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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
namespace AccesDB
{
public class DBSQL : iAccesDB1
{
private SqlConnection MaConn = new SqlConnection("ezklhfgpiqhgbfozhg");
private static volatile DBSQL instance;
private static object syncRoot = new Object();
private DBSQL() {}
public static DBSQL Instance
{
get
{
if (instance == null)
{
lock (syncRoot)
{
if (instance == null)
instance = new DBSQL();
}
}
return instance;
}
}
public void Connection()
{
MaConn.Open();
}
public void CloseConnection()
{
MaConn.Close();
}
public double getID(String _isin)
{
SqlDataReader rd;
double res = -9999;
SqlCommand cd = new SqlCommand("select cpn from tbassetOLD where isin='" + _isin + "'", MaConn);
try
{
rd = cd.ExecuteReader();
if (rd.HasRows)
{
while (rd.Read())
res = double.Parse(rd["cpn"].ToString());
}
}
catch (Exception ex)
{
throw new Exception("1000: " + ex.Message);
}
return res;
}
}
} |
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