How can I retrieve two tables of data at a time by using data reader? Data reader read and forward only, how is it possible to get 2 tables of data at a time?
If a table contains 20000 records . In a page at each time 100 records to be displayed. What are the steps u will take to improve performance? will you use dataset or datareader?
What is the provider and namespaces being used to access oracle database?
What is method to get XML and schema from Dataset? getXML() and get Schema ()
What are the ado.net components?
can we execute trigger normally at the desired time?
What is ado.net full form?
What is ole word?
How to store data in memory?
What are the rules to implement connection pooling?
What is dataadapter in ado.net?
How do you update database through dataset?
OleDbDataAdapter ole=new OleDbDataAdapter(new OleDbCommand ("select * from login",oleDbConnection1)); OleDbCommandBuilder cmd=new OleDbCommandBuilder(ole); ole.Fill(dataSet11,"login"); DataRow drow=dataSet11.Tables ["login"].NewRow(); drow[0]=textBox1.Text; drow[1]=textBox2.Text; drow[2]=textBox3.Text; dataSet11.Tables["login"].Rows.Add (drow); ole.UpdateCommand=cmd.GetUpdateCommand(); ole.Update(dataSet11,"login"); MessageBox.Show("one row added"); this gives exception.how to solve it