Title
Essential SQLAlchemy,Used
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Essential SQLAlchemy introduces a highlevel opensource 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 serverindependent SQL expression language and an objectrelational 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 builtin 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 reflectionIn addition, you'll learn how and when to use other extensions to SQLAlchemy, including AssociationProxy, OrderingList, and more.Essential SQLAlchemy is the muchneeded guide for every Python developer using this code library. Instead of a featurebyfeature documentation, this book takes an 'essentials' approach that gives you exactly what you need to become productive with SQLAlchemy right away.
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- Q: How many pages does Essential SQLAlchemy have? A: Essential SQLAlchemy has two hundred thirty pages. This comprehensive guide provides in-depth information on using SQLAlchemy effectively.
- Q: What are the dimensions of this book? A: The dimensions of Essential SQLAlchemy are seven point zero one inches in length, zero point five seven inches in width, and nine point one nine inches in height.
- Q: What type of binding does this book have? A: Essential SQLAlchemy is available in paperback binding. This makes it lightweight and easy to handle for reading and referencing.
- Q: What programming language does this book focus on? A: Essential SQLAlchemy focuses on the Python programming language. It offers insights on how to access relational databases using Python effectively.
- Q: Who is the author of Essential SQLAlchemy? A: The author of Essential SQLAlchemy is Rick Copeland. He provides a developer's perspective on using SQLAlchemy.
- Q: What skill level is Essential SQLAlchemy suitable for? A: Essential SQLAlchemy is suitable for both beginners and experienced Python developers. It caters to those looking to enhance their database programming skills.
- Q: How can I use SQLAlchemy for database connections? A: You can use SQLAlchemy to connect to multiple databases simultaneously. The book provides practical examples to guide you through the process.
- Q: Is this book suitable for learning object-relational mapping? A: Yes, this book is suitable for learning object-relational mapping. It explains how to map Python objects to database tables effectively.
- Q: Are there any practical examples in Essential SQLAlchemy? A: Yes, Essential SQLAlchemy includes practical examples. It demonstrates how to create a simple database application and run queries.
- Q: What is the best way to care for this book? A: To care for Essential SQLAlchemy, store it in a cool, dry place away from direct sunlight. Avoid bending the pages to maintain its condition.
- Q: Is this book safe for beginners in programming? A: Yes, Essential SQLAlchemy is safe for beginners. It introduces fundamental concepts and tools in a clear and accessible manner.
- Q: Can I return the book if I’m not satisfied? A: Yes, you can return Essential SQLAlchemy if you are not satisfied. Check the seller's return policy for specific guidelines.
- Q: What do I do if my book arrives damaged? A: If your Essential SQLAlchemy arrives damaged, contact the seller immediately. They will guide you through the return or replacement process.
- Q: Does this book cover custom types in SQLAlchemy? A: Yes, Essential SQLAlchemy covers how to create custom types. It explains when to use custom types over built-in ones for your schema.
- Q: Are there extensions to SQLAlchemy discussed in the book? A: Yes, the book discusses various extensions to SQLAlchemy, including AssociationProxy and SQLSoup. These help enhance functionality and ease of use.
- Q: What is the primary focus of Essential SQLAlchemy? A: The primary focus of Essential SQLAlchemy is to provide a practical guide for using SQLAlchemy. It emphasizes productivity with relational databases.