The relational model (RM) is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in...

A relational database (RDB) is a database based on the relational model of data, as proposed by E. F. Codd in 1970. A Relational Database Management System...

database model: objects, classes and inheritance are directly supported in database schemas and in the query language. Also, as with pure relational systems...

database model is the relational model, which uses a table-based format. Common logical data models for databases include: Hierarchical database model This...

data model or structure: navigational, SQL/relational, and post-relational. The two main early navigational data models were the hierarchical model and...

proposed by British computer scientist Edgar F. Codd as part of his relational model. Normalization entails organizing the columns (attributes) and tables...

in order to retrieve data. When the relational database model emerged, one criticism of hierarchical database models was their close dependence on application-specific...

an abstract data model, that defines a data or information structure that can be implemented in a database, typically a relational database. Entity–relationship...

In database theory, relational algebra is a theory that uses algebraic structures for modeling data and defining queries on it with well founded semantics...

model Hierarchical model Network model Relational model Concept-oriented model Star schema A data structure diagram (DSD) is a diagram and data model...

Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between a relational database...

Information Modeling Relational Model Relational Model/Tasmania Generic data models are generalizations of conventional data models. They define standardized...

"non-relational") refers to a type of database design that stores and retrieves data differently from the traditional table-based structure of relational databases...

Relational models theory (RMT) is a theory of interpersonal relationships, authored by anthropologist Alan Fiske and initially developed from his fieldwork...

Object–relational impedance mismatch is a set of difficulties going between data in relational data stores and data in domain-driven object models. Relational...

with Edgar F. Codd's relational model for database management. He left IBM in 1983 and has written extensively of the relational model, in association with...

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

languages to use Edgar F. Codd's relational model. The model was described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data...

key–value models are examples of data models that may be supported by a multi-model database. The relational data model became popular after its publication...

Statistical relational learning (SRL) is a subdiscipline of artificial intelligence and machine learning that is concerned with domain models that exhibit...

The nested set model is a technique for representing nested set collections (also known as trees or hierarchies) in relational databases. It is based...

systems based on E.F. Codd's relational database model were available, though HELP was much later ported to a relational architecture and commercialized...

Codd as part of the relational model, in order to provide a declarative database-query language for data manipulation in this data model. It formed the inspiration...

data model (organization of data in a database) which does not meet any of the conditions of database normalization defined by the relational model. Database...

for IBM, invented the relational model for database management, the theoretical basis for relational databases and relational database management systems...

pp. 14–5 Chandler & Munday 2011c, relational models Schramm 1971, p. 14. Chandler & Munday 2011c, relational models. Babe 2015, pp. 115, 128. Schramm...

meaning in model theory; see interpretation (model theory). In database theory, structures with no functions are studied as models for relational databases...

1970s before being widely replaced by relational databases in the 1980s. While the hierarchical database model structures data as a tree of records, with...

"Further Normalization of the Data Base Relational Model" in 1971, a year after Codd defined 1NF in "A Relational Model of Data for Large Shared Data Banks"...

moving data from a non-relational (or NoSQL) database, such as one using a hierarchical or document-oriented model, to a relational database. A database...