How distributed transactions work in SQL Server?

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Distributed transactions ensure that data changes within databases on multiple servers are kept in sync within the context of the single T-SQL transaction. This ensures that applications made up of multiple databases on multiple servers are transactionally consistent with each other. 27 февр. 2014 г.

What is distributed transaction in SQL?

A distributed transaction spans two or more databases. As the transaction manager, DTC coordinates the transaction between SQL Server instances, and other data sources. Each instance of the SQL Server database engine can operate as a resource manager.

How does a distributed transaction work?

A distributed transaction is a set of operations on data that is performed across two or more data repositories (especially databases). It is typically coordinated across separate nodes connected by a network, but may also span multiple databases on a single server.

What is distributed transaction coordinator in SQL Server?

The Microsoft Distributed Transaction Coordinator (MSDTC) allows applications to extend or distribute a transaction across two or more instances of SQL Server. The distributed transaction works even when the two instances are hosted on separate computers.

Can SQL Server be distributed database?

A distributed SQL database automatically replicates and distributes data across multiple servers. These databases are strongly consistent and support consistency across availability and geographic zones in the cloud.

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