从oci_num_rows php oracle返回零结果

Question

当我执行此查询时，oci_num_rows的结果始终为零，有谁可以帮忙吗？

  $sql="SELECT * FROM apps.xx_fa_by_loc_mob where site_name ='$location' AND  tag_number='$data1'";

$res= oci_parse($link, $sql);
oci_execute($res);

$var=oci_num_rows($res);
echo $var;

任何帮助将是巨大的！

Answer 1

这可能是原因 ：

Note:

This function does not return number of rows selected! For SELECT statements this function will return the number of rows, that were fetched to the buffer with oci_fetch*() functions.