我设法创建一个适合我的需要的查询。 但现在我遇到了在那里给出的显示结果的方式目前查询重复每一个结果两次的问题。 我怎样才能使它正常工作，它显示了它一次。
码：
$sql = "SELECT DISTINCT contacts.contact_id, user_accounts.full_name,
contact_notes.note_name, contact_notes.type, contact_notes.note_id,
contact_posts.why_post, contact_posts.type, contact_posts.post_id
FROM contacts, user_accounts, contact_notes, contact_posts
WHERE (contacts.system_id = '$sid' AND contacts.contact_id =
user_accounts.system_id AND contact_notes.user_allowed = '$everybody' AND
contact_posts.user_allowed = '$everybody') OR (contacts.contact_id = '$sid'
AND contacts.system_id = user_accounts.system_id AND contact_notes.user_allowed
= '$everybody' AND contact_posts.user_allowed = '$everybody')
LIMIT $startrow, 20";
$query = mysql_query($sql) or die ("Error: ".mysql_error());
$result = mysql_query($sql);
if ($result == "")
{
echo "";
}
echo "";
$rows = mysql_num_rows($result);
if($rows == 0)
{
print("");
}
elseif($rows > 0)
{
while($row = mysql_fetch_array($query))
{
$noteid = htmlspecialchars($row['note_id']);
$note_title = htmlspecialchars($row['note_name']);
$postid = htmlspecialchars($row['post_id']);
$postreason = htmlspecialchars($row['why_post']);
$datetimeadded = htmlspecialchars($row['just_date']);
print("<br /> <br />$note_title - $noteid <br /><br />$postreason - $postid");
}
}
