Essential SQLAlchemy

Essential SQLAlchemy

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Dive into SQLAlchemy, the popular, open-source code library that helps Python programmers work with relational databases such as Oracle, MySQL, PostgresSQL, and SQLite. Using real-world examples, this practical guide shows you how to build a simple database application with SQLAlchemy, and how to connect to multiple databases simultaneously with the same metadata. SQL is a powerful language for querying and manipulating data, but ita€™s tough to integrate it with your application. SQLAlchemy helps you map Python objects to database tables without substantially changing your existing Python code. If youa€™re an intermediate Python developer with knowledge of basic SQL syntax and relational theory, this book serves as both a learning tool and a handy reference. Essential SQLAlchemy includes several sections: SQLAlchemy Core: Provide database services to your applications in a Pythonic way with the SQL Expression Language SQLAlchemy ORM: Use the object relational mapper to bind database schema and operations to data objects in your application Alembic: Use this lightweight database migration tool to handle changes to the database as your application evolves Cookbook: Learn how to use SQLAlchemy with web frameworks like Flask and libraries like SQLAcodegenFor the remainder of this chapter, we are going to build up a set of tables that wea#39; ll use throughout Part I. In Example 11, we create a table that could be used to store the cookie inventory for our online cookie delivery service. Example 11.


Title:Essential SQLAlchemy
Author: Jason Myers, Rick Copeland
Publisher:"O'Reilly Media, Inc." - 2015-11-27
ISBN-13:

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