SQL is foundational in web and application programming. There are many websites and resources online to learn SQL. I like these 5 websites and think you will too…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Read the article: 5 Websites To Learn More SQL

Support the OpenLampTech publication with your free subscription. Thank you!

Thank you for reading this post. Please share it …

In my honest opinion, MS Access is one garbage of a database. More likely, database is too strong of a word. While I won’t be using Access in this article, there is a story there (but I’m not here to have an Access bash party). Continue reading for an example of how you may use a correlated subquery and simulate the LEAD() Window Function.

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Image by  …

MySQL now supports the INTERSECT and EXCEPT set operators. Set operators work on the results of multiple SELECT statements. In this post, we will see example queries using INTERSECT and EXCEPT commands for a better understanding

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

While MySQL has supported UNION and UNION ALL commands, there were no INTERSECT or EXCEPT commands in the language. This often involved work-around queries. However, MySQL now does support the INTERCEPT and EXCEPT set operators.

For the example queries, I am using 2 simple tables with arbitrary data.

The names …

As of MySQL v8, we have Common Table Expressions (CTEs) or the WITH clause available. I recently learned how to use the WITH clause in an INSERT statement, similar to INSERT with SELECT. Like always, I enjoy sharing what I learn so let’s all learn together…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

For the sake of simplicity (and my sanity) I’m using this arbitrary sample data:

SELECT *
FROM auto_test;

We can use the WITH clause to generate …

The INFORMATION_SCHEMA database is full of information and metadata about your database(s). Columns are a necessity and their definition ensures sound storage and data integrity. Learn all about them with the COLUMNS table.

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Image by Gerd Altmann from  …

Of course, there are other ways to determine what tables are present in a particular MySQL Database or Schema. You can also find this information if your database user account has permissions for the INFORMATION_SCHEMA database. Continue reading and follow along with an example query…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Image by Clker-Free-Vector-Images from  …

We know that when filtering text data in a MySQL WHERE clause conditional, strings are placed in single quotes. In this blog post, learn how to filter numeric data in a MySQL WHERE clause conditional…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Image by Gerd Altmann from Pixabay 

I’m sharing another tip for anyone who wants to learn more about MySQL and how to use it. This post covers an example of the differences in columns specified in the WHERE clause but not the SELECT clause and vice-versa.

Image by Drizzt_Do_Urden from Pixabay 

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the …

This post covers filtering in the WHERE clause conditional using the MySQL BETWEEN operator. Continue reading this excerpt of premium MySQL content I’m creating for anyone to learn how to use MySQL…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Suggested Reading

Visit any of these MySQL beginner-friendly articles for additional free learning resources:

• SELECT clause queries – MySQL Beginner Basics Series.
• …

Watch this quick in-depth video short and learn how to find all the calendar days for a specific month using built-in MySQL date functions and recursive Common Table Expressions (CTEs). This is a repost of a free article over on my Kofi page as part of the “MySQL Learning Tier” membership…

The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL Tips For Everyone”, absolutely free when you subscribe to the OpenLampTech newsletter.

Image by  …