php中使用暫存資料表查詢資料的一個例子

複製代碼 代碼如下:$sql3="CREATE TEMPORARY TABLE atmp_table(uid int(11),dnum int(20) not null)";
mysql_query($sql3);
$sql3="INSERT into atmp_table(uid,dnum) SELECT uid,count(soid) as dnum
FROM `cy_score2`
where (nei='下載' or nei='下載試題')
group by uid having dnum>150
order by dnum desc limit 10";
mysql_query($sql3);
$sql3="select a.uid,count(b.tid) as unum from atmp_table a left join cy_test b on a.uid=b.uid
group by b.uid
order by a.dnum desc,unum asc limit 5";
$query4=mysql_query($sql3);
$rs=mysql_fetch_array($query4) ;