How do I enforce data integrity rules in my database?

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滥情空心
滥情空心 2021-01-20 04:07

I\'m designing this collection of classes and abstract (MustInherit) classes…

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  •  旧时难觅i
    2021-01-20 04:53

    Enforcing Data Integrity in Databases Basically, there are four primary types of data integrity: entity, domain, referential and user-defined.

    Entity integrity applies at the row level; domain integrity applies at the column level, and referential integrity applies at the table level.

    1. Entity Integrity ensures a table does not have any duplicate rows and is uniquely identified.

    2. Domain Integrity requires that a set of data values fall within a specific range (domain) in order to be valid. In other words, domain integrity defines the permissible entries for a given column by restricting the data type, format, or range of possible values.

    3. Referential Integrity is concerned with keeping the relationships between tables synchronized.

    @Zack: You can also check out this blog to read more details about data integrity enforcement, here- https://www.bugraptors.com/what-is-data-integrity/

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