Image Saving explanation

I have manage to write images on an sql server 2008

But i see that in the image record writing the same bytes in all of the images

And also it creates on the remote disk under a special catalogue a file which finally is the i开发者_如何转开发mage

Is there anybody which can explain me the flow chart of writing an image in sql server?

What is contained in the image record?

Here are a couple of tutorials on saving image data in a FILESTREAM column in SQL Server 2008:

http://blogs.msdn.com/rdoherty/archive/2007/10/12/getting-traction-with-sql-server-2008-filestream.aspx

http://lennilobel.wordpress.com/2009/09/22/sql-server-2008-filestream-part-1-of-3-introducing-filestream/

http://lennilobel.wordpress.com/2009/10/06/sql-server-2008-filestream-part-2-of-3-enabling-and-using-filestream/

http://lennilobel.wordpress.com/2009/10/20/sql-server-2008-filestream-part-3-of-3-using-the-opensqlfilestream-api/