SQLdose

Blog Post

Non-Clustered Index

In my previous blog I explained about clustered index (https://sqldose.wordpress.com/2015/09/20/clustered-index-and-related-interview-questions/ ).
Considering that we are versed with the concept of heap,...

2015-10-04

479 reads

Blog Post

Non-Clustered Index

In my previous blog I explained about clustered index (https://sqldose.wordpress.com/2015/09/20/clustered-index-and-related-interview-questions/ ).
Considering that we are versed with the concept of heap,...

2015-10-04

323 reads

Blog Post

GAM and SGAM

In my previous blog, I tried to explain How SQL Server Manages your data in pages and extents. (Link for...

2015-09-12

829 reads

Blog Post

GAM and SGAM

In my previous blog, I tried to explain How SQL Server Manages your data in pages and extents. (Link for...

2015-09-12

449 reads

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A customer was trying to compare two tables and capture a state as a...

Red Flags in Your Query (T-SQL Tuesday #200)

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When I'm looking at a query, I bet it's bad if I see... a...

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BIT_COUNT II

By Steve Jones - SSC Editor

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I Can't Make You Learn

By Steve Jones - SSC Editor

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Why Your SQL Permissions Disappeared

By deepeshdhake

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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