Thank you for your elaboration.
To start with, please check out this response on the aim of this piece and Math share in data science:
Second, please don't suggest something you're not sure about. SQLite is there just to test the waters.
I am not pulling out of my hat.
I came to realize this reality when I was working on a business project. The project required MySQL. And to complete it, SQLite was not as handy as I expected it to be.
Although MySQL and SQLite have things in common such as SELECT, INSERT, and UPDATE queries. SQLite remains quite limited compared to MySQL.
SQL Business-wise involves: SQL ACID, Stored Procedures, Constrains Adding to name a few. Unfortunately, there is no way to learn these using SQLite.
In addition, relational database management systems such as MySQL, SQL Server, PostgreSQL require industry settings. Why?
Well, I do emphasize industry settings. First, because you need a server to use the above systems. Second, to get the chance to deal with SQL problems that really matter in the business world such as race conditions and isolation levels...
In a nutshell, I am just scratching the surface here.