I have defined a field of type Binary(16). The field holds a byte value.

If I do a select command, SqlParameter.SqlDbType will return Binary. However, if I do an update command, SqlParameter.SqlDbType returns VarBinary.

Can someone explain me why this is like that?

I need to have a universal way of recognizing the type. Should I always add my parameter with a type VarBinary so to end up with the same recognition at either a select or update command?