Csharp/CSharp Tutorial/ADO.Net/Combined Queries
Версия от 15:31, 26 мая 2010; (обсуждение)
Read resultset from a combined queries
using System;
using System.Data;
using System.Data.SqlClient;
class MultipleResults
{
static void Main(string[] args)
{
string connString = @"server = .\sqlexpress;integrated security = true;database = northwind";
string sql1 = @"select companyname,contactname from customers where companyname like "A%"";
string sql2 = @"select firstname,lastname from employees";
string sql = sql1 + sql2;
SqlConnection conn = new SqlConnection(connString);
try
{
conn.Open();
SqlCommand cmd = new SqlCommand(sql, conn);
SqlDataReader rdr = cmd.ExecuteReader();
do
{
while (rdr.Read())
{
Console.WriteLine("{0} : {1}", rdr[0], rdr[1]);
}
Console.WriteLine("".PadLeft(60, "="));
}
while (rdr.NextResult());
rdr.Close();
}
catch(Exception e)
{
Console.WriteLine("Error Occurred: " + e);
}
finally
{
conn.Close();
}
}
}