In large healthcare datasets—such as cardiac failure studies that track patient demographics, lab values, medical history, and prescriptions—efficient querying and analysis of data are essential. When working with multiple interrelated tables, it’s common to face performance issues due to complex joins, aggregations, and millions of records. Addressing this, Views and Materialized Views in PostgreSQL become powerful optimization tools. What Is a View? A view  is a virtual ta

What Is a Bug Tracking System? A bug tracking system  (also known as a defect tracking system or issue tracker) is a software application designed to manage and track reported software bugs or defects during the development process. It serves as a centralized platform where developers, testers, and project managers can log, prioritize, and monitor the resolution of bugs throughout the software development lifecycle. 🔍 Key Features of Bug Tracking Systems Bug Reporting : Allo

In today’s data-driven world, the ability to extract insights from data has become a cornerstone of success for businesses, governments, and organizations. Whether it’s optimizing operations, understanding customer behavior, or forecasting future trends, data analysis bridges the gap between raw information and impactful decisions . But what exactly is data analysis? At its core, data analysis is the process of inspecting, cleaning, transforming, and interpreting data to dis

When we all think of creating powerful dashboards in Tableau or Power BI, we jump straight into charts, filters, and KPIs. But the truth is, great visualization doesn’t start with design — it starts with data . Behind every fast, accurate, and insightful dashboard lies a strong foundation: data structure, data modeling, and understanding how OLTP and OLAP systems work . These concepts determine how smoothly your visualizations run, how quickly they respond, and how correctly