core.sp_update_data_source (Transact-SQL)

THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)noAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse

Updates an existing row or inserts a new row in the management data warehouse core.source_info_internal table. This procedure is called by the data collector run-time component every time an upload package starts uploading data to the management data warehouse.

Topic link icon Transact-SQL Syntax Conventions


core.sp_update_data_source [ @collection_set_uid = ] 'collection_set_uid'  
    ,[ @machine_name = ] 'machine_name'  
    , [ @named_instance = ] 'named_instance'  
    , [ @days_until_expiration = ] days_until_expiration  
    , [ @source_id = ] source_id OUTPUT  


[ @collection_set_uid = ] 'collection_set_uid'
The GUID for the collection set. collection_set_uid is uniqueidentifier, with no default value. To obtain the GUID, query the dbo.syscollector_collection_sets view in the msdb database.

[ @machine_name = ] 'machine_name'
The name of the server that the collection set resides on. machine_name is sysname with no default value.

[ @named_instance = ] 'named_instance'
The name of the instance for the collection set. named_instance is sysname, with no default value.


named_instance must be the fully qualified instance name, which consists of the computer name and the instance name in the form computername\instancename.

[ @days_until_expiration = ] days_until_expiration
The number of days remaining in the snapshot data retention period. days_until_expiration is smallint.

[ @source_id = ] source_id
The unique identifier for the source of the update. source_id is int and is returned as OUTPUT.

Return Code Values

0 (success) or 1 (failure)


Every time an upload package starts uploading data to the management data warehouse, the data collector run-time component calls core.sp_update_data_source. The core.source_info_internal table is updated if one of the following changes has happened since the last upload:

  • A new collection set was added.

  • The value for days_until_expiration has changed.


Requires membership in the mdw_writer (with EXECUTE permission) fixed database role.


The following example updates the data source (in this case the Disk Usage collection set), sets the number of days until expiration, and returns the identifier for the source. In the example, the default instance is used.

USE <management_data_warehouse>;  
DECLARE @source_id int;  
EXEC core.sp_update_data_source   
@collection_set_uid = '7B191952-8ECF-4E12-AEB2-EF646EF79FEF',   
@machine_name = '<computername>',  
@named_instance = 'MSSQLSERVER',  
@days_until_expiration = 10,  
@source_id = @source_id OUTPUT;  

See Also

System Stored Procedures (Transact-SQL)
Data Collector Stored Procedures (Transact-SQL)
Management Data Warehouse