Databases
Approximate weightage in recent GATE CSE papers: ~7%
Official syllabus topics
- ER model
- Relational model: relational algebra, tuple calculus, SQL
- Integrity constraints, normal forms
- File organization, indexing (B and B+ trees)
- Transactions and concurrency control
How to prepare
Normalization and serializability questions follow strict procedures — they are algorithms, learn them as such.