Sage-Tips

What is the difference between synchronization and replication?

Replication implies strongly that there are two or more copies of (all) the data. Synchronization implies that two or more copies of data are being kept up-to-date, but not necessarily that each copy contains all of the data (although this is typically the case for database syncing)

What is the difference between a synchronization task and replication task?

One of the major differences between a Synchronization task and a Replication task is that, in a synchronization task, you can transform the data before loading it to the target. However, in a Replication task, you can replicate the data from source to target without transforming the data.

What is SQL synchronization?

SQL Data Sync is a service that allows synchronizing data across multiple Azure SQL databases and on-premises SQL Server databases. The data synchronization appears between the Hub and individual member database only.

What does database synchronization mean?

data consistency
Database synchronization establishes data consistency between two or more databases, automatically copying changes back and forth. Harmonization of the data over time should be performed continuously. Pulling out data from source (master) database to destination (slave) is the most trivial case.

What is synchronous replication?

Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so there are multiple, current copies of the data. Synchronous replication is mainly used for high-end transactional applications that need instant failover if the primary node fails.

What is replication in DBMS?

Replication is the process of copying data from a central database to one or more databases. The central database is called the publication database because it provides the data for users at other sites. The data in the publication database is copied (replicated) to subscription databases at other locations.

What is SQL replication?

SQL Server replication is a technology for copying and distributing data and database objects from one database to another and then synchronizing between databases to maintain consistency and integrity of the data.

What is the difference between asynchronous and synchronous replication?

Most synchronous replication products write data to primary storage and the replica simultaneously. As such, the primary copy and the replica should always remain synchronized. In contrast, asynchronous replication products copy the data to the replica after the data is already written to the primary storage.

What is the main difference between synchronous and asynchronous?

Synchronous = happens at the same time. Asynchronous = doesn’t happen at the same time.

What is replication in SQL?

Replication is a set of technologies for copying and distributing data and database objects from one database to another and then synchronizing between databases to maintain consistency.

What is the difference between replication and synchronization?

To put it very bluntly: Replication implies strongly that there are two or more copies of (all) the data. Synchronization implies that two or more copies of data are being kept up-to-date, but not necessarily that each copy contains all of the data (although this is typically the case for database syncing)

What is the difference between data sync and standard geo replication?

1 What is the difference between Data Sync and Standard Geo Replication on SQL Azure databases? I understand that Active Geo Replication provides the ability to connect to a replicated database whereas Standard does not allow connections. However, how does Data Sync differ?

Should I use datasync or replication for Azure single/pooled databases?

If you want transaction consistency and higher performance the Replication is the way forward. But if you want to bi directional movement of data you have to use the Data Sync as the Azure Single/pooled databases at this time can only be push subscribers. Also keep in mind other limitations of DataSync:

What is SQL Server management studio transactional replication?

SQL Server Management Studio: View Data Conflicts for Transactional Publications (SQL Server Management Studio) Replication supports two methods of executing code during synchronization On demand script execution is supported for transactional replication and merge replication.