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)...

certain tuples be present in a relation. Therefore, a multivalued dependency is a special case of tuple-generating dependency. The multivalued dependency plays...

{\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...

both tuple-generating dependencies and equality-generating dependencies. Embedded dependencies can express functional dependencies, join dependencies, multivalued...

classification of dependencies: functional dependencies are equality-generating dependencies whereas inclusion dependencies are tuple-generating dependencies. Enforcing...

recognized dependency types are: Functional dependency Join dependency Multivalued dependency Tuple-generating dependency Transitive dependency Equality-generating...

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,...

programming Conjunctive query DatalogZ Disjunctive Datalog Flix SWRL Tuple-generating dependency (TGD), a language for integrity constraints on relational databases...

operators. New tuples can supply explicit values or be derived from a query. Similarly, queries identify tuples for updating or deleting. Tuples by definition...

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...

left-side tuple has a suitable constructor. typedef std::tuple <int , double, string > tuple_1 t1; typedef std::tuple <char, short , const char * > tuple_2 t2...

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...

string: $(s.ToUpper())" | _ => "Object of another type" } } Tuple pattern matching: match (tuple) { | ( 42, _ ) => "42 on first position" | ( _, 42 ) => "42...

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...

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...

decidability and tractability. Existential rules are also known as tuple-generating dependencies (tgds). An existential rule has the following form: φ ( x )...

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...

Feature engineering Hidden Markov model Longest common substring MinHash n-tuple String kernel Bengio, Yoshua; Ducharme, Réjean; Vincent, Pascal; Janvin...

relational databases, a foreign key is subject to an inclusion dependency constraint that the tuples consisting of the foreign key attributes in one relation...

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...

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...

This understanding of how structure is generated is constituency-based (as opposed to dependency-based). Dependency grammars (e.g. Meaning-Text Theory, Functional...

-- 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...

manipulation of tuples as ValueTuple instances; this also provides for the arbitrary renaming of the tuples' constituent fields (as opposed to Tuple, where the...

{\displaystyle A=(\Sigma _{1},\Sigma _{2},\ldots ,\Sigma _{n})} denote an n-tuple of (not necessarily pairwise disjoint) alphabets Σ k {\displaystyle \Sigma...

working with modules, patterns, list comprehensions, operators, records, and tuples. Syntactic sugar for computing with arrows and recursively-defined monadic...

supports using a custom URI. ResultSet.config's "distinct" argument accepts a tuple of columns. Provide wrapped cursor objects in Django integration layer....

Fred". Very large database (VLDB) – contains an extremely high number of tuples (database rows), or occupies an extremely large physical filesystem storage...

Expressions of the tuple and array types can be written through listing the values, and can be accessed with .index or [index]: let tuple: (u32, bool) = (3...

^{+})^{*}} .[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...