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A database management system is a system software. Database Management Systems (DBMS) are software systems that are used to store, retrieve, and execute data queries. A database management system (DBMS) acts as a bridge between an end-user and a database, allowing users to create, read, update, and delete data in the database.
DBMS optimizes data organization by employing a database schema design technique known as normalization, which divides a large table into smaller tables when any of its attributes has value redundancy. DBMS have several advantages over traditional file systems, including greater flexibility and a more complex backup system.
Database management systems can be classified based on a number of factors, including the data model, database distribution, and user numbers. The most common DBMS software types are relational, distributed, hierarchical, object-oriented, and network.