Gagnasafnsstjórnunarkerfi

Gagnasafnsstjórnunarkerfi, often abbreviated as DBMS, is a software system designed for creating, managing, and interacting with databases. It acts as an interface between the user or application and the actual database, allowing for efficient data storage, retrieval, and manipulation. A DBMS provides a structured way to organize information, ensuring data integrity and security.

Key functions of a DBMS include defining the database structure (schema), inserting new data, updating existing data, and deleting data. It also handles concurrent access, allowing multiple users to interact with the database simultaneously without compromising its consistency. Security features are crucial, enabling control over who can access and modify specific data. Furthermore, a DBMS facilitates data backup and recovery, protecting against data loss due to hardware failures or other disasters. Common types of DBMS include relational, hierarchical, network, and object-oriented, each with its own approach to data organization and relationships. Examples of popular DBMS software include MySQL, PostgreSQL, Oracle Database, and Microsoft SQL Server.