using System;
using System.Data;
using System.Data.SqlClient;
class FilterSort{
static void Main(string[] args)
{
string connString = @"server = .\sqlexpress;integrated security = true;database = northwind";
string sql1 = @"select * from customers";
string sql2 = @"select * from products where unitprice < 10";
string sql = sql1 + sql2;
SqlConnection conn = new SqlConnection(connString);
try
{
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = new SqlCommand(sql, conn);
DataSet ds = new DataSet();
da.Fill(ds, "customers");
DataTableCollection dtc = ds.Tables;
string fl = "country = 'Germany'";
string srt = "companyname asc";
foreach (DataRow row in dtc["customers"].Select(fl, srt))
{
Console.WriteLine(row["CompanyName"]);
Console.WriteLine(row["ContactName"]);
}
foreach (DataRow row in dtc[1].Rows)
{
Console.WriteLine(row["productname"]);
Console.WriteLine(row["unitprice"]);
}
}
catch (Exception e)
{
Console.WriteLine("Error: " + e);
}
finally
{
conn.Close();
} Console.ReadLine();
}
}