GateXAIML / Recommended Books
Database Management Systems
Why this subject matters: DBMS is one of the highest-weightage GATE CSE subjects, and database design/normalization/transactions questions are standard in interviews for almost any engineering or data role.
Standard reference
Database System Concepts
The most widely used DBMS textbook for GATE — strong coverage of relational algebra, normalization, and transaction management.
In-depth
Fundamentals of Database Systems
More exhaustive than Silberschatz on ER modeling and database design — a strong alternative or supplement.
Practice & problems
Database Management System: A Practical Approach
India-focused, GATE-style problems with an emphasis on SQL and normalization exercises.