Answer / raghumadhav tirunagari

diffgram is an xml grammer. it talks about state of node in
xml file.

Answer / vanitha g

XML format used for DataSet serialization is known as
DiffGram. DiffGrams contains the tags that specify the
original and new state of data

1.Its an XML format.
2.Current and original versions of Data elements can be
identified through Diffgram.
3.Here, loading of contents can be done through dataset.
4.It serialize its contents for transport across a network
connection.
5.The column values from both the Original and Current row
versions, row error information, and row order will be
included.
6.Its a format intended for network data exchange and .NET
remoting.

Answer / dfd

A DiffGram is an XML format. It is used to identify current
and original versions of data elements. A DataSet may use a
DiffGram format to load and persist the contents, and
further to serialize its contents for porting across a
network connection. Whenever a DataSet is written as a
DiffGram, the DataSet populates the DiffGram with all the
important information to accurately recreate the contents.
Note that schema of the DataSet is not recreated. This
includes column values from both the Current and the
Original row versions, row error information, and row order.

You need to retrieve data from a Microsoft SQL Server 2000. Currently you are using an oleDbConnection object to connect to the database server. You need to be able to retrieve the data from the database server in XML format. Which approach would be the most efficient? Select all that apply. Each answer constitutes part of the whole answer. a) Change to the SQL .NET provider. b) Use the ExecuteXmlReader() method of the xxxCommand object c) Use the DOM to create the XML document. d) Use the XmlDocument.Load() method to create the XML Document.

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