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Steps to connect to a MySQL database in a Java application using JDBC

Step 1. Download and Install the MySQL JDBC Driver: First, you need to download the MySQL JDBC driver (usually a JAR file). You can obtain it from the official MySQL website or include it as a dependency if you are using a build tool like Maven or Gradle.

Step 2. Import JDBC Packages: Import the necessary JDBC packages into your Java application.

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

Step 3. Establish a Database Connection: Create a connection to your MySQL database by specifying the database URL, username, and password.

String url = "jdbc:mysql://localhost:3306/yourdatabase";
String user = "username";
String password = "password";

try {
    Connection connection = DriverManager.getConnection(url, user, password);
} catch (SQLException e) {

Step 4. Create a Statement or PreparedStatement: You can use Statement for static SQL queries or PreparedStatement for parameterized queries.

// Statement example
Statement statement = connection.createStatement();

// PreparedStatement example
String sqlQuery = "INSERT INTO yourtable (column1, column2) VALUES (?, ?)";
PreparedStatement preparedStatement = connection.prepareStatement(sqlQuery);

Step 5. Execute SQL Queries: Execute the SQL queries based on your requirements.

// Execute SELECT query
String selectQuery = "SELECT * FROM yourtable";
ResultSet resultSet = statement.executeQuery(selectQuery);

// Execute INSERT, UPDATE, or DELETE query using PreparedStatement
preparedStatement.setString(1, value1);
preparedStatement.setString(2, value2);
int rowsAffected = preparedStatement.executeUpdate();

Step 6. Process the Results: If you executed a SELECT query, iterate through the result set to retrieve data.

while (resultSet.next()) {
    // Process each row of data

Step 7. Close Resources: Always close the database resources when you’re done with them.

Steps to connect to a MySQL database in a Java application using JDBC

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