Book Image

NHibernate 2 Beginner's Guide

By : Aaron Cure
Book Image

NHibernate 2 Beginner's Guide

By: Aaron Cure

Overview of this book

<p>NHibernate is an open source object-relational mapper, or simply put, a way to retrieve data from your database into standard .NET objects. Quite often we spend hours designing the database, only to go back and re-design a mechanism to access that data and then optimize that mechanism. This book will save you time on your project, providing all the information along with concrete examples about the use and optimization of NHibernate.<br /><br />This book is an approachable, detailed introduction to the NHibernate object-relational mapper and how to integrate it with your .NET projects. If you're tired of writing stored procedures or maintaining inline SQL, this is the book for you.<br /><br />Connecting to a database to retrieve data is a major part of nearly every project, from websites to desktop applications to distributed applications. Using the techniques presented in this book, you can access data in your own database with little or no code.<br /><br />This book covers the use of NHibernate from a first glance at retrieving data and developing access layers to more advanced topics such as optimization and Security and Membership providers. It will show you how to connect to multiple databases and speed up your web applications using strong caching tools. We also discuss the use of third-party tools for code generation and other tricks to make your development smoother, quicker, and more effective.</p>
Table of Contents (19 chapters)
NHibernate 2
Credits
About the Author
About the Reviewers
Preface
Index

Time for action – adding some tables to our Ordering system database


Let's get back to our Ordering system. If you remember, we will need a table to store the orders and one for the order items. Let's build those now!

  1. Open up SSMS again and log in to your local database server—(local)\SQLExpress.

  2. Click on the + next to the Ordering database so we can see the objects in our database.

  3. Right-click on the Tables folder, and click on New Table to bring up the new table dialog tab. This is where we will define our first table.

  4. The new table editor tab will look similar to the table in the following screenshot. In the Column Name box, enter Id, either type or select int in the Data Type field, and uncheck the Allow Nulls checkbox.

  5. Next we need to set our "Primary Key" on this field. Right-click on the black arrow to the left of the Id column, and select Set Primary Key from the drop-down menu.

    Note

    Going forward, we will complete steps 3 through 5 to create a new table. We can call these steps our "Create...