Notitie
Voor toegang tot deze pagina is autorisatie vereist. U kunt proberen u aan te melden of de directory te wijzigen.
Voor toegang tot deze pagina is autorisatie vereist. U kunt proberen de mappen te wijzigen.
Applies to: 
SQL Server
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
SQL analytics endpoint in Microsoft Fabric
Warehouse in Microsoft Fabric
Contains a row for each data space. This can be a filegroup, partition scheme, or FILESTREAM data filegroup.
| Column name | Data type | Description |
|---|---|---|
| name | sysname | Name of data space, unique within the database. |
| data_space_id | int | Data space ID number, unique within the database. |
| type | char(2) | Data space type: FG = Filegroup FD = FILESTREAM data filegroup FX = Memory-optimized tables filegroup Applies to: SQL Server 2014 (12.x) and later. PS = Partition scheme |
| type_desc | nvarchar(60) | Description of data space type: FILESTREAM_DATA_FILEGROUP MEMORY_OPTIMIZED_DATA_FILEGROUP Applies to: SQL Server 2014 (12.x) and later. PARTITION_SCHEME ROWS_FILEGROUP |
| is_default | bit | 1 = This is the default data space. The default data space is used when a filegroup or partition scheme is not specified in a CREATE TABLE or CREATE INDEX statement. 0 = This is not the default data space. |
| is_system | bit | Applies to: SQL Server 2012 (11.x) and later. 1 = Data space is used for full-text index fragments. 0 = Data space is not used for full-text index fragments. |
Permissions
Requires membership in the public role. For more information, see Metadata Visibility Configuration.
See Also
Data Spaces (Transact-SQL)
Catalog Views (Transact-SQL)
sys.databases (Transact-SQL)
sys.destination_data_spaces (Transact-SQL)
sys.filegroups (Transact-SQL)
sys.partition_schemes (Transact-SQL)
Querying the SQL Server System Catalog FAQ
In-Memory OLTP (In-Memory Optimization)