sys-spatial-reference-systems-transact-sql.md

title	sys.spatial_reference_systems (Transact-SQL) | Microsoft Docs
ms.custom
ms.date	06/10/2016
ms.prod	sql
ms.prod_service	database-engine, sql-database
ms.reviewer
ms.technology	system-objects
ms.topic	language-reference
f1_keywords	spatial_reference_systems_TSQL sys.spatial_reference_systems_TSQL sys.spatial_reference_systems spatial_reference_systems
dev_langs	TSQL
helpviewer_keywords	sys.spatial_reference_systems catalog view spatial_reference_systems
ms.assetid	3c9bc120-67c3-463f-9e24-29fd623f25a0
author	stevestein
ms.author	sstein
monikerRange	=azuresqldb-current||>=sql-server-2016||=sqlallproducts-allversions||>=sql-server-linux-2017||=azuresqldb-mi-current

sys.spatial_reference_systems (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-asdb-xxxx-xxx-md]

Lists the spatial reference systems (SRIDs) supported by [!INCLUDEssNoVersion].

Column name	Data type	Description
spatial_reference_id	int	The SRID supported by [!INCLUDEssNoVersion].
authority_name	nvarchar(128)	The authority of the SRID.
authorized_spatial_reference_id	int	The SRID given by the authority named in authority_name.
well_known_text	nvarchar(4000)	The WKT representation of the SRID.
unit_of_measure	nvarchar(128)	The name of the unit of measure.
unit_conversion_factor	float	The length of the unit of measure in meters.

Permissions

[!INCLUDEssCatViewPerm]