Functional Dependency in DBMS - Shikshaglobe

A functional dependency is a relationship between two attributes in a database. In a functional dependency, the value of one attribute determines the value of another attribute. For example, in a customer database, the customer's address may be functionally dependent on the customer's name. This means that if you know the customer's name, you can determine their address. Functional dependencies are an important part of database design because they help to ensure data integrity.Functional dependency is a database concept that describes the relationship between two attributes in a database. In a functional dependency, one attribute is dependent on another attribute. This means that the value of the first attribute is determined by the value of the second attribute. For example, in a customer database, the customer's address may be dependent on the customer's name. This means that if you know the customer's name, you can determine their address. Functional dependencies are an important part of database design and can help to ensure data integrity.In a database management system (DBMS), functional dependency is a constraint between two sets of attributes in a relation. In other words, functional dependency is a way of expressing relationships between columns in a relational database table. Functional dependencies are an important part of database normalization, which is the process of organizing data to minimize redundancy and improve data integrity.A functional dependency is a relationship between two sets of attributes in a database. In other words, it defines how one attribute is related to another. For example, if we have a database of employees, we might have an employee ID and a name. The functional dependency would be that the employee ID is related to the name. In other words, for each employee ID, there is only one name. This relationship is called a one-to-one relationship.