The relational calculus consists of two calculi, the tuple relational calculus and the domain relational calculus, that is part of the relational model...

Tuple calculus is a calculus that was created and introduced by Edgar F. Codd as part of the relational model, in order to provide a declarative database-query...

In computer science, domain relational calculus (DRC) is a calculus that was introduced by Michel Lacroix and Alain Pirotte as a declarative database...

communicating processes Relational calculus, a calculus for the relational data model Domain relational calculus Tuple calculus Refinement calculus, a way of refining...

, with or without an index. Originally based upon relational algebra and tuple relational calculus, SQL consists of many types of statements, which may...

A relational database (RDB) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. A database management system used...

programming. Whereas relational databases use a relational calculus or relational algebra, with relational operations, such as union, intersection, set difference...

construction Relational calculus Relational database Relational model Theory of relations Triadic relation Tuple relational calculus SQL Datalog Codd's theorem...

technique for relational databases Relational concept, a set of mathematically defined tuples in tuple relational calculus Relational model, a database...

inventor of the relational database approach. It was defined in Codd's 1971 paper "A Data Base Sublanguage Founded on the Relational Calculus". Alpha influenced...

a relational view of data, as in relational databases, with a logical view, as in logic programming. Relational databases use a relational calculus or...

that relational algebra and the domain-independent relational calculus queries, two well-known foundational query languages for the relational model...

relationships, using a set of operations based on the mathematical system of relational calculus (from which the model takes its name). Splitting the data into a...

known as logical calculi. Domain relational calculus, a calculus for the relational data model Functional calculus, a way to apply various types of functions...

logic Relational model, an approach to managing data Relation (database), a component of a relational database Relational algebra Relational calculus Relational...

accessing the stored hierarchy relation". The standard relational algebra and relational calculus, and the SQL operations based on them, are unable to express...

the PRIMARY KEY constraint in SQL). The relational model, as expressed through relational calculus and relational algebra, does not distinguish between...

(for example, spatial databases and engineering databases), the relational calculus had limitations. At that time, a reappraisal of the entire database...

operation on SQL and relational database tables join (Unix), a Unix command similar to relational join Join-calculus, a process calculus developed at INRIA...

technique of translating machine code DARPA Robotics Challenge Domain relational calculus, a database query language Descending reflectivity core, a meteorological...

seminal work on the relational model, equates the expressive power of relational algebra and relational calculus. As the relational model became fashionable...

defined by an expression using the operators of the relational algebra or the relational calculus. Such an expression operates on one or more relations...

object–relational database (ORD), or object–relational database management system (ORDBMS), is a database management system (DBMS) similar to a relational database...

operators. Relational calculus – consists of two calculi, the tuple relational calculus and the domain relational calculus, that are part of the relational model...

QUEL is a relational database query language, based on tuple relational calculus, with some similarities to SQL. It was created as a part of the Ingres...

Database normalization is the process of structuring a relational database in accordance with a series of so-called normal forms in order to reduce data...

database (OODBMS) Object–relational database (ORDBMS) Run Book Automation (RBA) Relational model (RDBMS) Comparison of relational database management systems...

database system Referential integrity Relational algebra Relational calculus Relational model Object–relational database Transaction processing Category...

It initially supported the relational model, but was extended to support object–relational features and non-relational structures like JSON and XML...

Predicate functor logic Quantale Relation Relation construction Relational calculus Relational algebra Residuated Boolean algebra Spatial-temporal reasoning...