Dataset.Clone() will copy just the dataset structure including all the datatables, schemas, relations and constraints; it will not copy the data. Dataset.Copy() will copy both dataset structure and data.
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WebService will support only DataSet.
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Tuesday, May 13, 2008
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Yes I have certainly worked on ADO.Net. ADO.net encompasses two groups of classes: content components and managed provider components. The content components include DataSet class and other supporting classes as DataTable, DataRow, DataColumn and DataRelation. The DataSet class is a lightweight cache of a particular database from the data store. It allows reading and writing of data and schema in XML. ADO.Net involves disconnected datasets because it is geared towards a distributed architecture. All tables and relations in a DataSet are exposed through the DataSet tables and Relations properties. E.g. Using System; Using System.Data; DataSet ds = new DataSet("MyDS"); Ds.Tables.Add ("Order"); Ds.Tables["Order"].Columns.Add("OrderNo" Type.GetType("System.Int32")); The DataSet tightly integrates with XML using the methods WriteXml, ReadXml, WriteXmlSchema and ReadXmlSchema
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Saturday, May 10, 2008
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This parameter is used to verify the physical existence of a vsam file and close
the file if it is not previously closed.
Syntaz is -
VERIFY FILE(<ddname>) OR VERIFY DATASET(<dataset name>)
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Wednesday, March 12, 2008
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