from sqlalchemy import create_engine, Column, Integer, String, Float, Text, ForeignKey, DateTime from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker, relationship, backref # 数据库信息 host = '127.0.0.1' port = '3306' database = 'db_to_sqlalchemy' ...
show create table students;#查看创建数据表的命令 importdatetimeimporttimefromsqlalchemyimportcreate_engine, Column, Integer, String, TIMESTAMP, textfromsqlalchemy.ext.declarativeimportdeclarative_basefromsqlalchemy.ormimportsessionmaker Base=declarative_base() engine= create_engine("mysql+pymysql://root:ro...
我有一个声明声明的表,如: class Greeting(Base): __tablename__ = 'greetings' id = Column(Integer, primary_key=True) author = Column(String) content = Column(Text) date = Column(DateTime) def __init__(self, author, content, date = datetime.datetime.now()): 浏览4提问于2011-02-05得...
DateTime, Integer, Stringfrom sqlalchemy.sql import func, extractfrom sqlalchemy.orm import column_property, validatesclass User(Base):__tablename__ = "users"id = Column(Integer, primary_key=True, index=True)name = Column(String, nullable=True)surname = Column(String, nullable=True)birth_year...
# 导入对应的包,fromsqlalchemyimportColumn,String,DateTime,Boolean,create_engine,Integer,Text,ForeignKey,VARCHAR,CHARfromsqlalchemy.ext.declarativeimportdeclarative_basefromsqlalchemy.ormimportrelationship# 创建基类Base=declarative_base()# 服务器classServerData(Base):__tablename__="server"# 表名id=Column(...
# models.py import datetime from sqlalchemy.orm import sessionmaker from sqlalchemy.orm import scoped_session from sqlalchemy import ( create_engine, Column, Integer, String, Enum, DECIMAL, DateTime, Boolean, UniqueConstraint, Index ) from sqlalchemy.ext.declarative import declarative_base ...
from sqlalchemy import Column, String, Integer, Float, DECIMAL, Boolean, DateTime, create_engine,BigInteger from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.sql import func engine = create_engine("mysql+pymysql://{}:{}@{}/{}".format(setting.User, setting.Passwd, setting...
在这个例子中,__tablename__属性指定了表的名称,Column用于定义表的列,Integer、String和DateTime分别表示整数、字符串和日期时间类型的列。unique=True和nullable=False是列级约束,分别表示列值必须唯一且不能为空。 fromsqlalchemyimportColumn,Integer,String,DateTimefromsqlalchemy.ext.declarativeimportdeclarative_base...
DateTime:传递datetime.datetime()进去 Time:传递Datetime.time()进去 String:字符类型,使用时需要指定长度,区别于Text类型 Text:文本类型 LONGTEXT:长文本类型 fromsqlalchemy import create_engine,Column,Integer,Float,Boolean,DECIMAL,Enum,Date,DateTime,Time,String,Textfromsqlalchemy.dialects.mysql import LONGTEXT...
classUser(Base):__tablename__='user'id=Column(Integer,primary_key=True,autoincrement=True)username=Column(String(50),nullable=False)password=Column(String(50))creatime=Column(DateTime,default=datetime.now) 2、posts表(上传图片的模型,针对图片的) ...