DBMS महा मैराथन | Complete Revision | Computer Instructor Bharti 2026 | MCQ + PYQ + Theory

Описание: DBMS महा मैराथन | Computer Instructor Bharti 2026 | Complete Revision | MCQ + PYQ + Theory
इस एक ही क्लास में आपको Database Management System (DBMS) का सम्पूर्ण रिवीजन कराया जाएगा, जिसमें Theory, MCQ, PYQ और Exam-Oriented Concepts शामिल हैं।

📚 इस क्लास में क्या मिलेगा?

✅ Complete DBMS Revision
✅ Easy Theory Explanation
✅ Important MCQs
✅ Previous Year Questions (PYQ)
✅ Most Expected Questions
✅ Exam-Oriented Concepts
✅ Computer Anudeshak 2026 Special Preparation

1. Introduction to DBMS
Data, Database & DBMS
Advantages & Disadvantages of DBMS
Characteristics of DBMS
Database Users

2. Database Models
Hierarchical Model
Network Model
Relational Model
Object-Oriented Model

3. Entity Relationship (ER) Model
Entity
Attributes
Relationship
Degree of Relationship
Cardinality
Weak Entity
ER Diagram

4. Keys
Super Key
Candidate Key
Primary Key
Alternate Key
Foreign Key
Composite Key
Unique Key

5. Constraints
NOT NULL
UNIQUE
PRIMARY KEY
FOREIGN KEY
CHECK
DEFAULT

6. Normalization
Functional Dependency
Partial Dependency
Transitive Dependency
1NF
2NF
3NF
BCNF
Denormalization

7. Relational Algebra
Select (σ)
Project (π)
Union
Intersection
Difference
Cartesian Product
Join
Division

8. SQL (Most Important)
DDL Commands (CREATE, ALTER, DROP, TRUNCATE)
DML Commands (INSERT, UPDATE, DELETE)
DQL (SELECT)
DCL (GRANT, REVOKE)
TCL (COMMIT, ROLLBACK, SAVEPOINT)
WHERE, ORDER BY, GROUP BY, HAVING
Aggregate Functions
LIKE, IN, BETWEEN
Joins
Views
Indexes

9. Transactions
Transaction
ACID Properties
COMMIT
ROLLBACK
SAVEPOINT

10. Concurrency Control
Lost Update
Dirty Read
Locking
Deadlock
Timestamp

11. Database Security
Authentication
Authorization
Privileges
Backup & Recovery

12. File Organization & Indexing
Sequential File
Indexed File
Hashing
B-Tree
B+ Tree

13. Database Languages
DDL
DML
DCL
TCL
DQL

14. Joins (Very Important)
Inner Join
Left Join
Right Join
Full Outer Join
Self Join
Cross Join

15. Miscellaneous
Data Independence
Schema & Instance
Data Dictionary
View vs Table
DBMS vs File System
RDBMS vs DBMS
OLTP vs OLAP
⭐ High-Weightage Topics (Must Prepare)
SQL Commands
Keys & Constraints
Normalization
ER Diagram
Relational Algebra
ACID Properties
Joins
DBMS vs RDBMS
Transactions
Database Models

🎯 Useful For Students
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