SQL for Data Analysis

Data analysis is the core of making any informed business decisions and for any aspiring data professionals out there, mastering the SQL ( Structured Query Language) is almost non-negotiable. My journey into the world of data began a year ago and today, as a Business Intelligence(BI) Analyst, I rely on SQL daily to query, manipulate data, uncover hidden information, and deliver impactful reports. But the question is, How did I start learning SQL to get into the data field in the first place, and how can you do the same?

Here is my story, I heard a lot about SQL and its importance in the field of data analytics, but the idea of thinking forward, writing queries, and understanding database schemas felt like a steep learning curve.

I started learning about SQL by following only 2 resources at the beginning and that is W3Shcools and AlexTheAnalyst YouTube channel. I’ve noticed most people stumble and switch around tons of resources but I suggest if you are new then start with the above resources and stick to it. First I got into the basics and familiarized myself with SQL’s syntax and its core components DDL(Data Definition Language) query and DML (Data Manipulation Language) query. As a beginner, I found interactive platforms like SQLZoo, Leetcode, and AnalystBuilder (Recommended for new learners) incredibly useful for practicing what I learned.

As a Business Intelligence Analyst, SQL is a core tool for my daily task. I use it to extract data, perform complex queries, and create reports. It allows me to filter, aggregate, and manipulate the data based on problem statements. It’s surprising to know that, with a few lines of the script, I can make data come to life!

Advice for Beginners

I know, I know- you’re probably looking for some secrets advice, or magic shortcuts as we all are in a hurry to learn it as fast as we can and break into the data field, and boom, suddenly we’re experts. But here’s the reality: Just start learning right now, as you are reading this blog. Be consistent, Stick to one or two resources, and don’t overcomplicate things. Pick one platform ( MSSQL, MYSQL, PostgreSQL) as basic are same for all.

When I first started learning SQL, I didn't use any formulas or fall for those ‘ Learn SQL in 10 Minutes or 1 hour’ bullshit. Learning something new takes time, and you’ve to be consistent about it. I spent just 30 minutes a day writing queries, reading articles, watching tutorials, or solving problems. Eventually, all those small steps and consistent effort added up. One day when I looked back, and realized I was the one answering the SQL questions, not asking them.

So, my advice is just to start right now, focus on the basics, and learn consistently. Once the basic is cleared, it’ll all start to make sense. Feel free to check out my GitHub resources as well, here I have documented everything I have learned so far. Good Luck and Happy Learning!!.