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.
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[Read more]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…
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[Read more]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…
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…[Read more]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.
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[Read more]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…
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Suggested Reading
Visit any of these MySQL beginner-friendly articles for additional free learning resources:
[Read more]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.
[Read more]I recently took some time to explore the MySQL GROUP BY WITH ROLLUP modifier. As a self-starter, I’m always unknowingly studying SQL concepts that I soon need for a query requirement. Call it luck or premonition, doesn’t matter to me. I’ll take these small wins thanks to my curiosity…
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I went for a deep dive into the WITH ROLLUP GROUP BY modifier over on the OpenLampTech publication page.
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[Read more]In this blog post, you will learn how to create a MySQL table using the various tools MySQL Workbench provides without typing any SQL code. Continue reading and learn how…
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[Read more]It’s no secret that text or string data are one of the most common datatypes you will process. At times, only a specific portion of a string may be needed and this is the perfect use case for the SUBSTRING() character function…
The Newsletter for PHP and MySQL Developers
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Recently, I published an article over on the OpenLampTech Substack publication page, MySQL SUBSTRING() Function – With Examples, where I cover syntax and examples of the function.
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[Read more]I recently needed to add multiple columns to an existing table to store summary data calculations and wondered if I could do it in one MySQL ALTER TABLE statement. Turns out you can. And, it’s super simple. Convenient too. Continue reading and learn what I learned…
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