Tracy McKibben

My real name is Tracy McKibben. I’ve been working with database products for over 20 years, starting with FoxBase running on Xenix. Over the years, I’ve worked with all flavors of FoxPro, some Clipper and dBase, and starting somewhere around 1995, SQL Server. I’ve even dabbled with Oracle, though I’ve tried to block out all memories of that experience.

At present, I’m the Senior SQL Server DBA and the DBA Team Supervisor for Pearson VUE. All opinions expressed on this site are my own and do not reflect the opinions of Pearson VUE.
  • Interests: Tech, gadgets, model railroading, photography, and of course SQL Server!

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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;

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