What is database management system (DBMS)? Briefly explain different types of DBMS.
What is database management system (DBMS)? Briefly explain different types of DBMS.
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What is database management system (DBMS)? Briefly explain different types of DBMS.
A Database Management System (DBMS) is software that allows users to define, create, manipulate, and manage databases. It provides an interface for users and applications to interact with the database, ensuring data integrity, security, and efficient access.
Different types of DBMS include:
Relational DBMS (RDBMS): Organizes data into tables with rows and columns, and establishes relationships between them using keys. Examples include MySQL, Oracle, and Microsoft SQL Server.
NoSQL DBMS: Designed for handling unstructured, semi-structured, or rapidly changing data. Types include document-oriented (e.g., MongoDB), key-value stores (e.g., Redis), column-oriented (e.g., Cassandra), and graph databases (e.g., Neo4j).
Object-Oriented DBMS (OODBMS): Stores data as objects, allowing complex data structures and relationships to be represented directly. Examples include db4o and ObjectDB.
Hierarchical DBMS: Organizes data in a tree-like structure, where each record has one parent and multiple children. Commonly used in older mainframe systems.
Network DBMS: Extends the hierarchical model by allowing each record to have multiple parents, enabling more flexible relationships.
Each type of DBMS has its advantages and is suited for different use cases and data management requirements.