Codd's 12 rules and SQL

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Codd's 12 rules and SQL

Codd's 12 rules vs. SQL

Codd's twelve rules are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS). SQL (S-Q-L, "sequel"; Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS).

Similarities between Codd's 12 rules and SQL

Codd's 12 rules and SQL have 4 things in common (in Unionpedia): Edgar F. Codd, IBM System R, Relational database management system, Relational model.

Edgar F. Codd

Edgar Frank "Ted" Codd (19 August 1923 – 18 April 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases and relational database management systems.

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IBM System R

IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974.

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Relational database management system

A relational database management system (RDBMS) is a database management system (DBMS) based on the relational model invented by Edgar F. Codd at IBM's San Jose Research Laboratory.

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Relational model

The relational model (RM) for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd, where all data is represented in terms of tuples, grouped into relations.

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The list above answers the following questions

What Codd's 12 rules and SQL have in common
What are the similarities between Codd's 12 rules and SQL

Codd's 12 rules and SQL Comparison

Codd's 12 rules has 9 relations, while SQL has 173. As they have in common 4, the Jaccard index is 2.20% = 4 / (9 + 173).

References

This article shows the relationship between Codd's 12 rules and SQL. To access each article from which the information was extracted, please visit:

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