Course module

DataBase Management System/DBMS — IOCL Engineers/Officers (Grade A) 2026 – Computer Science (Paper 2)

Lessons: 231
Duration: 16 hr 16 min
PYQs: 293
Practice: 1299

9% of this course's PYQ weight is covered in this module.

Syllabus index

Lessons in this module

231 linked lessons

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Lessons in this module

Basics of DBMS

DBMS Fundamentals

Types & DBA Functions

ER Diagram

ER Modeling Fundamentals

Cardinalities, Participation & Entity Strength

Conversion of ER Diagram into Relational Model

Relational Model & Functional Dependencies

Basics of Relational Model & Anomalies

Functional Dependencies & Axioms

Attribute Closure & Equivalence of Sets

Minimal Cover (Canonical Cover)

Keys & Integrity Constraints

Super Key, Candidate Key & Primary Key

Foreign Key & Referential Integrity

Composite & Alternate Keys

Normalization (1NF - BCNF)

Introduction to Normalization & 1NF

Second Normal Form (2NF)

Third Normal Form (3NF)

Boyce-Codd Normal Form (BCNF)

Decomposition Properties & 4NF

Multivalued Dependency (MVD) & 4NF

Lossless Join Decomposition

Dependency Preserving Decomposition

File Organization & Indexing

Basics & Types of Indexing

B-Trees & B+ Trees (Structure & Insertion)

Deletion in B-Trees & B+ Trees

Relational Algebra

Introduction to Query Languages

Unary Operators (Selection & Projection)

Set Operations & Cartesian Product

Join Operations (Inner & Outer)

Rename Operation

Division Operator

SQL

Introduction, Components & Structure

Select, Where, Distinct

Datatypes, Operators & Null

DDL, DML, DCL, TCL & Desc

Order By & Rename Operation (Alias)

Library Functions (Math, Aggregate, String, Date)

Set Operations & Cartesian Product

Join Operations (Inner & Outer)

Group By Clause

Nested & Correlated Subqueries

Relational Calculus

Tuple Relational Calculus (TRC)

Domain Relational Calculus (DRC)

Safety of Expressions & Power

Transaction Management

Introduction & ACID Properties

Transaction States

Concurrency Problems

Schedules & Conflict Serializability

View Serializability

Recoverability, Cascadeless & Strict Schedules

Concurrency Control

Introduction to Concurrency Control

Timestamp Ordering Protocols

Lock-Based Protocols & Basic 2PL

Variations of 2PL (Strict, Rigorous, Conservative)

Multi-Topic Content (Cross-Concept Material)

Previous-year questions

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