pipinstallmysql-connector-python 安装后,使用以下代码连接到MySQL: importosfrom dotenv import load_dotenv from mysql.connector import Error import mysql.connector load_dotenv() connection = mysql.connector.connect( host=os.getenv("HOST"), database=os.getenv("DATABASE"), user=os.getenv("USERNAME")...
importpymysql#IP地址、用户名、密码、数据库db = pymysql.connect("127.0.0.1","root","","test")#使用 cursor() 方法创建一个游标对象 cursorcursor =db.cursor()#使用 execute() 方法执行 SQL 查询cursor.execute("SELECT VERSION()")#使用 fetchone() 方法获取单条数据.data =cursor.fetchone() # 打...
importmysql.connectorfrommysql.connectorimportErrordefcreate_connection():"""创建与MySQL数据库的连接"""connection=Nonetry:connection=mysql.connector.connect(host='localhost',# 数据库服务器地址user='your_username',# 数据库用户名password='your_password',# 数据库密码database='mydatabase'# 想要连接的数...
:param host: the database server host name :param port: the database server port number :param user: the database server user name :param pwd: the database server key :param database: the database name :param charset: the encode of the database server """ self._conn = pymysql.conn...
该代码将导入 mysql.connector 库,并使用connect()函数连接到灵活服务器,使用配置集合中的参数。 该代码对连接使用游标,并通过cursor.execute()方法对 MySQL 数据库执行 SQL 查询。 Windows 命令提示符 import mysql.connector from mysql.connector import errorcode # Obtain connection string information from the po...
To handle connection errors, use the try statement and catch all errors using the errors.Error exception: import mysql.connector from mysql.connector import errorcode try: cnx = mysql.connector.connect(user='scott', database='employ') except mysql.connector.Error as err: if err.errno == ...
connect): raise AttributeError except AttributeError: threadsafety = 2 else: threadsafety = 0 if not threadsafety: raise NotSupportedError("Database module is not thread-safe.") self._creator = creator self._args, self._kwargs = args, kwargs self._blocking = blocking self._maxusage = ...
connect(database="db_test", user="postgres", password="12345678", host="127.0.0.1", port="5432") ## 执行之后不报错,就表示连接成功了! print('postgreSQL数据库“db_test”连接成功!') postgreSQL数据库“db_test”连接成功! 2用Python操纵SQL数据库 在完成连接之后,通过cursor游标的方法,结合SQL语句...
``` # Python script to connect to a database and execute queries import sqlite3 def connect_to_database(database_path): connection = sqlite3.connect(database_path) return connection def execute_query(connection, query): cursor = connection.cursor() cursor.execute(query) result = cursor.fetch...
通过以下代码连接到服务器和数据库,创建一个表,然后使用 INSERT SQL 语句加载数据。此代码导入 mysql.connector 库,并使用以下方法: Python复制 importmysql.connectorfrommysql.connectorimporterrorcode# Obtain connection string information from the portalconfig = {'host':'<mydemoserver>.mysql.database.azure.com...