Blog Posts

Blog Post

Correlated Subqueries vs Derived Tables

Correlated subqueries provide an intuitive syntax for writing queries that return related data. However, they often perform poorly due to needing to execute once for every value they join on....

2019-05-07 (first published: )

1,726 reads

Blog Post

Temporary Staging Tables

Watch this week's video on YouTube
SQL Server Spool operators are a mixed bag. On one hand, they can negatively impact performance when writing data to disk in tempdb. On...

2019-05-07

10 reads

Blog Post

Temporary Staging Tables

Watch this week's video on YouTube
SQL Server Spool operators are a mixed bag. On one hand, they can negatively impact performance when writing data to disk in tempdb. On...

2019-05-07

8 reads

Blog Post

Temporary Staging Tables

Watch this week’s episode on YouTube. SQL Server Spool operators are a mixed bag. On one hand, they can negatively impact performance when writing data to disk in tempdb....

2019-05-07

244 reads

Blogs

Learn about Modern Microsoft Apps in San Diego

By

I wrote about learning today for the editorial: I Can’t Make You Learn. I...

How To Deploy Fabric SQL and Azure SQL Databases with Azure DevOps

By

Fabric has CI/CD built in, but if you've tried to use it for database...

A New Word: Attriage

By

attriage – n. the state of having lost all control over how you feel...

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Forums

SSRS Reminded Me of the Time Microsoft Retired TMG

By Marko Coha

Comments posted to this topic are about the item SSRS Reminded Me of the...

Getting results from a Procedure to join to a query

By bswhipp

I have a need to execute a stored procedure and return the results to...

Upgrade 2016 Standard to 2022 Express

By pdanes

Title pretty much says it all - can this be done? I've tried several...

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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