private static void exporttocsv()
{
int worker = 5;
int port = 5;
bool v = ThreadPool.SetMaxThreads(worker, port);
Console.WriteLine(v);
OracleConnection conn = DBUtils.GetDBConnection();
conn.Open();
try
{
Console.WriteLine("Переводим данные в CSV");
string sql = "SELECT * FROM CARDSTATUS4 WHERE WAITINGFOREXPORT=1";
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandText = sql;
using (DbDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
string HASH = Convert.ToString(reader.GetValue(0));
string END_DATE = Convert.ToString(reader.GetValue(1));
string STATUS = Convert.ToString(reader.GetValue(2));
string ID = Convert.ToString(reader.GetValue(4));
string WAITINGFOREXPORT = Convert.ToString(reader.GetValue(3));
//Console.WriteLine( ID + " " + HASH + " " + END_DATE + " " + STATUS + " ");
using (StreamWriter sw = new StreamWriter(@"C:\Downloads\1.csv", true, Encoding.Default))
{
sw.WriteLine(ID + " " + HASH + " " + END_DATE + " " + WAITINGFOREXPORT + " " + STATUS);
int threadCount = 0;
ManualResetEvent finished = new ManualResetEvent(false);
Interlocked.Increment(ref threadCount);
ThreadPool.QueueUserWorkItem(delegate
{
OracleConnection conn3 = DBUtils.GetDBConnection();
conn3.Open();
OracleCommand cmd1 = conn3.CreateCommand();
OracleTransaction transaction;
transaction = conn3.BeginTransaction(IsolationLevel.ReadCommitted);
cmd1.Transaction = transaction;
try
{
cmd1.Connection = conn3;
cmd1.CommandText = "UPDATE CARDSTATUS4 SET WAITINGFOREXPORT='' WHERE ID = '" + ID + "'";
cmd1.ExecuteNonQuery();
transaction.Commit();
conn3.Close();
Console.WriteLine("Обновление произошло" + ID);
}
catch (Exception e)
{
transaction.Rollback();
Console.WriteLine("Ошибка" + e);
}
finally
{
if (Interlocked.Decrement(ref threadCount) == 0)
{
finished.Set();
conn3.Close();
}
}
});
finished.WaitOne();
}
}
}
Console.WriteLine("Данные скачались в файл C:\\Downloads\\1.csv");
conn.Close();
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("## ERROR: " + ex.Message);
Console.Read();
}
}
public static void updateBD()
{
DateTime DateTime = DateTime.Now;
OracleConnection conn = DBUtils.GetDBConnection();
conn.Open();
string DateTime2 = DateTime.ToShortDateString();
//int start = 0;
//int finish = 10;
//string sql = "select * FROM(SELECT ROWNUM rn, v.HASH, v.END_DATE,v.STATUS,v.WAITINGFOREXPORT,v.ID FROM CARDSTATUS2 v) WHERE rn >= "+start+ " AND rn <= " + finish + "";
string sql = "SELECT HASH,STATUS,WAITINGFOREXPORT,ID from CARDSTATUS4 where END_DATE < to_date('" + DateTime2 + "', 'DD/MM/YY') and WAITINGFOREXPORT is NULL";
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandText = sql;
int works = 0;
int threads = 0;
try
{
using (DbDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
//string HASH = Convert.ToString(reader.GetValue(0));
// string STATUS = Convert.ToString(reader.GetValue(1));
// string WAITINGFOREXPORT = Convert.ToString(reader.GetValue(2));
string ID = Convert.ToString(reader.GetValue(3));
ThreadPool.GetAvailableThreads(out works, out threads);
// Console.WriteLine(works.ToString(), threads.ToString());
//Console.WriteLine(HASH+" "+STATUS+" " + WAITINGFOREXPORT +" "+ ID);
int threadCount = 0;
AutoResetEvent waitHandler = new AutoResetEvent(true);
ManualResetEvent finished = new ManualResetEvent(false);
Interlocked.Increment(ref threadCount);
ThreadPool.QueueUserWorkItem(delegate
{
OracleConnection conn1 = DBUtils.GetDBConnection();
conn1.Open();
OracleCommand cmd1 = conn1.CreateCommand();
OracleTransaction transaction;
transaction = conn.BeginTransaction(IsolationLevel.ReadCommitted);
cmd1.Transaction = transaction;
try
{
string sql11 = "UPDATE CARDSTATUS4 SET STATUS = 'EXPIRED', WAITINGFOREXPORT='1' WHERE ID = '" + ID + "'";
cmd1.Connection = conn1;
cmd1.CommandText = sql11;
cmd1.ExecuteNonQuery();
conn1.Close();
transaction.Commit();
//Console.WriteLine("Завершился" + ID);
}
catch (Exception e)
{
transaction.Rollback();
Console.WriteLine("Ошибка" + e);
}
finally
{
finished.Set();
if (Interlocked.Decrement(ref threadCount) == 0)
{
finished.Set();
conn1.Close();
}
// Console.WriteLine("Завершился" + ID);
}
});
finished.WaitOne();
//bool b = ManualResetEvent.WaitAll(new WaitHandle[] { waitHandler });
// if (b == false)
// {
// Console.WriteLine("");
// }
}
}
Console.WriteLine(works.ToString(), threads.ToString());
Console.WriteLine("STATUS и WAITINGFOREXPOR обновлен\n");
conn.Close();
}
catch (Exception ex)
{
Console.WriteLine("## ERROR: " + ex.Message);
Console.Read();
}
}