name = Column(String(32), nullable=False, default='xxx') gender = Column(Boolean, nullable=False, default=True) date = Column(DateTime, onupdate=datetime.datetime.now, default=datetime.datetime.now, nullable=False)if__name__ =='__main__':# 找到所有继承Base的类,在数据库中映射成表Base.m...
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' ...
#!/usr/bin/env python # -*- coding: utf-8 -*- # @Time : 2023/3/23 21:10 # @Author : 李泽雄 # @BoKeYuan : 小家电维修 # @File : models.py # @Version : Python 3.10.10 # @Project : python3 # @Software : PyCharm import datetime from sqlalchemy.orm import sessionmaker from ...
from sqlalchemy import Column, 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(...
Column(db.String(100), nullable=False) (2)问题类 代码语言:javascript 代码运行次数:0 运行 AI代码解释 from datetime import datetime class Question(db.Model): __tablename__ = 'question'#问题表 id = db.Column(db.Integer, primary_key=True, autoincrement=True) title = db.Column(db.String(...
DATETIME()对应DATETIMEDATE()对应DATETIMESTAMP()对应TIMESTAMP 备注型:TINYTEXT,TEXT,Text()对应TEXTUnicodeText(10)对应TINYTEXT #!/usr/bin/env python # -*- coding:utf-8 -*- import sqlalchemy from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Column, Integer, String, ...
DateTime 日期时间 Column 字段设置 DateTime 日期时间类型 from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import create_engine, Column, Integer, String, Da 上海-悠悠 2022/07/19 4.4K0 SQLAlchemy使用 数据库sql云数据库 SQL Serversqlalchemy编程算法 SQLAlchemy是Python语言的一款流行...
Column(db.String(20), nullable=False) text = db.Column(db.Text, nullable=False) add_date = db.Column(db.DateTime, default=datetime.now) def __repr__(self): return "<Todo %r>" % self.id 修改todolist\manage.py,示例代码如下所示: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ...
= db.Column(db.String(8), comment="端口所属VLAN") created_at = db.Column(db.DateTime(...
from datetime import datetime from sqlalchemy import DateTime users = Table('users', metadata, Column('user_id', Integer(), primary_key=True), Column('username', String(15), nullable=False, unique=True), ➊ Column('email_address', String(255), nullable=False), Column('phone', String(...