what is the distributed database?what are the advantage of distributed database?
A distributed database is a collection of multiple interconnected databases that are spread out across different physical locations while appearing as a single, coherent database to the end users. Data is distributed evenly across the different nodes of the database system to provide better reliability, scalability, and performance.
Advantages of distributed databases include:
1. Improved scalability: Distributing data across multiple nodes allows for greater storage capacity and processing power, enabling the database to accommodate a larger volume of data and more users.
2. High availability and reliability: Data redundancy and fault tolerance in distributed databases help ensure that the system remains operational even if one or more nodes fail.
3. Enhanced performance: Data can be processed locally on the nodes where it resides, reducing the latency associated with accessing a centralized database.
4. Geographic distribution: Distributed databases can support applications that require data to be stored and processed in multiple locations, such as global enterprises or online services with users across the world.
5. Disaster recovery: Distributed databases provide built-in redundancy and failover mechanisms that help prevent data loss and enable quick recovery in case of a disaster.
6. Cost-effective: Distributing data storage and processing across multiple nodes can be more cost-effective than maintaining a large, centralized database infrastructure.