SQL Server Performance Tuning Expert - SQL Authority with Pinal Dave

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.

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.

An Index Reduces Performance of SELECT Queries (Video)
3 Common Mistakes to Kill SQL Server Performance (Video)
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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“.

Feb19

SQL SERVER – Updating Data into ColumnStore Index with SQL Server 2012

Pinal Dave

SQL Performance

ColumnStore Index, SQL Index, SQL Scripts, SQL Server

Off late I have been writing tons of content working with SQL Server 2016. Some of the cool capabilities was to introduce the ability to update a ColumnStore index. This was also covered in the SQL SERVER 2016: Updating Non-Clustered ColumnStore Index Enhancement earlier. One of the readers asked me an interesting question about being inside SQL Server 2012 and they wanted to write / update their data on the ColumnStore enabled system and what was the process for them. The email started saying they were getting the following error.

Feb18

SQL SERVER – Attaching and Restoring Database in Clustering Generates An Error – Notes from the Field #115

Pinal Dave

SQL Tips and Tricks

AlwaysOn, Notes from the Field, SQL Server, SQL Server Cluster

No Comments

[Notes from Pinal]: In my career, I have seen many database experts who are great with what they do, but when they have to work with clustering or AlwaysOn solutions, they usually avoid it. The reason is that there are not many experts who know this subject well enough. One thing I always personally felt that the documentation is also not widely available when it is about clustering. If one receives some error, they are usually lost. This is when I reached out to Eduardo and asked him what can we do to if we face error while attaching or restoring database in clustering environment in SQL Server.

Feb17

SQL SERVER – FIX Error 18456, Severity: 14, State: 6. Login failed for user

Pinal Dave

SQL Tips and Tricks

SQL Connection, SQL Error Messages, SQL Log, SQL Server

One of the blog which I wrote earlier was also on Login failed for user with state 58. Let us see how to FIX Error 18456.

After reading that blog, one of the blog reader contacted me and told that she is getting state 6. I thought this error are very common and is important to demystify some of the reasons for the same. I have asked completed error message to assist him. Here is the message she shared:

Error: 18456, Severity: 14, State: 6.

Feb16

SQL SERVER – View Dependencies on SQL Server: Hard & Soft Way

Pinal Dave

SQL

Devart, SQL Constraint and Keys, SQL Scripts, SQL Server, SQL Utility

As an independent database consultant, I often face a challenge when analyzing the performance of SQL Server instances, which I see for the first time in my life. In many cases, this may seem a difficult task, because in order to fix something you must first understand the database structure. A great many of the companies do not document their database. And even if documentation exists, it is rarely updated. As a result, we have the following situation – documentation is either obsolete, or does not reflect the actual state of things. Let understand SQL SERVER – View Dependencies.

Feb15

SQL SERVER – ShowPlan XML Additions for ColumnStore Indexes

Pinal Dave

SQL Performance

ColumnStore Index, SQL Index, SQL Server

The last time when I wrote about ColumnsStore FAQ, one of the readers had an interesting question. The question was around how to identify the traits of using a column store inside an execution plan. The very thought got me thinking. I was thinking where to start. I remembered that ShowPlan XML was a great way to see some of these attributes. The very next question that came up, what should one look forward to inside a ShowPlan XML.

Feb14

Interview Question of the Week #058 – What is the Difference Among DECIMAL, FLOAT and NUMERIC Datatype?

Pinal Dave

SQL Interview Questions and Answers

SQL Datatype, SQL Server

Question: What is the Difference Among DECIMAL, FLOAT and NUMERIC Datatype? Let us learn more.

Feb13

SQL SERVER – FIX Error 18456, Severity: 14, State: 58. Login failed for user

Pinal Dave

SQL Tips and Tricks

SQL Error Messages, SQL Log, , SQL Server

One of the most common and searched SQL Server failure is around “Logins”. Login failed for user has always been tricky and interesting to troubleshoot. I don’t think there is a silver bullet to easily troubleshoot the same. With every version of SQL Server, there are enhancements made in error reporting, which try to make life on DBA’s easy. In previous version of SQL, whenever there is a login failed, it would print message in the SQL ERRORLOG along with the state of login failed. It was difficult for a DBA to find the cause further and it all boiled down to doing a number of permutations and combinations of resolution over the internet. Let us see how to FIX Error 18456.

Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 24 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 14 SQL Server database books and 104 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at pinal@sqlauthority.com.

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).

Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.