Sample1

# coding=gbk

from sqlalchemy import *
from sqlalchemy.orm import *


engine = create_engine('sqlite:///./sqlalchemy.db', echo=True)
metadata = http://www.mamicode.com/MetaData(engine)>

Sample2
# coding=gbk


from sqlalchemy.orm import mapper, sessionmaker #sessionmaker() 函数是最常使用的创建最顶层可用于整个应用 Session 的方法,Session 管理着所有与数据库之间的会话
from datetime import datetime
from sqlalchemy import Table, MetaData, Column, ForeignKey, Integer, String, Unicode, DateTime #会SQL的人能理解这些函数吧?
from sqlalchemy import *
from sqlalchemy.orm import *

engine = create_engine("sqlite:///tutorial.db", echo=True) #创建到数据库的连接,echo=True 表示用logging输出调试结果
metadata = http://www.mamicode.com/MetaData() #跟踪表属性>

Sample3:
# coding=gbk

from sqlalchemy import *
from sqlalchemy.orm import *
from datetime import datetime
from sqlalchemy import Table, MetaData, Column, ForeignKey, Integer, String, Unicode, DateTime

engine = create_engine("sqlite:///tutorial2.db", echo=True) #创建到数据库的连接,echo=True 表示用logging输出调试结果
metadata = http://www.mamicode.com/MetaData() #跟踪表属性>





Python SQLAlchemy 程序实例