Inspector V1.3 now available
Inspector V1.3 is now available on GitHub.
We have updated the sample report for you to play with which includes the...
2019-01-15
144 reads
Happy New Year, Here are our Most Popular Posts of 2018
Firstly, all of us at SQL Undercover would like to wish you a very Happy New Year and all the...
2018-12-31
234 reads
Quickly Compare Data in Two Tables Using CHECKSUM and CHECKSUM_AGG
There are times when we need to compare two tables and figure out if the data matches. I often see...
2018-12-31 (first published: 2018-12-18)
4,003 reads
Managing Logins and Users Across An Availability Group
What’s the deal with logins and availability groups?
I’m sure that we all, when creating a login that accesses a database...
2018-12-26 (first published: 2018-12-05)
2,263 reads
A curious case of case when and Null values
For some reason I have always written my Case statements using the following logic:
SELECT
CASE
WHEN @Priority = 1 THEN 'Very High'
WHEN @Priority...
2018-12-12 (first published: 2018-11-28)
2,811 reads
High CPU and Query Store, A Story of Spinlock Heartache
This is going to be a quick look at an issue that we recently encountered, I’m not going to go...
2018-12-04 (first published: 2018-11-20)
2,364 reads
T-SQL Tuesday – Non-SQL Server Technologies
So, this month’s T-SQL Tuesday topic is to think about a non-SQL Server technology that we want to learn.
For me,...
2018-11-15 (first published: 2018-11-06)
2,157 reads
Signing Stored Procedures That Access Multiple Databases
A while back I wrote a post, Digitally Signing a Stored Procedure To Allow It To Run With Elevated Permissions
Recently Manish...
2018-11-08 (first published: 2018-10-30)
2,559 reads
Identifying delays between SQL calls using SQL profiler
One of the common goto methods for query specific slowness which can be replicated via an application can be to...
2018-11-05 (first published: 2018-10-24)
2,204 reads
A Play Around With Table Variable Deferred Compilation in SQL 2019
Table variables, they’re nasty, dirty little things that perform about as well as a Robin Reliant in a crosswind, right? ...
2018-10-25 (first published: 2018-10-16)
2,075 reads
Blogs
Upgrading SQL Server Containers on the Laptop
By Steve Jones
I don’t have SQL Server installed on my laptop. In an effort to keep...
How to Find Expensive Queries in Amazon Redshift
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying...
The Notification Trap: How Input Fatigue Is Killing Deep Work in Tech
By gbargsley
If you've been here before, you know this blog is usually about SQL Server,...
Forums
SQL 2019 instance with AG, across 2 Windows 2016 OS servers - OSin-place upgrade
Hi all Can I get some perspective from the community please on performing in-place...
How Long is a Long I/O?
Comments posted to this topic are about the item How Long is a Long...
T-SQL Trigonometric Functions in SQL Server
Comments posted to this topic are about the item T-SQL Trigonometric Functions in SQL...
Question of the Day
How Long is a Long I/O?
In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?
See possible answers