Dennis Cheung is a Senior DBA currently living in Hong Kong, he has been working with SQL server since 2000. He has supported a different version of SQL and loves to learn new technology.

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Improve performance by replacing temp tables with memory optimized tables - Part 3

Welcome to the last part of this series, you can find the previous post here (http://www.sqlservercentral.com/blogs/denniss-sql-blog-1/2017/02/01/improve-performance-by-replacing-temp-tables-with-memory-optimized-tables-part-1/) and here (http://www.sqlservercentral.com/blogs/denniss-sql-blog-1/2017/02/08/improve-performance-by-replacing-temp-tables-with-memory-optimized-tables-part-2/).

Previously we...

2017-02-24 (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;

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