### 方式一:# 第一步:导入# from sqlalchemy import create_engine## # 第二步:生成引擎对象# engine = create_engine(# "mysql+pymysql://root:222@127.0.0.1:3306/aaa",# max_overflow=0, # 超过连接池大小外最多创建的连接# pool_size=5, #
1 sqlalchemy快速插入数据 # sqlalchemy是什么 ORM框架,跟其他web框架没有必然联系,可以独立使用 # 安装,快速使用,执行原生sql # 创建表和删除表 -不能创建数据库 -不能修改字段(增加,删除) # 使用orm插入 from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker from models import Boo...
"NAME": "sqlite.db" } DBURI = get_db_uri(DBINFO) # 生成环境 class ProductConfig: DEBUG = False TESTING = False SQLALCHEMY_TRACK_MODIFICATIONS = False DBINFO = { "ENGINE": "mysql", "DRIVER": "pymysql
insert into `goods` (`gname`, `price`) values('手机','5899'); insert into `goods` (`gname`, `price`) values('笔记本','9999'); insert into `goods` (`gname`, `price`) values('耳机','199'); insert into `goods` (`gname`, `price`) values('手环','399'); insert into `g...
from sqlalchemy import create_engine engine = create_engine("mysql+pymysql://root:123@127.0.0.1:3306/t1", max_overflow=5) # 执行SQL # cur = engine.execute( # "INSERT INTO hosts (host, color_id) VALUES ('1.1.1.22', 3)" # ) ...
Flask-SQLAlchemy是一个用于在Flask应用程序中使用SQLAlchemy的扩展。它简化了与数据库的交互,并提供了一种简洁的方式来定义和操作数据库模型。 要使用Flask-SQLAlchemy获取插入的记录,可以按照以下步骤进行操作: 首先,确保已经安装了Flask和SQLAlchemy,并在Flask应用程序中导入它们: 代码语言:txt 复制 from flask import...
SQLALCHEMY_DATABASE_URI'] = 'mysql://root:123456@127.0.0.1/sqlbook' app.config['SQLALCHEMY...
SQLAlchemy 会自动读取 app.config 中的连接信息 #从 Flask 这个包中导入 flask 这个类fromflaskimportFlask,request,render_templatefromflask_sqlalchemyimportSQLAlchemyfromsqlalchemyimporttextapp=Flask(__name__)# 配置文件HOSTNAME='127.0.0.1'PORT=3306USERNAME='root'PASSWORD='admin123'DATABASE='my_db_...
So, SQLALCHEMY_DATABASE_URI now uses the value of the DATABASE_URL environment variable if it's available. Otherwise, it will use the SQLite URL.Make sure to import os:import osRun the tests to ensure they still pass:(env)$ python -m pytest === test session starts === platform darw...
Create a new file called "schema.sql" and add the following code:drop table if exists entries; create table entries ( id integer primary key autoincrement, title text not null, text text not null );This will setup a single table with three fields - "id", "title", and "text". ...