars (e.g. Meaning-Text Theory, Functional
Merge_(linguistics)
Features in Haskell programming language
-- The type of a three-tuple, representing -- a name, balance, and interest rate account = ("John Smith",102894,5.25) Tuples are commonly used in the
Haskell_features
manipulation of tuples as ValueTuple instances; this also provides for the arbitrary renaming of the tuples' constituent fields (as opposed to Tuple, where the
Comparison of C Sharp and Java
Comparison_of_C_Sharp_and_Java
Computer science concept
operating, including generating spurious or incorrect Outputs. Theoretically, if a failed replica is guaranteed to stop without generating outputs, only F+1
State_machine_replication
General-purpose programming language
the tuple and array types can be written through listing the values, and can be accessed with .index (with tuples) or [index] (with arrays): let tuple: (u32
Rust_(programming_language)
Exponentially decreasing bounds on tail distributions of random variables
cumulant) generating function may be used instead (e.g. a sub-parabolic CGF giving a sub-Gaussian Chernoff bound). Using only the moment generating function
Chernoff_bound
{\displaystyle A=(\Sigma _{1},\Sigma _{2},\ldots ,\Sigma _{n})} denote an n-tuple of (not necessarily pairwise disjoint) alphabets Σ k {\displaystyle \Sigma
History_monoid
Mapping arbitrary data to fixed-size values
one of which is called 3-tuple independence, meaning that every 3-tuple of keys is equally likely to be mapped to any 3-tuple of hash values. A hash function
Hash_function
Set of rules defining correctly structured C++ program
std::execution::sync_wait(), which returns std::optional<std::tuple<Ts...>>. import std; using std::optional; using std::tuple; using std::execution::task; task<int> add(int
C++_syntax
Compiler for Haskell programming language
working with modules, patterns, list comprehensions, operators, records, and tuples. Syntactic sugar for computing with arrows and recursively defined monadic
Glasgow_Haskell_Compiler
Overview of and topical guide to databases
Fred". Very large database (VLDB) – contains an extremely high number of tuples (database rows), or occupies an extremely large physical filesystem storage
Outline_of_databases
^{+})^{*}} .[clarification needed] We define an EPDA by the septuple (7-tuple) M = ( Q , Σ , Γ , δ , q 0 , Q F , σ 0 ) {\displaystyle \,M=(Q,\Sigma ,\Gamma
Embedded_pushdown_automaton
Free and open-source object relational database management system
conflicts between the primary and standby servers, particularly whenever tuples are prematurely deleted from the standby server despite ongoing queries
PostgreSQL
Python object-relational mapping library
supports using a custom URI. ResultSet.config's "distinct" argument accepts a tuple of columns. Provide wrapped cursor objects in Django integration layer.
Storm_(software)
Mathematical concept for comparing objects
yields a convenient way of generating an equivalence relation: given any binary relation R on X, the equivalence relation generated by R is the intersection
Equivalence_relation
Programming language
import std/locks var thr: array[0..4, Thread[tuple[a,b: int]]] L: Lock proc threadFunc(interval: tuple[a,b: int]) {.thread.} = for i in interval.a..interval
Nim_(programming_language)
Automatic creation of ontologies
through the application of bootstrapping methods, which collect relation tuples. In this step, the OL system tries to extend the taxonomic structure of
Ontology_learning
General-purpose programming language
List comprehension – C# 3 LINQ Tuples – .NET Framework 4.0 but it becomes popular when C# 7.0 introduced a new tuple type with language support Nested
C Sharp (programming language)
C_Sharp_(programming_language)
true. ordered logic A logic without weakening and permutation. ordered n-tuple A sequence of elements in which the order of the elements matters, generalizing
Glossary_of_logic
stored such that the position of each element can be computed from its index tuple by a mathematical formula. The simplest type of data structure is a linear
Glossary_of_computer_science
Development environment
ISO/ECMA Eiffel addition (inline agents, new "expanded" semantics, named tuples, Unicode support), refactoring facilities, new way to configure a project
EiffelStudio
Random process independent of past history
finite-length sequences they generate, but control constraints are not compatible with Markov models, since they induce long-range dependencies that violate the Markov
Markov_chain
Subroutine call performed as final action of a procedure
be a tuple involving more than one variable: if so, care must be taken in implementing the assignment statement x ← baz(x) so that dependencies are respected
Tail_call
Origins and events of data
origins and transformations. It supports forensic activities such as data-dependency analysis, error/compromise detection, recovery, auditing and compliance
Data_lineage
Functional programming language
embedded systems based on processes as stateless automata over a sort of tuples of one element mailbox channels where the state is kept by feedback into
Haskell
Type of abstract computing machine
in practical computer science, for educational purposes and reducing dependency on specific hardware architectures. The register machine gets its name
Register_machine
Software optimization technique
manifests lazy evaluation by implementing iterators (lazy sequences) unlike tuple or list sequences. For instance (Python 2): numbers: Iterator[int] = range(10)
Lazy_evaluation
English philosopher and logician (1872–1970)
and the religious outlook serve to impede knowledge and foster fear and dependency, and to be responsible for much of our world's wars, oppression, and misery
Bertrand_Russell
Model of concept hierarchies
2-tuple ( X , Y ) {\displaystyle (X,Y)} concept collections that manifest different well-defined partial orderings. Given as a concept, the 2-tuple (
General_Concept_Lattice
Numerical calculations carrying along derivatives
Then the partial function as well as the partial derivative are evaluated. tuple<float,float> evaluateAndDerive(Expression Z, Variable V) { if isVariable(Z)
Automatic_differentiation
Field of research in computer science
safety and performance overhead. Any running program can be thought of a tuple ( δ , P ) {\displaystyle (\delta ,P)} , where δ {\displaystyle \delta }
Dynamic_software_updating
Programming paradigm based on applying and composing functions
is often included in imperative programming languages, for example the tuple in Python, which is an immutable array, and Object.freeze() in JavaScript
Functional_programming
Indian inventions
Planet. Dundurn Press Ltd. ISBN 1-55002-726-3. Knuth, Donald (2005). Generating All Tuples and Permutations. The Art of Computer Programming. Vol. 4. Addison–Wesley
List of Indian inventions and discoveries
List_of_Indian_inventions_and_discoveries
Process of changing beliefs to take into account a new piece of information
arbitration, the orderings are not on models but on pairs (or, in general, tuples) of models. Many revision proposals involve orderings over models representing
Belief_revision
Concerned with the notion of stability in model theory
{\displaystyle \phi ({\bar {x}},{\bar {y}})} and two infinite sequences of tuples A = ( a ¯ i : i ∈ N ) {\displaystyle A=({\bar {a}}_{i}:i\in \mathbb {N}
Stable_theory
Extension of rough set theory
[consequent], that represent a form of dependency between condition criteria and decision criteria. Procedures for generating decision rules from a decision table
Dominance-based rough set approach
Dominance-based_rough_set_approach
Relationship between elements of two sets
(X,Y,G)} , as normally a proper class cannot be a member of an ordered tuple; or of course one can identify the binary relation with its graph in this
Binary_relation
Use of a GPU for computations typically assigned to CPUs
GPGPU applications have large data sets, high parallelism, and minimal dependency between data elements. There are a variety of computational resources
General-purpose computing on graphics processing units
General-purpose_computing_on_graphics_processing_units
Construction in differential topology
( m ) ) {\displaystyle I=(I(1),I(2),...,I(m))} be a multi-index (an m-tuple of non-negative integers, not necessarily in ascending order), then define:
Jet_bundle
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
Boy/Male
Hindu, Indian
Young Generation
Boy/Male
Indian, Punjabi, Sikh
New Generation
Boy/Male
Muslim
Old generation
Boy/Male
Gujarati, Hindu, Indian, Kannada
Era; Generation
Boy/Male
Biblical
Nativity, generation.
Boy/Male
Indian, Modern
Generations
Boy/Male
Indian
Young Generation
Girl/Female
Indian, Tamil
Generation
Girl/Female
Indian
Generation
Girl/Female
Biblical
Birth, generation.
Girl/Female
Biblical
A generation.
Boy/Male
Biblical, British, English
Nativity; Generation
Boy/Male
Japanese Welsh
Large; generation.
Girl/Female
Biblical
Nativity, generation.
Female
Finnish
Estonian form of Finnish Tuuli, TUULE means "wind."
Boy/Male
Tamil
Young generation
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi
Generation; Coming Generation of Father; Family
Boy/Male
Tamil
Forthcoming generation
Girl/Female
Biblical
Generation, habitation.
Boy/Male
Biblical
Nativity, generation.
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
Girl/Female
Arabic, Muslim
Intention; Design
Girl/Female
Tamil
Vakshana | வாகà¯à®·à®¾à®¨à®¾
Nourishing, River bed, Flame, Oblation
Boy/Male
Arabic, Muslim
Bearer of High Ranking
Girl/Female
Australian, Dutch, Netherlands, Teutonic
Holy; Famous Warrior
Girl/Female
Muslim
Beautiful, Pretty, Moon-faced
Girl/Female
Arabic, Australian
Light
Boy/Male
Hindu, Indian, Marathi, Sanskrit
Victorious Lion
Girl/Female
Indian
The suns glow, Passionate, Fertile
Boy/Male
Tamil
Lord Murugan
Girl/Female
Muslim
Proud
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
TUPLE GENERATING-DEPENDENCY
a.
Having the power of generating, propagating, originating, or producing.
a.
Pertaining to generation, or to the generative organs.
a.
Producing or generating pus.
a.
Having the power of entering, piercing, or pervading; sharp; subtile; penetrative; as, a penetrating odor.
a.
Generating mucus.
a.
Generating or containing pus; purulent.
n.
That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate.
a.
Acute; discerning; sagacious; quick to discover; as, a penetrating mind.
n.
The power of generating.
a.
Windy; generating wind.
n.
Alternate generation. See under Generation.
n.
Origination by some process, mathematical, chemical, or vital; production; formation; as, the generation of sounds, of gases, of curves, etc.
n.
The formation or production of any geometrical magnitude, as a line, a surface, a solid, by the motion, in accordance with a mathematical law, of a point or a magnitude; as, the generation of a line or curve by the motion of a point, of a surface by a line, a sphere by a semicircle, etc.
v. i.
Generation.
a.
Generating phosphorescence; as, phosphorogenic rays.
a.
Generating or causing phlegm.
p. pr. & vb. n.
of Generate
a.
Generating bile.
a.
generating or producing dew.
n.
The act of generating or begetting; procreation, as of animals.