Pandas for Productivity Vlog Ep2: Think like a data engineer!

Why this topic? When we join two flat files, or a flat file to a SQL query output in Python, they probably come from 2 different sources. Therefore, we can’t assume that they’re engineered to be combined directly. What it covers: I walk through 2 examples of joining data from completely different sources. In both […]

Subqueries and CTEs: Multi-step problems

As you progress, you’ll find situations where you need to combine more than one data pull to answer your question. In these situations, you’ll use subqueries and join or filter the results from these. Actually, you already have seen some subqueries in the examples from the last 2 posts. This post aims to provide an […]