现在我正在使用这个查询,但它向我显示了重复和不重复的列,我只想获得不重复的列,
<?
$queryy=mysql_query("SELECT
mybb_posts.pid, mybb_posts.subject,mybb_posts.message,mybb_posts.tid,
mybb_attachments.pid,mybb_attachments.aid
FROM mybb_posts
INNER JOIN mybb_attachments
USING(pid,pid)
ORDER BY `aid` DESC
LIMIT 7")or die($query."<br/><br/>".mysql_error());
while ($lista=mysql_fetch_array($queryy))
{
echo '
<img src="attachment.php?aid='.$lista["aid"].' " alt="" />
<h4><a href="#" >'.$lista["subject"].'</a></h4>
';
}
?>