Copyright © Philip M. Parker, INSEAD. Terms of Use.

RELATIONAL DATA MODEL

Specialty Definition: RELATIONAL DATA MODEL

DomainDefinition

Computing

Relational data model (Or "relational model") A data model introduced by E.F. Codd in 1970, particularly well suited for business data management. In this model, data are organised in tables. The set of names of the columns is called the "schema" of the table. Here is an example table with the schema (account number, amount) and 3 lines. account number amount -------------- --------- 12343243546456 +30000.00 23149875245824 +2345.33 18479827492874 -123.25 The data can be manipulated using a relational algebra. SQL is a standard language for talking to a database built on the relational model (a "relational database"). ["A relational model for large shared data banks" Communications of ACM 13:6, pp 377-387]. (1998-10-05). Source: The Free On-line Dictionary of Computing.

Source: compiled by the editor from various references; see credits.

Top     

Crosswords: RELATIONAL DATA MODEL

Specialty definitions using "RELATIONAL DATA MODEL": E. F. Codd ♦ relational algebra, relational model. (references)

Top     

Frequency of Internet Keywords: RELATIONAL DATA MODEL

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day

relational data model

4
Source: compiled by the editor from various references; see credits.

Top     

Alternative Orthography: RELATIONAL DATA MODEL


Hexadecimal (or equivalents, 770AD-1900s) (references)

52 45 4C 41 54 49 4F 4E 41 4C      44 41 54 41      4D 4F 44 45 4C

Leonardo da Vinci (1452-1519; backwards) (references)

        

Binary Code (1918-1938, probably earlier) (references)

01010010 01000101 01001100 01000001 01010100 01001001 01001111 01001110 01000001 01001100 00100000 01000100 01000001 01010100 01000001 00100000 01001101 01001111 01000100 01000101 01001100

HTML Code (1990) (references)

&#82 &#69 &#76 &#65 &#84 &#73 &#79 &#78 &#65 &#76 &#32 &#68 &#65 &#84 &#65 &#32 &#77 &#79 &#68 &#69 &#76

ISO 10646 (1991-1993) (references)

0052 0045 004C 0041 0054 0049 004F 004E 0041 004C      0044 0041 0054 0041      004D 004F 0044 0045 004C

Encryption (beginner's substitution cypher): (references)

5239463554434948354623835543524749383946

Top     



INDEX

1. Crosswords
2. Expressions: Internet
3. Orthography
4. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.