sys.dm_exec_background_job_queue (Transact-SQL)

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

Returns a row for each query processor job that is scheduled for asynchronous (background) execution.

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

Column name Data type Description
time_queued datetime Time when the job was added to the queue.
job_id int Job identifier.
database_id int Database on which the job is to execute.
object_id1 int Value depends on the job type. For more information, see the Remarks section.
object_id2 int Value depends on the job type. For more information, see the Remarks section.
object_id3 int Value depends on the job type. For more information, see the Remarks section.
object_id4 int Value depends on the job type. For more information, see the Remarks section.
error_code int Error code if the job reinserted due to failure. NULL if suspended, not picked up, or completed.
request_type smallint Type of the job request.
retry_count smallint Number of times the job was picked from the queue and reinserted because of lack of resources or other reasons.
in_progress smallint Indicates whether the job has started execution.

1 = Started

0 = Still waiting
session_id smallint Session identifier.
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 the server.

On SQL Database Premium Tiers requires the VIEW DATABASE STATE permission in the database. On SQL Database Standard and Basic Tiers requires the SQL Database admin account.

Remarks

This view returns information only for asynchronous update statistics jobs. For more information about asynchronous update statistics, see Statistics.

The values of object_id1 through object_id4 depend on the type of the job request. The following table summarizes the meaning of these columns for the different job types.

Request type object_id1 object_id2 object_id3 object_id4
Asynchronous update statistics Table or view ID Statistics ID Not used Not used

Examples

The following example returns the number of active asynchronous jobs in the background queue for each database in the instance of SQL Server.

SELECT DB_NAME(database_id) AS [Database], COUNT(*) AS [Active Async Jobs]  
FROM sys.dm_exec_background_job_queue  
WHERE in_progress = 1  
GROUP BY database_id;  
GO  

See Also

Dynamic Management Views and Functions (Transact-SQL)
Execution Related Dynamic Management Views and Functions (Transact-SQL)
Statistics
KILL STATS JOB (Transact-SQL)