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Apr23

SQL SERVER – Understanding new Index Type of SQL Server 2005 Included Column Index along with Clustered Index and Non-clustered Index

Pinal Dave
SQL Performance
SQL Constraint and Keys, SQL Index, SQL Scripts, SQL Server
40 Comments

Clustered index and non-clustered index compared: how many you can have, how each stores data, and where the SQL Server 2005 included column index fits.

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Apr22

SQL SERVER – Raid Configuration – RAID 10

Pinal Dave
SQL Performance
Database, SQL Data Storage, SQL Utility
24 Comments

Which RAID do I use for my SQL Servers? RAID 10. It gives great read and write performance, while RAID 5 pays a write penalty for parity.

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Apr22

SQL SERVER – @@DATEFIRST and SET DATEFIRST Relations and Usage

Pinal Dave
SQL Tips and Tricks
SQL DateTime, SQL Function, SQL Scripts, SQL Utility
4 Comments

How SET DATEFIRST changes the first day of the week, and how @@DATEFIRST returns the current value, which also changes with SET LANGUAGE. Simple examples.

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Apr22

SQL SERVER – Fix : Error 1418 – Microsoft SQL Server – The server network address can not be reached

Pinal Dave
SQL Tips and Tricks
Computer Network, SQL Error Messages, SQL Server, SQL Server Security, SQL Utility
112 Comments

Error 1418 says the server network address cannot be reached or does not exist. Check the firewall, then enable TCP/IP for the server and client on port 1433.

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Apr21

SQL Server Interview Questions and Answers Complete List Download

Pinal Dave
SQL Interview Questions and Answers
Best Practices, Database, SQL Scripts, SQL Server
282 Comments

The SQL Server Interview Questions and Answers Complete List Download collects my six part series in one PDF, as many readers asked.

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Apr20

SQL Server Interview Questions and Answers Part 6

Pinal Dave
SQL Interview Questions and Answers
Database, SQL Backup and Restore, SQL Constraint and Keys, SQL Cursor, SQL Download, SQL Function, SQL Joins, SQL Scripts, SQL Server, SQL Server Security, SQL Stored Procedure, SQL Trigger
81 Comments

Interview Questions and Answers Part 6 covers the six properties of relational tables and de-normalization, adding redundant data to help performance.

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Apr19

SQL Server Interview Questions, Part 5: Practical Answers

Pinal Dave
SQL Interview Questions and Answers
Developer, SQL Scripts, SQL Server
4 Comments

Practical SQL Server interview questions cover administration, settings, replication, string functions and data integrity. Compare small examples of string replacement and row counting, and keep each answer within its intended scope.

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SQL Server slow? Let's fix it together in about four hours.

Pinal Dave

In my Comprehensive Database Performance Health Check, you share your screen, I guide you, and we fix your biggest performance troublemakers. No passwords. No remote access.

You keep every script, and the know-how to fix it yourself next time.

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My Practical Workshop has no PowerPoint, just live demos. My AI Enablement Workshop shows your team where AI saves hours, and where it quietly costs them.

Over 400 customers have worked with me this way, and not one shared a password. See all consulting options.


Who We Are

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 19 books and 125 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 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.


Shaivi Pinalkumar Dave is a book author and a women’s artistic gymnast.

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