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What is Replication in Distributed Database System - Lecture 10
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In This Video We Learn What is Replication
Distributed Database System Notes Link:
Data Replication is the process of storing data in more than one site or node.
It is useful in improving the availability of data.
It is simply copying data from a database from one server to another server so that all the users can share the same data without any inconsistency.
The result is a distributed database in which users can access data relevant to their tasks without interfering with the work of others.
Advantages Replication
-To provide a consistent copy of data across all the database nodes.
-To increase the availability of data.
-The reliability of data is increased through data replication.
-Data Replication supports multiple users and gives high performance.
Disadvantages of Replication
-More storage space is needed as storing the replicas of same data at different sites consumes more space.
-Data Replication becomes expensive when the replicas at all different sites need to be updated.
-Maintaining Data consistency at all different sites involves complex measures
Distributed Database System Notes Link:
Data Replication is the process of storing data in more than one site or node.
It is useful in improving the availability of data.
It is simply copying data from a database from one server to another server so that all the users can share the same data without any inconsistency.
The result is a distributed database in which users can access data relevant to their tasks without interfering with the work of others.
Advantages Replication
-To provide a consistent copy of data across all the database nodes.
-To increase the availability of data.
-The reliability of data is increased through data replication.
-Data Replication supports multiple users and gives high performance.
Disadvantages of Replication
-More storage space is needed as storing the replicas of same data at different sites consumes more space.
-Data Replication becomes expensive when the replicas at all different sites need to be updated.
-Maintaining Data consistency at all different sites involves complex measures
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