Getting Around Error 40510 to Configure Resource Governor in Azure SQL Managed Instance

One feature I’ve not appreciated enough in the past in SQL Server is Resource Governor.

Resource Governor allows you to fix problems with Memory Grants in a simple way, as Erik Darling recommends. It also lets you classify sessions into groups and limit the maximum number of simultaneous requests, and /or limit the degree of parallelism if you need more CPU for other workloads. While this will slow down the queries you classify into that group, this can be super useful, especially if you’re already using something like Snapshot isolation to prevent blocking or you are using a read-only replica.

In Azure SQL Managed Instance, you get to use Resource Governor, even in the General Purpose tier. This is awesome.

Just make sure you execute commands in the context of the master database, or you’ll get error 40510: Statement 'ALTER RESOURCE GOVERNOR' is not supported in this version of SQL Server.

It is supported! Just USE master; before running your commands.

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How Many Features Are Missing from Azure SQL Managed Instance?

Spoiler: a large amount of features from SQL Server 2022 are missing from Azure SQL Managed Instance. Some major features are missing that were introduced in SQL Server 2019– and here we are just a few weeks away from 2024.

But Microsoft’s top-line marketing claims about Azure SQL Managed Instance remain that ‘it’s always up to date with the latest SQL features and functionality.’

Let’s dig into some of the documented highlights on missing features, so you can decide for yourself what to think of that statement.

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Should We Do Index Maintenance on an Azure SQL Managed Instance or Azure SQL Database?

Have you ever received advice that was technically correct, but it was too hard to understand?

I think of this as “accidental bad advice,” because it can lead to confusion and bad outcomes. There’s a LOT of accidental bad advice out there on index maintenance for SQL Server and cloud versions like Azure SQL, even in the official documentation.

In this post I’m answering a common index maintenance question, and we’re going to keep it simple.

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Learn Azure SQL with One Free Learning Path

Have you been meaning to learn about SQL Server in the Azure cloud, but never seem to get around to it? It’s easy to be overwhelmed and not know where to begin.

I recommend you start with the Azure SQL Fundamentals Learning Path.

I stepped through this training this week and WOW, this is an incredibly high quality free course, complete with hands-on exercises in an online sandbox. I wish I’d done this sooner!

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PASS Summit 2018 - Day 1 Keynote Announcements

Good morning from Seattle, at the Summit for the Professional Association of SQL Server.

I’m lucky enough to be sitting at the blogger table this morning, watching the keynote of announcements.

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