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

💻 Stay ahead in 2025…

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

💻 Stay ahead in 2025 and beyond!
📢 Don't forget to like, share,…

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.…

J2EE- Servlet Hello World
A Servlet is a Java program(Web Application) that runs on a web server and handles HTTP requests and responses. It is a key component of Java EE used to create dynamic web applications.

Servlet Lifecycle

Initialization (init()):…

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…

Hibernate Named Queries-
Named Queries in Hibernate are predefined, reusable queries written in HQL

Advantages of Named Queries
Precompiled – Compiled once during application startup.
Reusable – Defined once and used many times.
Maintainable – Easy to manage…

Hibernate Many-to-Many mapping
Employee[*]- Address[*]

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

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📢 Don't forget to like, share, and subscribe for more insightful content.

Visit fu…

Hibernate Full Stack User SignUp Application
Back End- Java, JDK 17, Hibernate, Servlet
Front End- JSP
Database- MySQL
Web Server- Tomcat 11

Functionality- User SignUp

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

💻…

J2EE- Servlet Hello World
A Servlet is a Java program(Web Application) that runs on a web server and handles HTTP requests and responses. It is a key component of Java EE used to create dynamic web applications.

Servlet Lifecycle

Initialization (init()):…

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…

J2EE- Servlet | JSP | JDBC
User Registration- Full Stack Application
MVC Architecture
M- Model[DAO]
V- View[Presentation]
C- Controller[Business]

Back End- Java | JDK 17 | Servlet | JDBC
Front End- JSP
Database- MySQL

GitHub URL- https://github.com/ful…

Hibernate Full Stack User SignUp | SignIn Application

Back End- Java, JDK 17, Hibernate, Servlet
Front End- JSP
Database- MySQL
Web Server- Tomcat 11

Functionality- User SignUp | SignIn

GitHub- https://github.com/fullstackjavadeveloperpune/hibernatef…

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)…

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)…

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

💻 Stay ahead in 2025…

Hibernate Full Stack User SignUp | SignIn Application

Back End- Java, JDK 17, Hibernate, Servlet
Front End- JSP
Database- MySQL
Web Server- Tomcat 11

Functionality- User SignUp | SignIn

GitHub- https://github.com/fullstackjavadeveloperpune/hibernatef…