Database

Database normalization is a process in relational database design that organizes data to reduce redundancy and improve data integrity. Proper normalization ensures that your database is efficient, consistent, and easier to maintain. Why Normalize a Database? Normal Forms (NF) Normalization is done in steps called normal forms. Each normal form has specific rules: Example: StudentID Name Courses … Read more

octobre 15, 2025 by Sumit In relational databases, data is often distributed across multiple tables to avoid redundancy. To combine data from different tables, SQL provides joins. Understanding joins is essential for writing efficient queries and extracting meaningful insights. What is a SQL Join? A join is a SQL operation that allows you to combine rows from two or more tables … Read more