Image from stock.adobe.com In the previous blogs of this series, I explored how data analysis fits into real business scenarios. Now, it’s time to take the next step in this journey, working with larger more complex datasets, the kind that banks deal with every day. One of the challenges they face constantly is figuring out the loan outstanding for customers who have multiple loans. Think about it! customers rarely just have one loan. Many of them juggle a home loan, a person

From NON - IT to Data Analytics... Could This Be Your Story Too? Photo by Deng Xiang  on Unsplash Have you ever sat at your desk and thought, “I’m doing my job well… but is this really what I want to do long term?” If yes, trust me you’re not alone. I was working in the financial sector , handling daily operations, transactions, and reports. Everything was stable. Everything was familiar. But somewhere along the way, I started noticing something interesting, every decision wa

In PostgreSQL, both Common Table Expressions (CTEs) and views offer powerful ways to simplify and organize complex queries. While they...

Introduction: PostgreSQL's window functions are a powerful feature that allows for complex data analysis and reporting directly within...