Answer / vivek

Command object is only one to execute queries in the
backend.
Ex:
SqlConnection cn=new SqlConnection();
SqlCommand cmd=new SqlCommand("SELECT * FROM EMP",cn);
cmd.ExecuteNonQuery();
cmd.ExecuteReader();
cmd.ExecuteScalar();
Cmd.ExecuteXmlReader();
command object has only these 4 methods to execute queries
in the backend.

Answer / shwetha

by the namespace using System.Data.Sqlclient


by using Sqlcommand

Dim cmd as new Sqlcommand("Queries");

what is data Adapter?

26 Answers   CMC, CSS, IBM,

---

What is ado.net tutorial?

0 Answers  

---

What is oledb connection?

0 Answers  

---

Explain the advantages and disadvantages of using datalist?

0 Answers  

---

What is serialization and de-serialization in .net?

0 Answers  

---

What do you know about ADO.NET's objects and methods?

0 Answers   NA,

---

What are three methods for displaying data in a syncfusion datagrid

0 Answers  

---

describe about the ado.net object model

4 Answers   TCS,

---

Which are the different IsolationLevels ?

3 Answers  

---

What are the data providers in ADO.NET framework?

0 Answers  

---

Define isolation?

0 Answers  

---

Whate are different types of Commands available with DataAdapter ?

2 Answers  

---