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Home/Technology & IT/Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed.

Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed.

In relational databases, there is such a thing as normalization, which is a database design method that allows reducing the database to minimize redundancy. Redundancy of data creates prerequisites for the appearance of various anomalies, reduces performance, and makes data management not flexible and not very convenient. An anomaly is a case when some data in one place does not correspond to what seems to be precisely the same data in another place. There are several normal forms of databases, to the structure of which it is possible to bring the database during design in order to avoid anomalies: 1NF, 2NF, 3NF, 4NF, 5NF, BCNF, DKNF.

A database is considered normalized if it is in at least a third normal form (3NF). It is worth noting that converting a database to some specific normal form requires that it is already in its previous normal form. 3NF requires the absence of a transitive dependency – it is the dependence of non-key columns on the values of other non-key columns. In this case, the requirements of the first and second forms must be observed: there must be no duplicate rows in the table; an atomic value is stored in each cell of the table; the column stores data of the same type; there are no arrays and lists in any form; all non-key columns in a table must depend on a complete key.

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Academic.Tips. (2022) 'Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed'. 9 December.

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Academic.Tips. (2022, December 9). Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed. https://academic.tips/question/normalization-is-a-key-concept-in-creating-a-database-define-normalization-and-list-two-anomalies-that-can-occur-if-a-database-table-is-not-properly-normalized-be-sure-to-include-the-issues-that-cou/

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Academic.Tips. 2022. "Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed." December 9, 2022. https://academic.tips/question/normalization-is-a-key-concept-in-creating-a-database-define-normalization-and-list-two-anomalies-that-can-occur-if-a-database-table-is-not-properly-normalized-be-sure-to-include-the-issues-that-cou/.

1. Academic.Tips. "Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed." December 9, 2022. https://academic.tips/question/normalization-is-a-key-concept-in-creating-a-database-define-normalization-and-list-two-anomalies-that-can-occur-if-a-database-table-is-not-properly-normalized-be-sure-to-include-the-issues-that-cou/.


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Academic.Tips. "Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed." December 9, 2022. https://academic.tips/question/normalization-is-a-key-concept-in-creating-a-database-define-normalization-and-list-two-anomalies-that-can-occur-if-a-database-table-is-not-properly-normalized-be-sure-to-include-the-issues-that-cou/.

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"Normalization is a key concept in creating a database. Define normalization and list two anomalies that can occur if a database table is not properly normalized. Be sure to include the issues that could affect the data if the anomaly is not fixed." Academic.Tips, 9 Dec. 2022, academic.tips/question/normalization-is-a-key-concept-in-creating-a-database-define-normalization-and-list-two-anomalies-that-can-occur-if-a-database-table-is-not-properly-normalized-be-sure-to-include-the-issues-that-cou/.

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