This document provides an overview of JDBC (Java Database Connectivity), including its role in connecting Java applications to databases, types of JDBC drivers, and how to execute SQL queries. It discusses connection pooling for improved performance, the use of PreparedStatement for SQL injection prevention, and outlines transaction management principles in databases. Additionally, it introduces ORM (Object-Relational Mapping) frameworks like Hibernate and JPA for managing database operations in Java.

1. JDBC
OVERVIEW

2. 1. JDBC (Java Database
Connectivity):
 Explanation of JDBC and its role in connecting
Java applications to databases like MySQL.
 Understanding JDBC drivers and their types
(Type 1, Type 2, Type 3, Type 4).
 Writing Java code to establish connections,
execute SQL queries, and handle results
using JDBC APIs.

3. 2. Connection Pooling:
 Introduction to connection pooling and its
importance in improving database connection
performance.
 Integration of connection pooling libraries like
Apache Commons DBCP or HikariCP with
Java and MySQL.
 Configuration and optimization of connection
pool settings for better resource utilization.

4. 3. PreparedStatement and SQL
Injection Prevention:
 Explanation of PreparedStatement and its
advantages over Statement for executing
parameterized SQL queries.
 Understanding SQL Injection vulnerabilities
and techniques to prevent them using
PreparedStatement.
 Writing secure Java code to interact with
MySQL by utilizing PreparedStatement for
query execution.

5. 4. Transactions and Transaction
Management:
 Overview of database transactions and their
ACID properties (Atomicity, Consistency,
Isolation, Durability).
 Writing Java code to initiate, commit, and
rollback transactions using JDBC.
 Handling transaction management scenarios
like nested transactions, savepoints, and
transaction isolation levels.

6. 5. ORM (Object-Relational
Mapping):
 Introduction to ORM frameworks like
Hibernate and JPA (Java Persistence API).
 Mapping Java objects to relational database
tables and vice versa using ORM annotations
or XML mappings.
 Performing CRUD (Create, Read, Update,
Delete) operations on MySQL databases
using Hibernate's session or JPA
EntityManager.