SQL database normalization is a foundational concept in managing relational data effectively. Here, we will explore its importance in reducing redundancy and ensuring data integrity—key skills for anyone pursuing a data science course in Mumbai. From understanding normal forms to applying real-world best practices, this article bridges academic theory with practical application. Whether you're enrolled in a data science institute in Mumbai or planning to join a data science course in Mumbai with placement, mastering normalization is critical for working with scalable and reliable datasets in real-world projects.