方法二:使用 SQLAlchemy 的 create_engine 函数连接 MySQL 数据库 除了使用 pymysql 库连接 MySQL 数据库之外,我们还可以使用 SQLAlchemy 的 create_engine 函数创建 MySQL 数据库连接引擎,并使用 Pandas 库中的read_sql函数直接将查询结果转化为 Pandas dataframe 对象。 # 步骤 1:创建 MySQL 数据库连接引擎 from...
from sqlalchemy import create_engine from conf import settings import pymysql # mysql设置HOST = ''PORT = 3306USER = ''PASSWD = ''DB = 'shzy_map'CHATSET = 'utf8 class ConnMysqlDB: """ 连接与操作数据库 con = ConnMysqlDB() #使用前需创建实例 conn = con.connMysql() # 先建立连接 "...
) ENGINE=InnoDB AUTO_INCREMENT=3419587CHARACTERSET=utf8mb4 COLLATE=utf8mb4_general_ci ROW_FORMAT=Dynamic;SETFOREIGN_KEY_CHECKS=1;INSERTINTO`iplist` (`id`, `ip_address`, `input_date`, `mac_address`)VALUES(2367872,'192.168.59.101','20220311',NULL);INSERTINTO`iplist` (`id`, `ip_address`...
#engine=create_engine("dialect+driver://usrname:password@host:port/database",echo=False,pool_size=100,pool_recycle=3600,pool_pre_ping=True),创建连接引擎对象,会根据指定数据库进行sql api的调用处理 ①dialent,数据库类型,如MySQL ②driver,数据库连接驱动,没有+driver时即默认MySQLdb,选哪种驱动,就装...
from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker, Session def get_db_session(host: str, port: str, username: str, password: str, database_name: str) -> Session: engine = create_engine(f'mysql+pymysql://{username}:{password}@{host}:{port}/{database_name}'...
bind=create_engine(“mysql+pymysql://username:password@ip:port/database?charset=charset”,echo_pool=“debug”,echo=True ,connect_args={'read_timeout': 3}) flask_sqlalchemy参数调整示例: app.config['SQLALCHEMY_ENGINE_OPTIONS'] = {'echo':True,'echo_pool':'debug','connect_args':{'read_...
engine=create_engine( 'mysql+pymysql://{0}:{1}@{2}:{3}/{4}?charset=utf8'.format('mysql_username','mysql_password','127.0.0.1', str(server.local_bind_port),'mysql_database_name'), encoding='utf-8') engine.execute('show tables') ...
from sqlalchemy import create_engine, Table, Column, Integer, String, MetaData from sqlalchemy.orm import sessionmaker # 创建数据库引擎 engine = create_engine('mysql+pymysql://yourusername:yourpassword@localhost/yourdatabase') # 创建会话 Session = sessionmaker(bind=engine) session = Session() ...
sql="""CREATETABLEUSER1(idINTauto_incrementPRIMARYKEY,nameCHAR(10)NOTNULLUNIQUE,ageTINYINTNOTNULL)ENGINE=innodbDEFAULTCHARSET=utf8;""" # 执行SQL语句 cursor.execute(sql)# 关闭光标对象 cursor.close()# 关闭数据库连接 conn.close() 2、新增数据 ...
engine = create_engine('mysql+mysqlconnector://root:123456@127.0.0.1:3306/FOF?charset=utf8') 查了一些原因,试着改了密码 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '';FLUSH PRIVILEGES; mysql.ini文件下default_authentication_plugin=mysql_native_password 也都正常,仍解决...