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By Robert Bravery on 2013/11/27 11:48 AM
A normal database is never just one table. In fact a normal database is a collection of tables. In a relational database we have many tables related to each other. Querying these tables efficiently brings enhanced performance to a database based application.

Entity Framework offers several different ways to load the entities that are related to each other. For example, when you query for SalesOrderDetails, there are different ways that the related Products will be queried and loaded.

The...
By Robert Bravery on 2013/10/16 07:43 AM
Human Rights! What are they? So many issues surrounding Human rights. They are abused, and some are even made up to either puff up our ego or hide some criminal action or intent.

Rights and freedom have existed throughout human history. Most of the time they were generally accepted and implied. Like the right to live, and the right to defend yourself. But in the modern world and in many countries human rights and been legislated into law.

Then we have the right to water and the right...
By Robert Bravery on 2013/10/05 08:35 AM
roxy-small

So my junior computer class (where I teach python) convinced me and organised to go to...
By Robert Bravery on 2013/09/26 07:32 AM
By Robert Bravery on 2013/04/29 01:29 PM
Finding out what the most popular programming language is and or what the trend is will put you in good stead whether you are staring out or a seasoned programmer.

Finding what the latest trends are is also a good investigative method when planning a new project. This will give you a good indication as to what is available, what others are using, as well as what the long term trends are. The last thing you want is to use a language that might be the in thing today, but completely falls off...
By Robert Bravery on 2013/04/29 10:33 AM


Finally bought an Apple product. An Apple iPad mini to be exact. My wife wanted one so much. I'm not much of an Apple fan, but caved in against my better judgement and bout the Apple iPad mini.

The apple iPad and the iPad mini is a very sleek and attractive device. Owning an iPad or perhaps any Apple product is much of a fashion statement as owning a Gucci handbag or a Carducci suit. Alongside what is advertised as a great product, there is the promise of hundreds of thousands of apps, games and music. However, owning an Apple product in South Africa or any so called third world states, or in fact any Apple product such as the iPad and iPad mini is completely useless. Reason being that the Apple South African store is so restrictive that you cannot download about 80%-90% of the apps, games, movies and music....
By Robert Bravery on 2013/04/10 12:22 PM
Windows Phone 7.8 is an update for Windows Phone 7.5 phones. New features available in Windows Phone 7.8 include new customizable start screen, new tile sizes – small, medium, large, and 20 colours for theming.

That's the good news. The bad news is that not all Windows Phone 7.5 devices will be upgraded. It all depends on your country location, your make of phone and your carrier. From the Windows Phone site "The Windows Phone 7.8 update is not available in all markets or for all phones."...
By Robert Bravery on 2013/04/09 02:02 PM
Entity Framework's navigation properties maps to the relationships in the database world. In Entity Framework a navigation property on a particular entity is actually a collection of related entities. Consider the following diagram.



Here we have a product that has a relation to various other entities but in particular to SalesOrderDatail via a one-to-many relationship. We also notice that there is a section...
By Robert Bravery on 2013/04/09 11:19 AM
Anonymous types in Entity framework is a feature that enables you to create objects without declaring a class beforehand. You create the anonymous type by using the var keyword to declare your type.

Returning Anonymous Types Entity Framework is all about classes and entities. So a simple Linq query will return a correct type as expected.

IQueryable cust = from c in context.Customers select c;

Works perfectly because we already have a Customer type class declared in our Model....
By Robert Bravery on 2013/04/09 09:53 AM
Entity Framework 5 is the latest release of Microsoft ADO.Net data access. As with all data access frameworks, the prime purpose is to access and manipulate data. Entity Framework would be useless as a data access framework if it could not do so.

In my previous post on Entity Framework and CRUD operations I go through Create, Retrieve, Update and Delete operations using Linq to Entities and Entity Framework. In this article I will show how with Entity Framework we can perform multiple CRUD operations at once, allowing Entity framework to decide what to do, how to do it, and which operation to do first....
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