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core.sp_create_snapshot (Transact-SQL)

Inserts a row in the management data warehouse core.snapshots view. This procedure is called every time an upload package starts uploading data to the management data warehouse.

Applies to: SQL Server (SQL Server 2008 through current version).

Topic link icon Transact-SQL Syntax Conventions

core.sp_create_snapshot [ @collection_set_uid = ] 'collection_set_uid'
    , [ @collector_type_uid = ] 'collector_type_uid'
    ,[ @machine_name = ] 'machine_name'
    , [ @named_instance = ] 'named_instance'
    , [ @log_id = ] log_id 
    , [ @snapshot_id = ] snapshot_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.

[ @collector_type_uid = ] 'collector_type_uid'

The GUID for a collector type. collector_type_uid is uniqueidentifier with no default value. To obtain the GUID, query the dbo.syscollector_collector_types 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.

[ @log_id = ] log_id

The unique identifier that maps to the collection set event log on the server that collected the data. log_id is bigint with no default value. To obtain the value for log_id, query the dbo.syscollector_execution_log view in the msdb database.

[ @snapshot_id = ] snapshot_id

The unique identifier for a row that is inserted into the core.snapshots view. snapshot_id is int and is returned as OUTPUT.

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_create_snapshot.

This procedure checks to see if:

  • The collection_set_uid matches an existing entry in the core.source_info_internal table.

  • The collector_type_uid matches an existing entry in the core.supported_collector_types view.

If either of the preceding checks fails, the procedure fails and returns an error.

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

The following example creates a snapshot for the Disk Usage collection set, adds it to the management data warehouse, and returns the snapshot identifier. In the example, the default instance is used.

USE <management_data_warehouse>;
DECLARE @snapshot_id int;
EXEC core.sp_create_snapshot 
    @collection_set_uid = '7B191952-8ECF-4E12-AEB2-EF646EF79FEF', 
    @collector_type_uid = '302E93D1-3424-4BE7-AA8E-84813ECF2419',
    @machine_name = '<computername>',
    @named_instance = 'MSSQLSERVER',
    @log_id = 11, -- ID of the log for the collection set
    @snapshot_id = @snapshot_id OUTPUT;
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