"Now," Sam said, "the magic. We join the sales table to the customers table. Filter by date and product."
"Okay," Sam said. "The question: blue widgets, last quarter. Widgets are in products . Let's find the product ID for 'Blue Widget'."
An hour later, Margaret walked by his desk. "How did you get that so fast?"
PRAGMA table_info(customers); It showed columns: id , name , city , member_since . Suddenly, the messy spreadsheet felt like a tidy filing cabinet.
"To dig through data without blowing up your laptop. Stop using Excel like a sledgehammer. Use SQLite. It’s a database that lives in a single file. No server. No password. Just you and the data."