Reference:
http://www.codeguru.com/vb/vb_internet/database/article.php/c7427

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Introduction
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Sometimes you need to store images in a database instead of as physical files. This sample application will show you how to build a Windows Forms interface that allows you to do the following:

1. Browse for an image on your hard disk 
2. Load the selected image into a PictureBox control for viewing 
3. Save an image displayed in the PictureBox control to the database 
4. Select an image from a ListBox control, and load it from the database

