Java を使用して Clickhouse に基づいたカラム型データベース アプリケーションを開発する方法

import ru.yandex.clickhouse.ClickHouseConnection;
import ru.yandex.clickhouse.ClickHouseDriver;
import ru.yandex.clickhouse.ClickHouseStatement;

import java.sql.ResultSet;
import java.sql.SQLException;

public class ClickHouseExample {

    public static void main(String[] args) {
        // 连接ClickHouse数据库
        ClickHouseDriver driver = new ClickHouseDriver();
        try {
            ClickHouseConnection connection = driver.connect("jdbc:clickhouse://localhost:8123/default", null);

            // 创建Statement对象
            ClickHouseStatement statement = connection.createStatement();

            // 执行查询
            ResultSet resultSet = statement.executeQuery("SELECT * FROM your_table");

            // 处理结果
            while (resultSet.next()) {
                // 处理每一行数据
                // ...
            }

            // 关闭连接
            resultSet.close();
            statement.close();
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

import ru.yandex.clickhouse.ClickHouseConnection;
import ru.yandex.clickhouse.ClickHouseDriver;
import ru.yandex.clickhouse.ClickHousePreparedStatement;

import java.sql.SQLException;

public class ClickHouseExample {

    public static void main(String[] args) {
        // 连接ClickHouse数据库
        ClickHouseDriver driver = new ClickHouseDriver();
        try {
            ClickHouseConnection connection = driver.connect("jdbc:clickhouse://localhost:8123/default", null);

            // 插入数据
            String sql = "INSERT INTO your_table (col1, col2, col3) VALUES (?, ?, ?)";
            ClickHousePreparedStatement statement = connection.prepareStatement(sql);
            statement.setString(1, "value1");
            statement.setInt(2, 123);
            statement.setDouble(3, 45.67);
            statement.executeUpdate();

            // 执行查询
            sql = "SELECT * FROM your_table";
            statement = connection.prepareStatement(sql);
            ResultSet resultSet = statement.executeQuery();

            // 处理结果
            while (resultSet.next()) {
                // 处理每一行数据
                // ...
            }

            // 关闭连接
            resultSet.close();
            statement.close();
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}