sys.dm_tran_active_transactions (Transact-SQL)

THIS TOPIC APPLIES TO: yesSQL Server (starting with 2008)yesAzure SQL DatabaseyesAzure SQL Data Warehouse yesParallel Data Warehouse

Returns information about transactions for the instance of SQL Server.

Note

To call this from Azure SQL Data Warehouse or Parallel Data Warehouse, use the name sys.dm_pdw_nodes_tran_active_transactions.

Column Name Data Type Description
transaction_id bigint ID of the transaction at the instance level, not the database level. It is only unique across all databases within an instance but not unique across all server instances.
name nvarchar(32) Transaction name. This is overwritten if the transaction is marked and the marked name replaces the transaction name.
transaction_begin_time datetime Time that the transaction started.
transaction_type int Type of transaction.

1 = Read/write transaction

2 = Read-only transaction

3 = System transaction

4 = Distributed transaction
transaction_uow uniqueidentifier Transaction unit of work (UOW) identifier for distributed transactions. MS DTC uses the UOW identifier to work with the distributed transaction.
transaction_state int 0 = The transaction has not been completely initialized yet.

1 = The transaction has been initialized but has not started.

2 = The transaction is active.

3 = The transaction has ended. This is used for read-only transactions.

4 = The commit process has been initiated on the distributed transaction. This is for distributed transactions only. The distributed transaction is still active but further processing cannot take place.

5 = The transaction is in a prepared state and waiting resolution.

6 = The transaction has been committed.

7 = The transaction is being rolled back.

8 = The transaction has been rolled back.
transaction_status int Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
transaction_status2 int Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
dtc_state int Applies to: Azure SQL Database (Initial release through current release).

1 = ACTIVE

2 = PREPARED

3 = COMMITTED

4 = ABORTED

5 = RECOVERED
dtc_status int Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
dtc_isolation_level int Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
filestream_transaction_id varbinary(128) Applies to: Azure SQL Database (Initial release through current release).

Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
pdw_node_id int Applies to: Azure SQL Data Warehouse, Parallel Data Warehouse

The identifier for the node that this distribution is on.

Permissions

On SQL Server, requires VIEW SERVER STATE permission.
On SQL Database Premium Tiers, requires the VIEW DATABASE STATE permission in the database. On SQL Database Standard and Basic Tiers, requires the Server admin or an Azure Active Directory admin account.

See Also

sys.dm_tran_session_transactions (Transact-SQL)
sys.dm_tran_database_transactions (Transact-SQL)
Dynamic Management Views and Functions (Transact-SQL)
Transaction Related Dynamic Management Views and Functions (Transact-SQL)