[Description] Represents a unique session with a data source. In the case of a client/server database system, the session may be equivalent to a network connection to the server. [Interface] 
IDbConnection
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