Essential SQLAlchemy

Couverture du livre « Essential SQLAlchemy » de Rick Copeland aux éditions O Reilly

0 note

Résumé:

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... Lire la suite

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.

Donner mon avis

Les derniers avis

Ce livre n'a pas encore d'avis. Donnez le vôtre et partagez-le avec la communauté de lecteurs.com

Où trouver ce livre en librairie ?

Service proposé en partenariat avec Place des Libraires

Discussions autour de ce livre

Il n'y a pas encore de discussion sur ce livre
Soyez le premier à en lancer une !

Widget

Code à intégrer dans votre page

Code à intégrer dans votre page

Les lecteurs en parlent...

Lancez une discussion

Pour lancer une discussion, vous devez être connecté...
Vous n'avez pas encore de compte ? Rendez-vous ici et laissez-vous guider !

Du même auteur

MongoDB Applied Design Patterns Rick Copeland O'REILLY MEDIA

Voir tous les livres de Rick Copeland

Autres éditions

Essential SQLAlchemy Rick Copeland O'REILLY MEDIA

Voir toutes les éditions