A distributed database is a database in which data is stored across different physical locations, such as multiple computers located in the same physical location or dispersed over a network of interconnected computers. This approach allows for improved performance at end-user worksites by enabling transactions to be processed on many machines, instead of being limited to one. Distributed databases also ensure that data remains up-to-date and current through replication and duplication processes. They are generally easier to scale and aim to achieve high availability by replicating data across multiple physical instances. Distributed databases provide location transparency, meaning that applications do not need to know the exact site location where the data is stored.
Some key features and advantages of distributed databases include:
- Location independence
- Distributed query processing
- Distributed transaction management
- Modular development
- Fast data processing
- High reliability and availability
- Reduced operating cost.
In summary, a distributed database is a powerful solution for storing and managing data across multiple locations, providing improved performance, scalability, and high availability for modern applications and systems.
