Sqlalchemy Essentials
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SQLAlchemy Essentials
"SQLAlchemy Essentials" "SQLAlchemy Essentials" is a definitive guide for mastering the art and science of database programming with SQLAlchemy, Python’s premier SQL toolkit and Object Relational Mapper. This comprehensive volume traverses every facet of SQLAlchemy’s ecosystem, from foundational architecture and modular installation strategies to nuanced usage of its Core and ORM layers. Readers are introduced to sophisticated patterns for engine configuration, connection management, and seamless DBAPI integration—ensuring robust connectivity and maximal compatibility across diverse database backends. Building on this strong technical base, the book delves into advanced schema modeling, powerful query construction, and extensible ORM techniques. It illuminates best practices for designing maintainable data models, crafting expressive queries, and managing schema evolution with reliable migration workflows. Topics such as transaction management, relationship mapping, complex inheritance hierarchies, and hybrid attribute definitions are fortified with practical examples—empowering readers to build scalable, maintainable, and efficient applications for any data challenge. Security, performance, and extensibility remain at the heart of "SQLAlchemy Essentials." The text provides actionable guidance for preventing SQL injection, implementing encryption, logging, and aligning with major compliance standards. Readers will discover sophisticated optimization, batching, and caching techniques, as well as modular plugin designs, event hooks, and integration strategies for both relational and emerging NoSQL platforms. With chapters covering advanced concurrency patterns and forward-looking trends in database technology, this book is an indispensable resource for both aspiring and seasoned database professionals seeking excellence with SQLAlchemy.
Essential SQLAlchemy
Author: Rick Copeland
language: en
Publisher: "O'Reilly Media, Inc."
Release Date: 2008-06-05
Essential SQLAlchemy introduces a high-level open-source code library that makes it easier for Python programmers to access relational databases such as Oracle, DB2, MySQL, PostgreSQL, and SQLite. SQLAlchemy has become increasingly popular since its release, but it still lacks good offline documentation. This practical book fills the gap, and because a developer wrote it, you get an objective look at SQLAlchemy's tools rather than an advocate's description of all the "cool" features. SQLAlchemy includes both a database server-independent SQL expression language and an object-relational mapper (ORM) that lets you map "plain old Python objects" (POPOs) to database tables without substantially changing your existing Python code. Essential SQLAlchemy demonstrates how to use the library to create a simple database application, walks you through simple queries, and explains how to use SQLAlchemy to connect to multiple databases simultaneously with the same Metadata. You also learn how to: Create custom types to be used in your schema, and when it's useful to use custom rather than built-in types Run queries, updates, and deletes with SQLAlchemy's SQL expression language Build an object mapper with SQLAlchemy, and understand the differences between this and active record patterns used in other ORMs Create objects, save them to a session, and flush them to the database Use SQLAlchemy to model object oriented inheritance Provide a declarative, active record pattern for use with SQLAlchemy using the Elixir extension Use the SQLSoup extension to provide an automatic metadata and object model based on database reflection In addition, you'll learn how and when to use other extensions to SQLAlchemy, including AssociationProxy, OrderingList, and more. Essential SQLAlchemy is the much-needed guide for every Python developer using this code library. Instead of a feature-by-feature documentation, this book takes an "essentials" approach that gives you exactly what you need to become productive with SQLAlchemy right away.
Essential SQLAlchemy
Author: Jason Myers
language: en
Publisher: "O'Reilly Media, Inc."
Release Date: 2015-11-27
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 it’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 you’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 SQLAcodegen