Feb 2026 Discount: Comprehensive Database Performance Health Check | Testimonials

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Dec16

SQLBits Training Day – SQL Server Performance Tuning Real-World Scenarios

Pinal Dave
SQLAuthority News
SQL Performance, SQLBits
No Comments

I will be presenting a day-long training day at SQLbits Pre-Con on 31 March 2019 London on the topic SQL Server Performance Tuning Real-World Scenarios.

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Dec16

SQL SERVER – Clone Database Using DBCC CLONEDATABASE

Pinal Dave
SQL Performance
SQL Scripts, SQL Server
6 Comments

The client had a requirement that we can’t run any query SELECT queries on the production system. Clone Database Using DBCC CLONEDATABASE.

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Dec15

Why Execution Plan Operator Read More Rows Than Available? – Interview Question of the Week #255

Pinal Dave
SQL Interview Questions and Answers
Execution Plan, SQL Performance, SQL Scripts, SQL Server
No Comments

Question: Why Execution Plan Operator Read More Rows Than Available?

Answer: Statistics.

Now let us learn detailed answer in this blog post.

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Dec14

SQL SERVER – Query Without Join Showing Query Plan With Join

Pinal Dave
SQL Performance
Execution Plan, Query Hint, SQL Joins, SQL Scripts, SQL Server
1 Comment

This question often keeps on coming in my consulting engagements. Let us quickly see the answer about Query Without Join Showing Query Plan With Join.

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Dec13

SQL SERVER – Persisting Sample Percentage for Statistics – PERSIST_SAMPLE_PERCENT

Pinal Dave
SQL Performance
SQL Scripts, SQL Server, SQL Statistics
1 Comment

Recently I got the opportunity to work on a very new feature of Persisting Sample Percentage for Statistics. Let us learn today.

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Dec12

SQL SERVER – List All the Nullable Columns in Database

Pinal Dave
SQL Performance
SQL Column, SQL DMV, SQL NULL, SQL Scripts, SQL Server
4 Comments

Recently during the consulting engagement, I needed to create a query that Lists All the Nullable Columns in Database, which I am sharing.

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Dec11

SQL SERVER – APPROX_COUNT_DISTINCT – Not Always Efficient

Pinal Dave
SQL Performance
SQL Counter, SQL Function, SQL Scripts, SQL Server, SQL Server 2019
No Comments

After a lot of testing, I figured out that the newly introduced function is not always efficient. A newly-introduced function APPROX_COUNT_DISTINCT.

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SQL SERVER – 2008 – 2005 – Find Longest Running Query – TSQL – Part 2

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SQL SERVER – Shrinking NDF and MDF Files – A Safe Operation

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SQLAuthority News – Download Cumulative update package 3 for SQL Server 2008

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Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 22 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.


Comprehensive Database Performance Health Check

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.


SQL Server Performance Tuning Practical Workshop

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.


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