i had read information about sce and i had not unsderstood a little thing:
is it possible or not to use a dataset with that version of sql server i have a class that access the database with some functions and one of then return a dataset. the dataset is not to be used because it does not make sense with sql server compact edition or it cannot by use at all cause sql server compact edition does not support it
thkx and by the way i think that it's a great product!

sql compact edition and methods
nocturnal beast
Yes, you can use dataset with SQL CE, but on devices it is not always the right solution, due to resource constraints.
For a good tutorial see this article: http://msdn2.microsoft.com/en-us/library/bb219484.aspx