Understand the physical difference between Clustered Indexes (stores actual data in sorted order) and Non-Clustered Indexes (stores pointers to the data).
Be ready to define its purpose—reducing data redundancy—and explain the different normal forms (1NF, 2NF, 3NF). SQL Server Interview Questions
Mastering SQL Server interviews requires a blend of core theoretical knowledge and deep technical experience. Candidates should be prepared to discuss everything from basic query syntax to high-level architecture and disaster recovery strategies. Core Technical Concepts SQL Server Interview Questions