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title sys.partitions (Transact-SQL) | Microsoft Docs
ms.custom
ms.date 03/14/2017
ms.prod sql-non-specified
ms.reviewer
ms.suite
ms.technology
database-engine
ms.tgt_pltfrm
ms.topic language-reference
f1_keywords
partitions
partitions_TSQL
sys.partitions_TSQL
sys.partitions
dev_langs
TSQL
helpviewer_keywords
sys.partitions catalog view
ms.assetid 1c19e1b1-c925-4dad-a652-581692f4ab5e
caps.latest.revision 60
author BYHAM
ms.author rickbyh
manager jhubbard

sys.partitions (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-asdb-asdw-pdw-_md]

Contains a row for each partition of all the tables and most types of indexes in the database. Special index types such as Full-Text, Spatial, and XML are not included in this view. All tables and indexes in [!INCLUDEssNoVersion] contain at least one partition, whether or not they are explicitly partitioned.

Column name Data type Description
partition_id bigint Indicates the partition ID. Is unique within a database.
object_id int Indicates the ID of the object to which this partition belongs. Every table or view is composed of at least one partition.
index_id int Indicates the ID of the index within the object to which this partition belongs.

0 = heap
1 = clustered index
2 or greater = nonclustered index
partition_number int Is a 1-based partition number within the owning index or heap. For non-partitioned tables and indexes, the value of this column is 1.
hobt_id bigint Indicates the ID of the data heap or B-tree that contains the rows for this partition.
rows bigint Indicates the approximate number of rows in this partition.
filestream_filegroup_id smallint Applies to: [!INCLUDEssSQL11] through [!INCLUDEssCurrent].

Indicates the ID of the FILESTREAM filegroup stored on this partition.
data_compression tinyint Indicates the state of compression for each partition:

0 = NONE
1 = ROW
2 = PAGE
3 = COLUMNSTORE : Applies to: [!INCLUDEssSQL11] through [!INCLUDEssCurrent]
4 = COLUMNSTORE_ARCHIVE : Applies to: [!INCLUDEssSQL14] through [!INCLUDEssCurrent]

Note: Full text indexes will be compressed in any edition of [!INCLUDEssNoVersion].
data_compression_desc nvarchar(60) Indicates the state of compression for each partition. Possible values for rowstore tables are NONE, ROW, and PAGE. Possible values for columnstore tables are COLUMNSTORE and COLUMNSTORE_ARCHIVE.

Permissions

Requires membership in the public role. For more information, see Metadata Visibility Configuration.

See Also

Object Catalog Views (Transact-SQL)
Catalog Views (Transact-SQL)
Querying the SQL Server System Catalog FAQ