T-SQL Tuesday Retrospective #004: I/O
Mike Walsh invited us on March 1st 2010 to write about I/O. This abbreviation stands for Input / Output, and is often used as shorthand for persisted storage. Given...
2020-11-11
18 reads
Born SQL with Randolph West
The rule of three, SQL Server on Linux edition
When it comes to Microsoft products, the rule of three — at least as far as I’m concerned — is where you can accomplish the same task in three...
2020-11-10
79 reads
T-SQL Tuesday Retrospective #003: Relationships
In my quest to respond to every T-SQL Tuesday since the dawn of the end of 2009, it was only a matter of time before Rob Farley’s name came...
2020-11-04
29 reads
T-SQL Tuesday Retrospective #002: A Puzzling Situation
For the second T-SQL Tuesday ever — again, hosted by Adam Machanic — we were asked one of three options, and I elected to go with the first one:...
2020-11-02 (first published: 2020-10-28)
320 reads
The T-SQL Tuesday Corollary
T-SQL Tuesday is a fantastic series of blog posts derived from over 130 topics over the past 11 years, inviting bloggers to share their thoughts on a particular theme...
2020-10-21
21 reads
A more considered approach to email signatures
This — like last week’s post — is not about SQL Server or Azure SQL Database. In a way, it hearkens back to a post I wrote a few years...
2020-10-14
38 reads
Read the error message
This post is brought to you — indirectly — from a boss I loved working for, on a project which almost killed me, at a company which I had...
2020-10-07
441 reads
How SQL Server stores data types: sql_variant
This post looks at a curious data type that isn’t really a data type. Instead, sql_variant tries to be all things to all people. As with most things in...
2020-09-30
229 reads
A new malware attack on SQL Server
Tencent Security has released a report (written in Chinese) describing a new malware attack by the name of “MrbMiner” on SQL Server instances exposed to the Internet with passwords that can...
2020-09-23
388 reads
If not me, then who?
[Content Warning: this post contains references to subjects that may trigger a trauma response. Read with caution.] This is not a technical post. I was going to write about...
2020-09-16
55 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