08_JDBC

JDBC (Java Database Connectivity)

This section introduces JDBC, which allows Java applications to interact with relational databases. You'll learn how to establish a database connection, perform CRUD operations (Create, Read, Update, Delete), and manage data efficiently.

Topics Covered:

1. Connecting to a Database - How to set up a connection using JDBC.
2. SQL Operations - How to run SQL queries from Java code.
3. Database Transactions - Performing insert, update, and delete operations from Java.

Example Programs:

1. JDBCConnection.java - A program that demonstrates how to connect to a database using JDBC.

   • Concepts: Establishing a connection using DriverManager.

2. CreateTable.java - A program that creates a table in the connected database.

   • Concepts: Executing CREATE TABLE SQL statements from Java.

3. InsertRecord.java - Demonstrates how to insert a new record into a table.

   • Concepts: Using PreparedStatement to insert data into a database.

4. UpdateRecord.java - Shows how to update existing records in the database.

   • Concepts: Executing UPDATE SQL statements.

Exercises:

1. Write a program to establish a connection to any database of your choice using JDBC.
2. Write a program that creates a table with columns id, name, and email, then insert at least three records.
3. Modify the program to update one of the records and display the updated record.

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Moving Forward:

Once you're comfortable with JDBC, explore more advanced topics like transaction management, batch processing, and database connection pools to improve the performance of your database-driven Java applications.

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Files

• JDBCConnection.java: Demonstrates JDBC connection and SQL statements.
• InsertRecord.java: Inserts a record into the database.
• CreateTable.java: Creates a table in the database.
• UpdateRecord.java: Updates records in the database.