Answer Posted / kamalakannan.a

If we use c#

DataTable dt=new DataTable();

DataColumn Dc1 = new DataColumn("No", Type.GetType
("System.Int32"));

dt.Columns.Add(Dc1);

//Set Primary key
DataColumn[] dc = new DataColumn[1];
dc[0] = dt.Columns["No"];
dt.PrimaryKey = dc;

Kamal..

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