SQL Tutorial for Beginners | SQL Server Replication Types Explained

In this sql tutorial, we will explain some sql server replication types. There are four sql replication types in sql server:

1. Transactional Replication: in sql server, transactional replication replicates changes between two sql database instances by using a snapshot of the sql database and applying changes in real-time as they occur.
2. Snapshot Replication: this sql tutorial will also tell you that snapshot replication replicates data exactly as it appears at a specific time without updating it in the future. Snapshot replication is based on the synchronize-generate principle: a snapshot of data is generated once synchronization occurs.
3. Merge Replication: merge replication helps copy and distribute sql database objects from one SQL Server database instance to another. Merge replication permits both the publisher server (master server) and the subscriber servers (slave servers) to modify the data within the SQL database.
4. Peer-to-Peer (P2P) replication: Peer-to-Peer SQL Server replication helps SQL Server replicate data to multiple slave servers at the same time.
The core difference between merge replication and peer-to-peer replication is that merge replication can have only one publisher server, while in P2P replication, all SQL database nodes are both publishers and subscribers (masters and slaves if you will.)

SQL server replication types are one of the most frequent sql server interview questions to this day, so make sure to educate yourself on them before you embark on your next sql database journey. Be safe, and until next time.

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