PHP MySQL排序顺序ASC/DESC只显示记录

-1

我有一个查询返回接近1000条记录。使用分页，我每页显示100条记录。很好...没问题。我也可以按降序升序排列姓氏或名字。好吧到目前为止。第一页返回姓氏从A开始到C的记录。我遇到的问题是，当我单击姓氏下降时，我得到的姓氏以Z开头的记录。我查询结束时的记录，我想得到的结果会从C到A（什么是显示我的第一页上...重复在每一页相同的功能。PHP MySQL排序顺序ASC/DESC只显示记录

这里是我...

$orderColumn  =  'lastName'; 
$orderDirection  =  'ASC'; 

if(isset($_POST["oc"]) && $_POST["oc"] !== '') { $orderColumn  = $_POST["oc"]; } 
if(isset($_POST["od"]) && $_POST["od"] !== '') { $orderDirection  = $_POST["od"]; } 

$per_page = 100; 

$query = "SELECT * FROM table as t 
      LEFT JOIN table_2 as t2 ON t.pk_uID = t2.fk_uID 
      LEFT JOIN table_3 as t3 ON t3.fk_utID = t2.pk_utID 
      WHERE t3.fk_utID = 7 and t.interviewed = 0"; 

$result = $db->query($query); 
$count =  mysql_num_rows($result); 

$total = ceil($count/$per_page); 

if ($_GET['page']) { 

    $page = $_GET['page']; 

} 


$offset = (($page-1)*$per_page); 

$query2 = "SELECT firstName as first, lastName as last FROM table 
       LEFT JOIN table_2 as t2 ON t.pk_uID = t2.fk_uID 
       LEFT JOIN table_3 as t3 ON t3.fk_utID = t2.pk_utID 
       WHERE t3.fk_utID = 7 and interviewed = 0 order by $orderColumn $orderDirection LIMIT $offset, $per_page"; 

$res = $db-> query($query2); 

while($row = mysql_fetch_array($res)){ 

echo "<span style='display: inline-block; width: 15%;'>$row[first]</span>"; 
echo "<span style='display: inline-block; width: 15%;'>$row[last]</span>"; 

}

来源

2014-10-07 rlegs

请确保你是在放置desc之前限制查询！ Aka通过推杆查询使限制成为子查询和顺序 – 2014-10-07 01:52:55

要我是什么在评论中说.. BTW我在我的手机，所以这可能是未格式化，或需要一段时间...

Select what_you_need 
From 
( select your_inner_select 
    From table t 
    LEFT JOIN table_2 as t2 ON t.pk_uID = t2.fk_uID 
    LEFT JOIN table_3 as t3 ON t3.fk_utID = t2.pk_utID 
    WHERE t3.fk_utID = 7 and interviewed = 0 LIMIT $offset, $per_page 
    ORDER BY $orderColumn ASC 
)t 
order by $orderColumn $orderDirection

来源

2014-10-07 01:57:22

要使结果集确定，在“LIMIT”子句之前的内联视图“t”中应该有一个“ORDER BY”子句。 ORDER BY子句总是ASC，不会被切换。 – spencer7593 2014-10-07 03:55:43

PHP MySQL排序顺序ASC/DESC只显示记录

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