SqlConnection Conn = new SqlConnection("server=localhostuid=sapwd=database=ddb")
SqlDataAdapter da = new SqlDataAdapter("select *from book",con)
DataSet ds = new DataSet()
da.Fill(ds,"book")
SqlCommand updateCmd = new SqlCommand("Update book set bookname='javascript'",Conn)
da.UpdateCommand=updateCmd
da.Update(ds)
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