Editorials

SQLServerCentral Editorial

All the Tools in Your Toolbox

I recently began writing an article to compare the performance of several window functions to traditional query methods. I began with my favorite function, LAG, but soon found that there were so many other ways to write the query that the article never covered the additional window functions. The article was quite fun to write, […]

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2021-09-18

210 reads

SQLServerCentral Editorial

Unix vs PowerShell

I saw an article on using awk, sed, and grep on Linux. I used to know how to use those, though I was by no means an expert. However, working with a stream of text with an input and output was a valuable skill I've used over and over in my career. There are plenty […]

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2021-09-13

272 reads

SQLServerCentral Editorial

The Leaves Are Changing, But Why?

I've recently moved house from Massachusetts to Oklahoma. Long story. Anyway, sitting in my new office looking out at the trees, some of the leaves are starting to change. Ah, Fall. Lovely Autumn colors... WAIT! Actually, something else is going on. Only a few trees are changing color. Word is, we've been a little dry […]

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2021-09-04

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Forums

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Question of the Day

BIT_COUNT I

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

UserID  UserPermissions
15
23
37
What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 3;

See possible answers