private void button8_Click(object sender, EventArgs e) { OraDbHelper a = new OraDbHelper(null); a.ConnectionString = "Data Source=KS_QAS_AY;User Id=FWASSY;Password=FWASSY;Connection Lifetime=120;"; string sSql = ""; sSql = " SELECT 'a' from dual "; DataTable dtStrip = a.ExecuteDataTable(sSql); a = new OraDbHelper(null); return; }