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sys.dm_exec_background_job_queue (Transact-SQL)

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Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW)

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

Note

To call this from Azure Synapse Analytics or Analytics Platform System (PDW), use the name sys.dm_pdw_nodes_exec_background_job_queue. This syntax is not supported by serverless SQL pool in Azure Synapse Analytics.

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 Synapse Analytics, Analytics Platform System (PDW)

The identifier for the node that this distribution is on.

Permissions

On SQL Server and SQL Managed Instance, requires VIEW SERVER STATE permission.

On SQL Database Basic, S0, and S1 service objectives, and for databases in elastic pools, the server admin account, the Microsoft Entra admin account, or membership in the ##MS_ServerStateReader## server role is required. On all other SQL Database service objectives, either the VIEW DATABASE STATE permission on the database, or membership in the ##MS_ServerStateReader## server role is required.

Permissions for SQL Server 2022 and later

Requires VIEW SERVER PERFORMANCE STATE permission on the server.

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