Hibernate CRUD Application-
Hibernate- It is an ORM tool
Functionality-
C- Create
R- Read
U- Update
D- Delete

GitHub- https://github.com/fullstackjavadeveloperpune/hibernatecrud

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Spring Boot Microservices
Microservices- 2 or more Spring Boot module they will communicate with each other
Services-
ProductService- 9191
CustomerService- 9192
ServiceRegistry- 8761
APIGateway- 2025

Service Communication- Feign Client

Design Pattern…

Spring Boot CRUD | Product Management API with MySQL & Swagger UI
In this video, we will build a complete Product Management application using Spring Boot, Spring Data JPA, and MySQL. This tutorial covers end-to-end CRUD operations (Create, Read, Update,…

@Embeddable in Hibernate

The @Embeddable annotation in Hibernate is used to define a class whose
instances can be embedded in other entity classes.

This is helpful when you want to group related fields into a reusable class
without creating a separate…

Core Java Bank Application-
Welcome to this tutorial on creating a Core Java Banking Application with Kiran Jadhav! In this video, we'll walk you through developing the first version of a banking software system for an Indian bank that allows users to perform…

Static Concept in Java -

1. Static Block: It always execute before main method.
This is particularly useful for performing initialization tasks that need to be done only once, such as establishing connections.

2. Static Class: Outer class never static…

Hibernate SignUp | SignIn

GitHub- https://github.com/fullstackjavadeveloperpune/hibernatesignupsigin

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Spring Boot with JWT-
JWT- JSON Web Token- JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted…

@Transient Annotation in Hibernate
What is @Transient in Hibernate?
@Transient annotation is used to indicate that a field should not be persisted
in the database.
Hibernate will ignore this field chrowhen performing any save, or update operations.

✅Real…

Full Stack Application SignUp | SignIn | Java Spring Boot + React JS + MySQL

Tech Stack-
✅ Backend – Java 17, Spring Boot, Spring Data JPA
✅ Frontend – React JS
✅ Database – MySQL
✅ API Communication – Axios
✅ Version Control – GitHub

React JS-
✅ Create…

Session.get() vs Session.load() in Hibernate
In Hibernate, both session.get() and session.load() are used to fetch data from the database
using the primary key.
session.get()-
Returns null if the object is not found.
Useful when you need to check whether…

SQL- Structured Query Language
RDBMS stands for Relational Database Management System.

Modern database systems such as MySQL, PostgreSQL, SQL Server, Oracle, etc.
The data in RDBMS is stored in database objects called tables. A table is a collection of related…

Keys in SQL: Primary Key, Unique Key, and Foreign Key
1. Primary Key -
Primary Key is a column in a table that uniquely identifies each row in that table.

Characteristics:
Ensures uniqueness – No two rows can have the same value in the primary key column.…

Hibernate Association Mapping-
One to One Mapping
One Employee has one Address.
Each Address is linked to exactly one Employee.

Notes
This is a unidirectional One-to-One (Employee → Address).
You can make it bidirectional by adding a mapped field in Address:…

Airline Reservation | Spring Boot + React JS Full Stack Project
Tech Stack- Full Stack[JDK 17, Spring Boot 3+, React JS]
Back End- Java, JDK 17, Data JPA, Spring Boot, Spring Security- JWT
Front End- React JS
Database- MySQL
API Testing- Postman API, Swagger…

JDBC- Java Database Connectivity

Steps for JDBC
1. Load Driver Class
2. Establish Database Connection
3. Create Statement
4. Execute Query
5. Close Database Connection

#GitHub URL- https://github.com/fullstackjavadeveloperpune/jdbcex

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Joins in SQL-
Joins in SQL are used to retrieve data from multiple tables based on a related column between them.

1. INNER JOIN
Returns only the matching rows from both tables.
If there is no match, the rows are excluded.

2. LEFT OUTER JOIN (LEFT JOIN)…

Hibernate One to Many Mapping
Employee[1]- Address[*]

table-
1. Employee
2. Address
3. Employee_Address

GitHub- https://github.com/fullstackjavadeveloperpune/hibernateonetomanymapping

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Aggregate Functions in SQL-
Aggregate functions in SQL perform calculations on a set of values and return a single value. They are commonly used with the GROUP BY clause to perform operations on grouped data.

There are 5 Aggregate Functions in SQL- MIN…

JDBC- Java Database Connectivity

CRUD:
C- Create
R- Read
U- Update
D- Delete

-------------------------------------------------------
Functionality-
1. Create Database
2. Craete Table
3. Insert Data
4. Read Data
5. Update Data
6. Delete By Id
7. Delete All…

Hibernate Many-to-One mapping
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "address_id") // Foreign key column
private Address address;

cascade = CascadeType.ALL in @ManyToOne ensures that the Address will be saved/updated when saving Employee.…