I don't know of any particular sample but some places to check are:
- install the samples from the MSDN disks
- http://msdn.microsoft.com/vstudio/downloads/solutions.asp
- http://msdn.microsoft.com/vbasic/technical/tutorial/tour/default.asp

>im looking for some example, exercice step by step, demo or someonelse
>about to connect to a database without use the datacontrol and make a form to append,delete modify, shearch an query some database of any kind