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Applies to: 
SQL Server
This section describes the catalog views that provide information about spatial data.
sys.spatial_index_tessellations (Transact-SQL)
Represents the information about the tessellation scheme and parameters of each of the spatial indexes.
sys.spatial_indexes (Transact-SQL)
Represents the main index information of the spatial indexes.
sys.spatial_reference_systems (Transact-SQL)
Lists the supported spatial reference systems (SRIDs).