[Description] Represents a parameter or name/value pair that is passed to a command or query. [Interface] 
IDataParameter
I D b C o n n e c t i o n
I D b T r a n s a c t i o n
I D b C o m m a n d
I D a t a P a r a m e t e r
I D a t a P a r a m e t e r C o l l e c t i o n
I D a t a R e a d e r