RIGHT JOIN (or RIGHT OUTER JOIN): It’s the opposite of a LEFT JOIN. It keeps all rows from the right table and matches from the left. Less common than LEFT JOIN, but good to know it exists.

The Trump Administration is working with tech company Palantir to collect all unclassified information about U.S. citizens into a nationwide, centralized database for federal agency heads and their ...

We have seen how to read data from a file, either in unstructured text or CSV format, and how to write data in these formats. We’ve also seen how to read and write JSON. In this chapter we’ll see how ...

The Trump administration has, for the first time ever, built a searchable national citizenship data system. The tool, which is being rolled out in phases, is designed to be used by state and local ...

The Trump administration has expanded Palantir’s work with the government, spreading the company’s technology — which could easily merge data on Americans — throughout agencies. Alex Karp, a ...

MySQL is one of the world’s most widely used database management systems. It is easy to install and use and is usually free. Here’s how to use it. In our previous post, we took you through the basic ...

Do you know what data you want to collect? How many tables do you need? What is the purpose of this thing? What’s the difference between null and zero? If you can’t answer any of those, we suggest you ...

Have you ever found yourself scrolling endlessly through a long document, desperately trying to locate a specific section? Or maybe you’ve spent hours manually formatting a table of contents, only to ...