Database Management Systems is the single highest-weightage section of the BCI 2026 syllabus. Master ER modeling, normalization (1NF through BCNF), SQL, transactions, indexing, and modern database architecture with full lessons in English and Hindi, 10 MCQs per microtopic, and 4 flashcards each.
Free preview: Chapter 1 of this subject is fully free — read every lesson, attempt every MCQ, review every flashcard. No sign-up required to read; sign in to save progress.
Syllabus & chapters
Aligned to the official RSSB BCI 2026 syllabus. Each chapter has 7 microtopics with English and Hindi lessons, 10 MCQs per microtopic, 4 spaced-repetition flashcards per microtopic, and a 15-question chapter mock test.
Chapter 1
8 microtopics · 80 MCQs · 32 flashcards
ER Model
- ER Diagram Fundamentals
- Entity Sets — Strong vs Weak
- Attributes & Their Types
- Relationship Sets — Degree & Types
- Cardinality Ratios
- Participation Constraints
- Generalization, Specialization, Aggregation
- ER → Relational Mapping
Chapter 2
7 microtopics · 70 MCQs · 28 flashcards
Relational Model
- Relational Model Fundamentals
- Keys — Super, Candidate, Primary, Alternate, Foreign, Composite
- Integrity Constraints
- Relational Algebra — Unary Operations
- Relational Algebra — Set Operations
- Relational Algebra — Joins
- Relational Calculus — TRC & DRC
Chapter 3
7 microtopics · 70 MCQs · 28 flashcards
SQL
- SQL Basics & DDL
- DML — INSERT, UPDATE, DELETE
- SELECT in depth
- Aggregates & GROUP BY
- SQL Joins
- Subqueries & Nested Queries
- Views, DCL & TCL
Chapter 4
7 microtopics · 70 MCQs · 28 flashcards
Normalization
- Why Normalize? Anomalies & Redundancy
- Functional Dependencies & Keys
- First Normal Form (1NF)
- Second Normal Form (2NF)
- Third Normal Form (3NF)
- Boyce-Codd Normal Form (BCNF)
- Recap, Comparison & Exam Tricks
Chapter 5
7 microtopics · 70 MCQs · 28 flashcards
Transactions
- Transactions, States & ACID
- Schedules & Serializability
- Lock-based Protocols & 2PL
- Deadlocks
- Isolation Levels & Concurrency Anomalies
- Timestamp Ordering & MVCC
- Crash Recovery & Logging
Chapter 6
7 microtopics · 70 MCQs · 28 flashcards
Indexing & Hashing
- File Organization
- Single-Level Indexes
- B-Trees
- B+ Trees
- Static Hashing
- Dynamic Hashing
- Index Selection & Cost Estimation
Chapter 7
7 microtopics · 70 MCQs · 28 flashcards
Query Processing
- Query Processing Overview
- Selection Operations & Cost
- External Sort-Merge
- Join Algorithms
- Other Operations
- Heuristic Optimization
- Cost-Based Optimization + EXPLAIN
Chapter 8
7 microtopics · 70 MCQs · 28 flashcards
Database Architecture
- Three-Schema Architecture (ANSI/SPARC)
- Data Independence (Logical & Physical)
- DBMS Components & Internal Architecture
- Client-Server Architecture Tiers (1/2/3/n-tier)
- Database Languages — DDL, DML, DCL, TCL, DQL
- Database Users & DBA Roles
- Centralized · Distributed · Parallel DBMS + Recap
Chapter 9
7 microtopics · 70 MCQs · 28 flashcards
NoSQL Databases
- Why NoSQL — RDBMS Limits & CAP Theorem
- Key-Value Stores (Redis · DynamoDB · Memcached)
- Document Stores (MongoDB · CouchDB)
- Column-Family Stores (Cassandra · HBase)
- Graph Databases (Neo4j · Neptune)
- ACID vs BASE & Eventual Consistency
- NoSQL Comparison & Operations + Recap
Chapter 10
7 microtopics · 70 MCQs · 28 flashcards
Choosing the Right Database
- SQL vs NoSQL — Decision Criteria
- Choosing by Use Case (Relational/Document/Key-Value/Graph/Columnar)
- CAP Theorem Deep Dive (CP/AP/CA Trade-offs)
- Performance & Scalability (Horizontal vs Vertical)
- Cost · Schema Flexibility · Query Complexity
- Polyglot Persistence (Multi-Database Architectures)
- Real-World DB Selection Examples + Recap
How MeritPrep helps you crack Database Management Systems
- Microtopic depth: Each concept is broken into a 5-minute focused lesson with worked examples and diagrams, not 50-page chapters.
- RSSB pattern MCQs: Every MCQ is written in the style of past Paper II questions, with detailed explanations.
- Spaced repetition: Flashcards enter your Daily Review queue with intervals tuned to keep concepts fresh through exam day.
- Mock tests: 15-Q chapter mocks plus full-syllabus mocks for Database Management Systems when you're ready.
- Bilingual: Every lesson is available in both English and Hindi.
Frequently asked questions
Is Database Management Systems content free to read?
Chapter 1 of this subject is fully free, and the entire DBMS subject is free. To unlock the rest of Database Management Systems and every other BCI subject, get BCI Full Access for ₹1,499 — valid through 22 August 2026 (BCI Paper II exam day).
How does this prepare me for the BCI 2026 exam?
The Database Management Systems chapters mirror the official BCI Paper II syllabus exactly. Past-year questions (PYQs) are tagged on relevant MCQs so you know which topics are highest-yield. The combination of focused microtopic lessons, RSSB-pattern practice, and spaced repetition is designed for the exam format.
Is content available in Hindi?
Yes — every lesson, MCQ, and flashcard has a Hindi version. Toggle between English and Hindi from the language button at the top of the app.