表结构:
代码:
代码语言:javascript
复制#Author Kang
import sqlalchemy
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column,Integer,String
from sqlalchemy.orm import sessionmaker
#创建对象的基类:
Base = declarative_base()
#定义User对象:
class User(Base):
#表的名字:
__tablename__ = 'user'
#表的结构:
userid = Column(Integer,primary_key=True)
username = Column(String(20))
age = Column(Integer)
department = Column(String(20))
#初始化数据库连接
engine = create_engine("mysql pymysql://kang:123456@10.3.152.35/test",encoding="utf-8")
#创建session类型
DBSession = sessionmaker(bind=engine)
#创建session对象
session = DBSession()
#先查询,后删除
session.query(User).filter(User.username == "Jack").delete()
session.commit()
session.close()