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SQL Puzzle – A Quick Fun with Bit Wise Operator

Pinal Dave
SQL, SQL Puzzle, SQL Server, SQL Tips and Tricks
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It has been a long time since we have puzzle on this blog so let us have a quick puzzle this Friday. It is based on Bit Wise Operator and very simple if you know those operators.

We will guess the output of the SQL script.

For example, here is the select statement:

SELECT 10 & 10

SQL Puzzle - A Quick Fun with Bit Wise Operator bitwisezero

Upon executing it will return us answer as a 10.

However, when I execute following two queries, both of the queries give an answer as Zero.

SELECT 10 & 0;
SELECT 1 & 100;

SQL Puzzle - A Quick Fun with Bit Wise Operator bitwisezero1

Here is the question for you – why is it giving answers as zero? Please leave your answer in a comment below.

Reference: Pinal Dave (https://blog.sqlauthority.com)

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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 94 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.

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