Client-Library is a generic programming interface. This means that it is functionally independent of the servers to which it connects. Such independence allows Open Client applications to communicate with not only SQL Server, Adaptive Server, and Open Server applications, but also with non-Sybase servers if the Open Server application is a gateway.
Being functionally independent means that Open Client has no knowledge of the way in which a server may choose to implement certain functionality. It is possible that the same feature, implemented by multiple servers, will exhibit various different behaviors. The behavior of a server feature is specific to the server currently being accessed.
As an Open Client application developer, you should have a thorough understanding of the behavior of the server(s) for which you are writing an application. This includes knowing what functionality is supported and what restrictions are enforced.
