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2. Database normalization - Wikipedia

   en.wikipedia.org/wiki/Database_normalization

   Database normalization is the process of structuring a relational database in accordance with a series of so-called normal forms in order to reduce data redundancy and improve data integrity. It was first proposed by British computer scientist Edgar F. Codd as part of his relational model .

3. Anomaly detection - Wikipedia

   en.wikipedia.org/wiki/Anomaly_detection

   Anomaly detection finds application in many domains including cybersecurity, medicine, machine vision, statistics, neuroscience, law enforcement and financial fraud to name only a few. Anomalies were initially searched for clear rejection or omission from the data to aid statistical analysis, for example to compute the mean or standard deviation.

4. Algorithms for Recovery and Isolation Exploiting Semantics

   en.wikipedia.org/wiki/Algorithms_for_Recovery...

   In computer science, Algorithms for Recovery and Isolation Exploiting Semantics, or ARIES, is a recovery algorithm designed to work with a no-force, steal database approach; it is used by IBM Db2, Microsoft SQL Server and many other database systems. [1] IBM Fellow Chandrasekaran Mohan is the primary inventor of the ARIES family of algorithms. [2]

5. Cardinality (data modeling) - Wikipedia

   en.wikipedia.org/wiki/Cardinality_(data_modeling)

   Codd's steps for organizing database tables and their keys is called database normalization, which avoids certain hidden database design errors (delete anomalies or update anomalies). In real life the process of database normalization ends up breaking tables into a larger number of smaller tables.

6. Fourth normal form - Wikipedia

   en.wikipedia.org/wiki/Fourth_normal_form

   Fourth normal form (4NF) is a normal form used in database normalization. Introduced by Ronald Fagin in 1977, 4NF is the next level of normalization after Boyce–Codd normal form (BCNF). Whereas the second , third , and Boyce–Codd normal forms are concerned with functional dependencies , 4NF is concerned with a more general type of ...

7. Unnormalized form - Wikipedia

   en.wikipedia.org/wiki/Unnormalized_form

   In database normalization, unnormalized form (UNF or 0NF), also known as an unnormalized relation or non-first normal form (N1NF or NF 2), [1] is a database data model (organization of data in a database) which does not meet any of the conditions of database normalization defined by the relational model.

8. Isolation (database systems) - Wikipedia

   en.wikipedia.org/wiki/Isolation_(database_systems)

   Isolation is typically enforced at the database level. However, various client-side systems can also be used. It can be controlled in application frameworks or runtime containers such as J2EE Entity Beans [2] On older systems, it may be implemented systemically (by the application developers), for example through the use of temporary tables.

9. Denormalization - Wikipedia

   en.wikipedia.org/wiki/Denormalization

   Denormalization is a strategy used on a previously-normalized database to increase performance. In computing , denormalization is the process of trying to improve the read performance of a database , at the expense of losing some write performance, by adding redundant copies of data or by grouping data.