Centro please wait updating databases

Centro please wait updating databases

This guide describes the locking and row versioning mechanisms the SQL Server Database Engine uses to ensure the physical integrity of each transaction and provides information on how applications can control transactions efficiently.A transaction is a sequence of operations performed as a single logical unit of work.

In these cases it is a good idea to give some indication to the user that you are in fact still performing tasks and that their browser hasn’t simply locked up.When a transaction is started on a connection, all Transact-SQL statements executed on that connection are part of the transaction until the transaction ends.However, under a multiple active result set (MARS) session, a Transact-SQL explicit or implicit transaction becomes a batch-scoped transaction that is managed at the batch level.This can be specified by using either Transact-SQL statements or database application programming interface (API) functions.The system must also be able to correctly handle errors that terminate a transaction before it completes.

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When the batch completes, if the batch-scoped transaction is not committed or rolled back, it is automatically rolled back by SQL Server.

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