@MazinoCodes
Learning databases, data engineering, and building in public
Nothing here yet.
Nothing here yet.
Jan 9 · 4 min read · Today, I built a User Analytics Database in PostgreSQL. The goal was to simulate a real-world business scenario where we need to answer questions like: How many users registered in the last month? Which countries have the most users? How many user...
Join discussionJan 9 · 4 min read · Today I stopped just watching SQL videos and finally went hands-on. Instead of passively following tutorials, I practiced SQL subqueries directly on SQLZoo, specifically the “SELECT in SELECT” section, which focuses on using subqueries to write more ...
Join discussionJan 7 · 3 min read · Day three was all about reinforcing the basics, not rushing forward, but getting comfortable with SQL by practicing it repeatedly on real data. I spent most of today working through SQLZoo exercises, inserting data into PostgreSQL, and querying a rea...
Join discussionJan 7 · 3 min read · Day Two with SQL: From LeetCode Challenges to My First PostgreSQL Tables Today’s learning was a mix of practice and setup and honestly, it was one of the most enjoyable days so far. I worked through SQL challenges on LeetCode and then set up PostgreS...
Join discussionJan 6 · 3 min read · Databases & SQL Basics: What I Learned on Day One Today I officially started my journey into databases and SQL. Instead of rushing into complex queries, I focused on understanding what databases actually are, how they’re managed, and how SQL is used ...
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