ADO.NET Part II: The Disconnected Layer
This chapter picks up where the previous one left off and digs deeper into the .NET database APIs. Here, you will be introduced to the disconnected layer of
ADO.NET. When you use this facet of
ADO.NET, you are able to model database data in memory within the calling tier using numerous members of the
System.Data namespace (most notably,
DataRelation). By doing so, you are able to provide the illusion that the calling tier is continuously connected to an external data source, while in reality it is simply operating on a local copy of relational data.
While it is completely possible to use this "disconnected" aspect of
ADO.NET without ever making ...