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Is your SQL Server running slow and you want to speed it up without sharing server credentials? In my Comprehensive Database Performance Health Check, we can work together remotely and resolve your biggest performance troublemakers in less than 4 hours.

Once you learn my business secrets, you will fix the majority of problems in the future.

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Have you ever opened any PowerPoint deck when you face SQL Server Performance Tuning emergencies? SQL Server Performance Tuning Practical Workshop is my MOST popular training with no PowerPoint presentations and 100% practical demonstrations.

Essentially I share my business secrets to optimize SQL Server performance.

For SQL Server Emergency Help, you can reach out to me at pinal@sqlauthority.com with words URGENT in the email subject line for other services mention “Comprehensive Database Performance Health Check“.

SQL SERVER – How to Write Correlated Subquery?

This is a follow-up blog post to my earlier blog post written about SQL SERVER – Writing Your First Subquery From a Single Table. In the blog post, we discuss how to write a correlated subquery and why it is actually necessary. In a query, a correlated subquery is a subquery that uses values from the outer query. Subqueries are usually running once for each row processed for outer query and that is why they are often inefficient as well.

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SQL SERVER – Writing Your First Subquery From a Single Table

My primary responsibility is to help different organizations with tuning their SQL Server Performance and here is the link to my most popular service SQL Server Performance Health Check. I often encounter complicated performance problems which are not easy to resolve, however, recently during the lunch break, I was asked by Junior developer a question about writing a subquery from a single table by a Junior DBA at the organizations.

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SQL SERVER – Information Message: Cannot shrink file in database to xxxx pages as it only contains yyyy pages.

I often get emails from my blog readers asking various types of clarifications about my own blog. Here is one of the interesting questions from a reader about message Cannot shrink file in the database to xxxx pages as it only contains yyyy pages which he encountered after following my below blog.

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SQL SERVER – Error 21028 : Replication Components are not Installed on This Server

One of my clients, for whom I installed SQL Server and configured AlwaysOn came back to me with an error message. While trying to configure replication they were getting an error message. In this blog, we would learn how to fix error “Microsoft SQL Server Management Studio is unable to access replication components because replication is not installed on this instance of SQL Server”

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How to Create an Empty Table and Fool Optimizer to Believe It Contains Data? – Interview Question of the Week #204

Question: How to Create an Empty Table and Fool Optimizer to Believe It Contains Data?

Answer: Before I answer this question, I must acknowledge that I have never heard this question in my 20 years career before and I must ask you back, where do you come up with these kinds of questions.

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