June 2025 Discount: Comprehensive Database Performance Health Check | Testimonials

Home

SQL SERVER – Simple Puzzle Using Union and Union All – Answer

Pinal Dave
SQL, SQL Puzzle, SQL Server, SQL Tips and Tricks
7 Comments

Yesterday I posted a puzzle SQL SERVER – Simple Puzzle Using Union and Union All, today we will see the answer of this. Following image explains the answer of puzzle.

SQL SERVER - Simple Puzzle Using Union and Union All - Answer puzzlesunion

You can read the explanation of why this is answer read my previous article SQL SERVER – Union vs. Union All – Which is better for performance?

Reference : Pinal Dave (https://darkslategrey-bat-805937.hostingersite.com)

Database, SQL Joins, SQL Scripts
Previous Post
SQL SERVER – Simple Puzzle Using Union and Union All
Next Post
SQLAuthority News – Few Links About SQLAuthority

Related Posts

Leave a Reply

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 92 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://darkslategrey-bat-805937.hostingersite.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.