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Drop All Redundant Indexes In Every Database All At Once

Redundant indexes in SQL Server are a phenomenon that is more common than I’d like to admit. I see it in quite a lot of shops. Meaning, that there’s still a significant target audience for this blog post!

This article published by Brent Ozar is very informative about redundant/duplicate indexes, what they mean, why they’re bad, and what should be done with them.

Also, a few years ago, Guy Glantser published a post about dropping redundant indexes. It’s very useful for finding all redundant indexes within all tables in a specific database.

But what both of these articles are missing – is the ability to easily generate Drop/Disable commands for these redundant indexes.

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Resolved: Login failed for user NT AUTHORITY\ANONYMOUS LOGON – Delegation Step-by-Step

Sometimes when trying to access a linked server, you’d get an error saying “Login failed for user NT AUTHORITY\ANONYMOUS LOGON”. This happens because you’re connected using Windows authentication, and SQL Server fails to “forward” your credentials to the linked server.

Hopefully, with this blog post, I’ll provide you with an easy-to-understand step-by-step guide, which would help you resolve the issue the right way, without any workarounds.

Read More »Resolved: Login failed for user NT AUTHORITY\ANONYMOUS LOGON – Delegation Step-by-Step

Could SQL Injection be dangerous even when perfectly safe?

SQL Injection is something I would expect any reader of my blog to be familiar with. Despite being one of the oldest database attack methods, it still persists for decades on the OWASP Top Ten list of critical security risks to web applications.

In fact, instead of dying out, it only seems to be getting more clever and even automated. With “hacker bots” scouring the web and automatically probing for injection vulnerabilities to exploit. I know, as I’ve once been a victim of such attacks in the past.

But today I’m not actually going to talk about that. Today, I’m going to ask the question: When is SQL Injection dangerous, even if it’s perfectly safe?

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It is 10 PM, do you know where your pages are?

Back in April 2020, I created an open-source project called “SQL Server Page Allocation Reports“. It consisted of a set of SQL queries and some Power BI reports that can be used for visualizing the size and locations of your data and transaction log pages.

Well, recently I also added SSMS Custom Reports into the mix. So, it’s time to revisit this project and see what’s new!

Read More »It is 10 PM, do you know where your pages are?

The Asynchronous Ledger Trick for Fast SQL Server Insert, Update and Delete Processes

Do you find yourself facing performance problems and long lock chains caused by very frequent INSERT, UPDATE, or DELETE statements being executed on a table? Check out this neat trick that could help you out and make all the difference in the world.

Read More »The Asynchronous Ledger Trick for Fast SQL Server Insert, Update and Delete Processes