Clean, Transform, and Load Data in Power BI: A Practical Guide to Data Preparation

INTRODUCTION Data cleaning is the process of identifying and correcting errors, anomalies and inconsistencies in raw data sets to improve the quality of the data and get it ready for advanced analysis and modeling. In today’s data-driven world, raw data is often messy and rarely ready for analysis. The real value of a data analyst lies not just in collecting data, but in their ability to prepare it for meaningful insights. Data cleaning and transformation is essential because it organize tables,