What is execute scalar in ado.net?

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Diff B/W DataSet vs DataTable

6 Answers   Star Wire,

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What is ado oledb and odbc?

0 Answers  

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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?

7 Answers  

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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

1 Answers   Nimaya,

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can we create synonymn in ms access,sql server,my sql if so explain me with example

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Define partial class?

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Name which operations can you not perform on an ado.net dataset?

0 Answers  

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Explain the difference in an abstract class and an interface?

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What does datareader object do?

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Define data access layer?

0 Answers  

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How to find the count of records in a dataset?

6 Answers  

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