如何远程查看数据库服务器时间

 ```python

 import mysql.connector

 # 连接到数据库服务器

 cnx = mysql.connector.connect(user='username', password='password',

                               host='hostname', database='database_name')

 # 创建游标对象

 cursor = cnx.cursor()

 # 执行查询

 query = "SELECT NOW()"

 cursor.execute(query)

 # 获取结果

 result = cursor.fetchone()

 print("数据库服务器时间：", result[0])

 # 关闭游标和连接

 cursor.close()

 cnx.close()

 ```

 ```java

 import java.sql.*;

 public class DatabaseTime {

     public static void main(String[] args) {

         Connection conn = null;

         Statement stmt = null;

         ResultSet rs = null;

         try {

             // 连接到数据库服务器

             conn = DriverManager.getConnection("jdbc:mysql://hostname/database_name", "username", "password");

             // 创建Statement对象

             stmt = conn.createStatement();

             // 执行查询

             String query = "SELECT NOW()";

             rs = stmt.executeQuery(query);

             // 获取结果

             if (rs.next()) {

                 Timestamp time = rs.getTimestamp(1);

                 System.out.println("数据库服务器时间：" + time);

             }

         } catch (SQLException e) {

             e.printStackTrace();

         } finally {

             // 关闭ResultSet、Statement和Connection

             try {

                 if (rs != null) {

                     rs.close();

                 }

                 if (stmt != null) {

                     stmt.close();

                 }

                 if (conn != null) {

                     conn.close();

                 }

             } catch (SQLException e) {

                 e.printStackTrace();

             }

         }

     }

 }

 ```