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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 – Adding Reference Data to Master Data Services – Notes from the Field #081

[Note from Pinal]: This is a 81th episode of Notes from the Field series. Master Data Services is one of the most important, but a very little explored feature of SQL Server. If you have been reading this blog, when it is about BI, I always take help from LinchPin People who are BI experts. I requested Reeves from LinchiPin people to help me answer this unique question. Let us learn in this blog post how to add reference data to Master Data Services (MDS).

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Interview Question of the Week #020 – What is the Difference Between DISTINCT and GROUP BY?

Question: What is the Difference Between DISTINCT and GROUP BY? Answer: A DISTINCT and GROUP BY usually generate the same query plan, so performance should be the same across both query constructs. GROUP BY should be used to apply aggregate operators to each group. If all you need is to remove duplicates,…
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SQL SERVER – Service Pack Error – The User Data directory in the registry is not valid. Verify DefaultData key under the instance hive points to a valid directory

As a good SQL Server DBA, I always keep updating my SQL Server on my all VMs with the latest service pack available. During my last installation of service pack 2 on SQL Server 2012, I got below error. The User Data directory in the registry is not valid. Verify…
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