September 2018
Intermediate to advanced
412 pages
11h 12m
English
book
Industrial Internet Application Development
by Alena Traukina, Jayant Thomas, Prashant Tyagi, Veera Kishore Reddipalli
Content preview from Industrial Internet Application Development
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Relational DBMS
A relational DBMS is a table-oriented store based on the relational model (originally described by Edgar F. Codd). Such databases comprise a number of records (entities), each corresponding to a row in a table. The records (entities) contain attribute values.
Relation schemas within a database table are defined by the table name, a fixed number of attributes, and fixed data types. The schemas are the product of normalization in the course of data modeling.
Operations within such databases are performed using a database language—most commonly SQL.
Examples of relational DBMS are Oracle, MySQL, Microsoft SQL Server, PostgreSQL, and DB2.