5 Websites To Learn More SQL – Substack Repost

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…

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Simulate LEAD() Window Function using correlated subquery

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.

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INSERT Using the WITH Clause in MySQL

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…

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How To Combine Window Functions in MySQL

Window Functions operate on groups of rows, returning a value for every row in the group, unlike Aggregate Functions which collapse rows into a single value. With the many different Window Functions available, can you combine them at the same level? Learn more in this article.

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