Question

我有一个简单的SELECT语句，一个可选的WHERE子句和一个ORDER BY但是在循环到sqlsrv_fetch_object（）时我没有得到任何记录：

if (!$conn) 
{
    echo "no connection!\n";
}
$data = array();
$qry = "SELECT DISTINCT lineid, ord_num, prod_num, description, prod_type, style, color, sizetype, qty1, qty2, qty3, qty4, qty5, qty6, qty7, qty8, qty9, qty10, qty11, qty12, qty13, qty14, qty15, ext_id, decoration1, design1, iposition1, cccode1, decoration2, design2, iposition2, cccode2, decoration3, design3, iposition3, cccode3, '', design4, iposition4, cccode4, decoration5, design5, iposition5, cccode5, decoration6, design6, iposition6, cccode6, decoration7, design7, iposition7, cccode7, last_mod FROM DataLIVE.dbo.sodetail ";
if ($last_run_date)
{
    $qry .= "WHERE last_mod > '" . $last_run_date . "' "; 
}
$qry .= "ORDER BY last_mod ASC";
fwrite($fp, $qry . "\n");

if ($st = sqlsrv_query($conn, $qry))
{

    while ($row = sqlsrv_fetch_object($st))
    {
        $row->last_mod      = $row->last_mod->format('Y-m-d H:i:s');
        fwrite($fp, "Last Mod::: " . $row->last_mod . "\n");
        $data[]     = $row;
    }
    sqlsrv_free_stmt($st);
    unset($row, $st);
}
else 
{
    $sqlerr = sqlsrv_errors();
    foreach ($sqlerr as $key)
    {
        foreach ($key as $col => $val)
        {
            echo "Error Key: " . $col . "\nError Msg: " . $val . "\n";
            fwrite($fp, "Error Key: " . $col . "\nError Msg: " . $val . "\n");
        }
    }

    $data = FALSE;
}
return $data;

我不知道为什么sqlsrv_fetch_object（）没有返回任何内容。此外，我可以从我正在编写的日志中将查询直接复制并粘贴到SQL Server Studio中，它解析得很好。我的日志文件中没有任何内容我在while循环中写出last_mod日期。

几分钟前我发布了一个略有不同的问题，有人建议删除SELECT语句中空字符串的选择，但是我需要那个空字符串占位符。

sqlsrv_fetch_object（）不返回结果

0 个答案: