Spatial Data

SQLServerCentral Article

SQL ART: Who's Blocking Who? Visualising SQL Server Blocking With Spatial Geometry

  • Article

Taking SQL art from shamrocks and Easter eggs to something your DBA manager might actually care about. If you've been following my SQL spatial art series — shamrocks, Easter eggs, Christmas trees — you'll know I have a habit of finding increasingly creative misuses for SQL Server's geometry data type. Most of them have been […]

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2026-06-12

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SQLServerCentral Article

SQL Art 2: St Patrick’s Day in SSMS (Shamrock + Pint + Pixel Text)

  • Article

Last time we turned SQL Server into a Christmas tree. Every year around St Patrick's Day I find myself doing something I can't fully justify. This year that thing was using SQL Server's spatial viewer to draw a shamrock and a pint of Guinness. Hope you have a happy St Patrick's Day and a few […]

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2026-03-16

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SQLServerCentral Article

Determining Whether Home Addresses Fall Within a Tornado Polygon Using Spatial Functions

  • Article

Geographic information systems (GIS) play a critical role in emergency response planning and risk assessment. One of the key challenges in this field is determining whether a specific location falls within an area of interest. This capability is especially valuable for property and casualty (P&C) insurers, who need to assess their insured property exposure when severe weather events such as tornadoes occur.

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2025-03-04 (first published: )

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Question of the Day

BIT_COUNT II

In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:

UserID  UserPermissions
15
23
37
4       NULL
What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 4;

See possible answers