Canada Day 2020
It’s Canada Day here, the commemoration of the country’s confederation in 1867. Given events over the last few months such as the worldwide pandemic, followed by a number of...
2020-07-01
11 reads
Born SQL with Randolph West
Unsupported but working versions of SQL Server on Windows Server 2019
One of my hobbies is trying to break technology so that you don’t have to. I don’t consider myself a professional or hobbyist hacker, though if the shoe fits…...
2020-06-24
17 reads
How SQL Server stores data types: UNIQUEIDENTIFIER
This week we’re looking at how the database engine stores GUIDs (globally unique identifiers), specifically known as UNIQUEIDENTIFIER in SQL Server. If you would like to read about storage...
2020-06-17
11 reads
How SQL Server stores data types: floating points
In this post we are looking at how SQL Server stores floating point values (FLOAT and REAL). If you’d like to read the previous posts in this series of...
2020-06-10
193 reads
How should I store currency values in SQL Server?
On Twitter, Michael Dyrynda writes: ?? Never ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever ever...
2020-06-03
321 reads
How SQL Server stores data types: money
In this post we look at how SQL Server stores currency values using the MONEY and SMALLMONEY data types. If you’d like to read the previous posts in this...
2020-05-27
31 reads
An insidious form of SQL injection
As longtime readers know, I am also a software developer (we can’t call them engineers in Canada for legal reasons). I took over a complex codebase last year in...
2020-05-20
277 reads
How SQL Server stores data types: integers and decimals
Last time we looked at the internals of how dates and times are stored in SQL Server. This week we’re going to look at how numbers are stored. This...
2020-05-13
113 reads
Negative identity values don’t suck
A quick(er) post this week, in response to Greg Low’s blog post from a few weeks ago titled “Don’t start identity columns or sequences with large negative values.” Greg...
2020-05-06
216 reads
PASS Summit 2020 pre-con time
In 2018, I entered Speaker Idol at the PASS Summit, and because I forgot to start my timer I was disqualified for running over the five-minute limit (say “five-minute...
2020-04-29
17 reads
Blogs
KDA: Echoes of Deception - Case 6
By Zikato
A cryptic message, a book cipher hidden in art provenance records, and a trail...
Capturing My Own Metrics: #SQLNewBlogger
By Steve Jones
A customer was trying to compare two tables and capture a state as a...
Red Flags in Your Query (T-SQL Tuesday #200)
By Zikato
When I'm looking at a query, I bet it's bad if I see... a...
Forums
BIT_COUNT II
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I Can't Make You Learn
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Why Your SQL Permissions Disappeared
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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 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers