Download NHibernate 2 Beginner's Guide: Rapidly retrieve data from by Aaron Cure PDF

By Aaron Cure

This can be a beginner's advisor to NHibernate that begins from floor 0. Successive chapters construct upon past recommendations, whereas the pattern code provides numerous how you can accomplish ordinary facts entry initiatives. inside a number of chapters you may have a working program utilizing NHibernate to retrieve and shop data.We learn all the issues required to get a practical facts entry layer applied by way of writing the smallest amount of code attainable, providing strategies alongside tips on how to deal with specific facet situations or events as they arise.When you've got accomplished some of the routines you might have operating data-bound machine and net purposes, in addition to an figuring out of the way to enforce NHibernate on your personal applications.This ebook is for brand spanking new and pro builders of .NET net or computing device functions who desire a larger approach to entry database information. it's a uncomplicated advent to NHibernate, with adequate info to get an effective origin in utilizing NHibernate. a few complicated strategies are awarded the place applicable to augment performance or in occasions the place they're ordinary.

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19. Save the table with the name OrderItem. When you are prompted to save the changes to the two tables, click on Yes. [ 33 ] Database Layout and Design 20. Refresh the Object Explorer, and you should be able to see both of our tables under the Tables folder of the Ordering database. What just happened? Now that we have created our OrderHeader and the related OrderItem tables, we are ready to start entering orders in our system! Our tables are fully functional, with data columns, Primary Keys, relationships, the works!

Now we want to create our OrderHeader class to represent the OrderHeader table in the database. Data label underneath Solution 'Ordering' (1 project) and click Add | Class. 8. Data dialog appears, Class will automatically be selected. cs, and click on the Add button. [ 42 ] Chapter 3 9. We will end up with a basic class to start off. NET, it will look as follows: Public Class OrderHeader End Class 10. Now we just need to add our default constructor logic. NET, we will add our logic. NET code: Public Class OrderHeader Public Sub New() End Sub End Class [ 43 ] A Touch of Class 11.

Inner d. All of the above Normal Form You may have heard the term Third Normal Form (3NF) when talking about databases and wondered what it meant. Quite simply, Normalization is a way to construct databases to standardize their appearance and to reduce duplication of data. Of the six normal forms (1st-5th and Boyce-Codd Normal Form or BCNF, another name for 3NF), 3NF is the most widely discussed, but First Normal Form (1NF) is the one we are most concerned with. To be 1NF compliant, we need to eliminate duplicative columns from the same table, and create separate tables for each group of related data and identify each row with a unique column or set of columns (the Primary Key).

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