有时间了就要慢慢看，死守DJANGO ORM，明显没有SQLAlchemy有优势。
因为SQLAlchemy针对整个PYTHON都是有用的。
找了本书，慢慢撸。
《Essential.SQLAlchemy.2nd.Edition》
创建数据库的代码：
#coding=utf-8 from datetime import datetime from sqlalchemy import (MetaData, Table, Column, Integer, Numeric, String, Boolean, DateTime, ForeignKey, ForeignKey, create_engine) metadata = MetaData() cookies = Table('cookies', metadata, Column('cookie_id', Integer(), primary_key=True), Column('cookie_name', String(50), index=True), Column('cookie_recipe_url', String(255)), Column('cookie_sku', String(55)), Column('quantity', Integer()), Column('unit_cost', Numeric(12, 2)) ) users = Table('users', metadata, Column('user_id', Integer(), primary_key=True), Column('username', String(15), nullable=False, unique=True), Column('email_address', String(255), nullable=False), Column('phone', String(20), nullable=False), Column('password' ,String(25), nullable=False), Column('created_on', DateTime(), default=datetime.now), Column('updated_on', DateTime(), default=datetime.now, onupdate=datetime.now) ) orders = Table('orders', metadata, Column('order_id', Integer(), primary_key=True), Column('user_id', ForeignKey('users.user_id')), Column('shipped', Boolean(), default=False) ) line_items = Table('line_items', metadata, Column('line_items_id', Integer(), primary_key=True), Column('order_id', ForeignKey('orders.order_id')), Column('cookie_id', ForeignKey('cookies.cookie_id')), Column('quantity', Integer()), Column('extended_cost', Numeric(12, 2)) ) engine = create_engine('mysql+pymysql://user:password@1.2.7.9:3306/cookies') metadata.create_all(engine)
