[DAY 20] HINDI Hibernate Tutorial in Hindi | ORM vs JDBC | JPA Explained | Complete Hibernate CRUD

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🚀 JDBC se aage badhiye! Hibernate & ORM sikhiye - modern database access without SQL queries. Complete CRUD with annotations.

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⏱️ VIDEO TIMESTAMPS
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0:00 - Course Introduction
7:46 - Intro to ORM, Hibernate, JPA vs JDBC
26:13 - Hibernate Architecture + Components
30:11 - Create Hibernate Project, CRUD, Interview Questions
1:03:20 - Message from Faisal

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📚 IS VIDEO MEIN AAP SIKHENGE:

✅ ORM (Object Relational Mapping) kya hai
✅ Hibernate framework introduction
✅ JPA (Java Persistence API) explained
✅ Hibernate vs JDBC comparison
✅ Hibernate architecture & core components
✅ SessionFactory, Session, Transaction
✅ Entity class creation with annotations
✅ Complete CRUD operations without SQL
✅ Hibernate configuration setup
✅ Interview questions & answers

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🎯 KEY CONCEPTS:

🔹 ORM Fundamentals
• Java objects to database tables mapping
• Automatic SQL generation
• Database independence
• Reduced boilerplate code
• Object-oriented query language (HQL)

🔹 Hibernate vs JDBC
• JDBC: Manual SQL, ResultSet handling
• Hibernate: Automatic mapping, no SQL
• Hibernate: Database portability
• Hibernate: Caching support
• Hibernate: Lazy loading features

🔹 Hibernate Architecture
• Configuration - Setup properties
• SessionFactory - Factory for sessions
• Session - Database connection wrapper
• Transaction - ACID operations
• Query/Criteria - Data retrieval

🔹 JPA vs Hibernate
• JPA is specification (interface)
• Hibernate is implementation
• JPA annotations standard
• Can switch implementations easily

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💡 WHY LEARN HIBERNATE?

✔️ No SQL queries needed
✔️ Database independent code
✔️ Automatic table creation
✔️ Built-in caching
✔️ Spring Boot uses Hibernate (via JPA)
✔️ Industry standard
✔️ Better than raw JDBC

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🔧 HIBERNATE ANNOTATIONS:

Entity Mapping:
@Entity - Mark class as entity
@Table - Specify table name
@Id - Primary key
@GeneratedValue - Auto increment
@Column - Column properties

CRUD Operations:
session.save(entity) - INSERT
session.get(Class, id) - SELECT
session.update(entity) - UPDATE
session.delete(entity) - DELETE

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📊 HIBERNATE CONFIGURATION:

hibernate.cfg.xml contains:
• Database connection URL
• Driver class name
• Username & password
• Hibernate dialect
• Show SQL property
• Auto DDL generation

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🎓 INTERVIEW QUESTIONS COVERED:

1. What is ORM?
2. Hibernate vs JDBC differences?
3. SessionFactory vs Session?
4. What is HQL?
5. Lazy vs Eager loading?
6. First level vs Second level cache?
7. Hibernate annotations list?

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Video notes: [COMING SOON]
Video Details + Syllabus + Study Plan: https://docs.google.com/spreadsheets/...
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