What is functional Dependency?



Suraj Said

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Functional dependency is a property of a database that defines the relationship between two attributes in a table.
It states that the value of one attribute determines the value of another attribute.
For example, if an employee's ID is known, the employee's name can be determined from the database. This is represented as "ID -> Name". This functional dependency is used to ensure the accuracy and consistency of data in a database.



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