A step-by-step guide to solving SQL queries using ER diagrams. Learn how to identify relationships, apply joins, and write accurate SQL queries.

Learn what Data Analysis is, its different types, the complete data analysis process, and the role of a data analyst. Discover how organizations transform raw data into actionable insights for better decision-making and business growth.

Before getting into the topic lets first know what is Tableau and Why it is used? What Is TABLEAU? Imagine you are a manager at a growing company. Every day, information comes in from different places sales reports, customer feedback, website visits, and financial records. Soon, you have thousands of rows of data in the form of spreadsheets and databases. Looking at all this raw data feels like trying to read a huge pile of puzzle pieces without seeing the full picture. Th

The term DATA OBSERVABILITY was first coined in 2019. How I define Data observability is that how it allows you to continuously monitor your data and data systems. It helps you spot problems early, understand what caused them, and resolve them before they affect reports, dashboards, or decision making. Data observability monitors a dataset's volume and freshness. Data observability ensures that all expected data is present and refreshed at the correct time. It uses exceptiona