在使用SQLAlchemy时,连接Oracle数据库需要设置一些连接参数。以下是一些常见的连接参数及其说明: host:Oracle数据库的主机名或IP地址。 port:Oracle数据库的端口号,默认为1521。 user:连接数据库所使用的用户名。 password:连接数据库所使用的密码。 database:要连接的Oracle数据库的SID或服务名。 charset:连接使用的字...
SQLAlchemy 是一个强大的 Python SQL 工具包和 ORM(对象关系映射)库,它允许开发者高效地与数据库进行交互。使用 `DATABASE_URL` 连接到数据库是 SQLAlchem...
fromplugin.pulgin_sqlalchamyimportengine,Basedefregister_database():# 预先创建数据表from.cmsimportuser Base.metadata.create_all(bind=engine) 5、api/__inti__.py 定义 create_app 方法,注册路由,注册插件,加载配置等。 fromfastapiimportFastAPI,Requestimporttimefromroutersimportregister_routerfrommodelsimport...
SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL. SQLAlchemy provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a ...
DATABASE = '1' USERNAME = 'root' PASSWORD = 'root' DB_URI = "mysql+mysqlconnector://{username}:{password}@{host}:{port}/{db}?charset=utf8".format(username=USERNAME,password=PASSWORD,host=HOSTNAME,port=PORT,db=DATABASE) 2.然后使用`create_engine`创建一个引擎`engine`, ...
1. 安装 SQLAlchemy pip install flask- sqlalchemy 1. 2. 3. 4. 2. 安装 mysql pip install flask- mysqldb 1. 2. 3. 4. 3 . 创建数据库 create database flask_test charset utf8; From flask import Flask # 将 SQLAlchemy 导入进来
Alembic is a database migrations tool written by the author ofSQLAlchemy. A migrations tool offers the following functionality: Can emit ALTER statements to a database in order to change the structure of tables and other constructs Provides a system whereby "migration scripts" may be constructed;...
conn = sqlite3.connect('my_database.db')使用 SQLAlchemy from sqlalchemy import create_engine # 创建数据库引擎 engine = create_engine('sqlite:///my_database.db')执行 SQL 查询 使用 SQLite cursor = conn.cursor()cursor.execute("SELECT FROM my_table")rows = cursor.fetchall()使用 SQL...
https://docs.sqlalchemy.org/en/14/core/metadata.html#creating-and-dropping-database-tables engine = create_engine('sqlite:///:memory:') metadata_obj=MetaData() user= Table('user', metadata_obj, Column('user_id', Integer, primary_key=True), ...
await database.execute(query=query, values={'email': func.pgm_sys_encrypt('hello@gmail.com', 'secret_key'), 'gender': 'male'}) 它不起作用。我也试过了 query = f""" insert into customers (email, gender) values (pgm_sys_encrypt('hello@gmail.com', 'secret_key'), :gender) ...