2、连接数据库 SQLALCHEMY_DATABASE_URI flask_sqlalchemy 配置数据连接的参数 不同数据库连接方式不同: Mysql mysql://username:password@hostname[:port]/database Sqlite(windows) sqlite:///d:/python/python.sqlite Sqlite(linux) sqlite:python/python.sqlite Pgsql: postgresql://username:password@hostname/...
pgsql :postgresql://username:password@hostname/database sqlite(linux) :sqlite:///absolute/path/to/database sqlite(windows) :sqlite:///c:/absolute/path/to/database 三. 初始化示例 from flaskimport Flask from flask_sqlalchemyimport SQLAlchemy base_dir = os.path.abspath(os.path.dirname(__file...
sqlalchemy.exc.ProgrammingError: (psycopg2.ProgrammingError) type "banner_status" does not exist LINE 1: ALTER TABLE banner ADD COLUMN status banner_status [SQL: 'ALTER TABLE banner ADD COLUMN status banner_status'] 为什么迁移不会创建类型“banner_status”? 我究竟做错了什么? $ pip freeze alembic=...
产品链接:https://cloud.tencent.com/product/pgsql 云数据库 MongoDB:提供高性能、可扩展的NoSQL数据库服务,适用于大规模的非结构化数据存储和分析。产品链接:https://cloud.tencent.com/product/cosmosdb 云数据库 TBase:提供高性能、分布式的关系型数据库服务,具备分布式事务、弹性伸缩等特性,适用于高并发业务...
pgsql : postgresql://username:password@hostname/database sqlite(linux) : sqlite:///absolute/path/to/database sqlite(windows) : sqlite:///c:/absolute/path/to/database 三、初始化示例 from flask import Flask from flask_sqlalchemy import SQLAlchemy base...
pgsql :postgresql://username:password@hostname/database sqlite(linux) :sqlite:///absolute/path/to/database sqlite(windows) :sqlite:///c:/absolute/path/to/database 三. 初始化示例 from flaskimport Flask from flask_sqlalchemyimport SQLAlchemy base...
pgsql : postgresql://username:password@hostname/database sqlite(linux) : sqlite:///absolute/path/to/database sqlite(windows) : sqlite:///c:/absolute/path/to/database 三. 初始化示例 from flask import Flask from flask_sqlalchemy import SQLAlchemy base...
mysql :mysql://username:password@hostname/databasepgsql :postgresql://username:password@hostname/databasesqlite(linux) :sqlite:///absolute/path/to/databasesqlite(windows) :sqlite:///c:/absolute/path/to/database AI代码助手复制代码 三、初始化示例 from...