PHP和SQL查询转换为Int的问题

Question

我把一个查询放在一起收集来自几个不同表的数据，这在SQL server studio中运行正常但是当我尝试使用ODBC连接在PHP中运行查询时，我得到以下错误

Warning: odbc_exec(): SQL error: [Microsoft][ODBC SQL Server Driver][SQL Server]Conversion failed when converting the varchar value 'Default' to data type int., SQL state 22005 in SQLExecDirect in C:\xampp\htdocs\T_A\People.php on line 40
Error in SQL

以下是查询

SELECT     ATDSchedulingRule.Name, ATDSchedulingRule.Remark, ATDShiftDetail.WorkHour,     RIGHT(ATDShiftDetail.StartTime, 6) AS StartTime, 
                  RIGHT(ATDShiftDetail.EndTime, 6) AS EndTime, RIGHT(CHINA_VISION_PubPersonnel.ID, 4) AS ClockNo,     CHINA_VISION_PubCards.CardCode
FROM         ATDShiftDetail INNER JOIN
                  ATDSchedulingRule ON ATDShiftDetail.ATDShift_Ref = ATDSchedulingRule.Shift_Ref2 INNER JOIN
                  CHINA_VISION_PubCards INNER JOIN
                  CHINA_VISION_PubPersonnel ON CHINA_VISION_PubCards.PubPersonnel_Ref = CHINA_VISION_PubPersonnel.Reference ON 
                  ATDSchedulingRule.Name = RIGHT(CHINA_VISION_PubPersonnel.ID, 4)
WHERE     (ATDShiftDetail.WorkHour > 0) AND (CHINA_VISION_PubPersonnel.Telephone > '1') AND (ATDSchedulingRule.Name = '1877')

这是PHP

 Public function GetPersonData() {
   $conn = odbc_connect('easydo', '', '');
    if (!$conn) {
        exit("Connection Failed: " . $conn);
    }

    $sql = "SELECT     ATDSchedulingRule.Name, ATDSchedulingRule.Remark, ATDShiftDetail.WorkHour,   RIGHT(ATDShiftDetail.StartTime, 6) AS StartTime, 
                  RIGHT(ATDShiftDetail.EndTime, 6) AS EndTime, RIGHT(CHINA_VISION_PubPersonnel.ID, 4) AS ClockNo, CHINA_VISION_PubCards.CardCode
FROM         ATDShiftDetail INNER JOIN
                  ATDSchedulingRule ON ATDShiftDetail.ATDShift_Ref = ATDSchedulingRule.Shift_Ref2 INNER JOIN
                  CHINA_VISION_PubCards INNER JOIN
                  CHINA_VISION_PubPersonnel ON CHINA_VISION_PubCards.PubPersonnel_Ref =     CHINA_VISION_PubPersonnel.Reference ON 
                  ATDSchedulingRule.Name = RIGHT(CHINA_VISION_PubPersonnel.ID, 4)
WHERE     (ATDShiftDetail.WorkHour > 0) AND (CHINA_VISION_PubPersonnel.Telephone > '1') AND (ATDSchedulingRule.Name = $this->Op )
";

    $rs = odbc_exec($conn, $sql);
    if (!$rs) {
        exit("Error in SQL");
    }
    var_dump($rs);
}