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relational database

re·la·tion·al da·ta·base
R r

Transcription

    • US Pronunciation
    • US IPA
    • [ri-ley-shuh-nl dey-tuh-beys]
    • /rɪˈleɪ ʃə nl ˈdeɪ təˌbeɪs/
    • US Pronunciation
    • US IPA
    • [ri-ley-shuh-nl dey-tuh-beys]
    • /rɪˈleɪ ʃə nl ˈdeɪ təˌbeɪs/

Definitions of relational database words

  • noun relational database an electronic database comprising multiple files of related information, usually stored in tables of rows (records) and columns (fields), and allowing a link to be established between separate files that have a matching field, as a column of invoice numbers, so that the two files can be queried simultaneously by the user. 2
  • noun Definition of relational database in Technology (database)   (RDBMS - relational database management system) A database based on the relational model developed by E.F. Codd. A relational database allows the definition of data structures, storage and retrieval operations and integrity constraints. In such a database the data and relations between them are organised in tables. A table is a collection of rows or records and each row in a table contains the same fields. Certain fields may be designated as keys, which means that searches for specific values of that field will use indexing to speed them up. Where fields in two different tables take values from the same set, a join operation can be performed to select related records in the two tables by matching values in those fields. Often, but not always, the fields will have the same name in both tables. For example, an "orders" table might contain (customer_id, product_code) pairs and a "products" table might contain (product_code, price) pairs so to calculate a given customer's bill you would sum the prices of all products ordered by that customer by joining on the product-code fields of the two tables. This can be extended to joining multiple tables on multiple fields. Because these relationships are only specified at retreival time, relational databases are classed as dynamic database management system. The first commercial RDBMS was the Multics Relational Data Store, first sold in 1978. 0
See all 2 definitions of relational database

Information block about the term

Origin of relational database

First appearance:

before 1970
One of the 2% newest English words
First recorded in 1970-75

Historical Comparancy

Parts of speech for Relational database

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Relational database

relational database popularity

This term is known only to a narrow circle of people with rare knowledge. Only 27% of English native speakers know the meaning of this word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

relational database usage trend in Literature

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