Through the many changes in IT over the years, one constant has always been a concern for performance. With database systems there is especially true. Even with the many advances in relational ...

We list the best SQL online courses, to make it simple and easy to learn how to mange, code, and run databases, covering everything from beginner to advanced users. The Structured Query Language or ...

Poorly written SQL statements can cause significant performance problems in your database environment. According to some experts, poorly written SQL can cause up to 70% of performance problems overall ...

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...

After he’s equipped you with the skills to write SQL, the instructor ends the course by helping you build a simple web app. Instead of the popular MySQL and PHP combination, he uses Node.JS and the ...