如何收集從使用兩個表中的數據連接

Question

我有2個表
表1結構：日誌]
用戶ID ||點擊||日期|| XXX || XXX |||
表2結構：[用戶]
username ||電子郵件||日期|| XXX || XXX |||

我想這樣

用戶名顯示的數據，COUNT（點擊）

我使用下面的查詢。

SELECT `user.username`,`userid`, COUNT(`userid`) as `total` 
FROM `logs` 
    INNER JOIN user ON logs.userid=user.userid 
ORDER BY total DESC 
LIMIT 5 

請quide

第一答覆後，我體改查詢和應用。查閱全文，就像這樣

$sqlptcwall=mysql_query("SELECT user.username, COUNT(ptcwalllogs.userid) AS total FROM logs INNER JOIN user ON user.userid = ptcwalllogs.userid GROUP BY user.username ORDER BY COUNT(ptcwalllogs.userid) DESC 
LIMIT 5"); 



<?php 
echo "</tr>"; 
     while($row = mysql_fetch_array($sqlptcwall)) 
     { 
echo "<tr> "; 
    echo "<td>" .$row[userid] . "</td>"; 
    echo "<td>" .$row[total] . "</td>"; 
    } 
echo "</tr> " ; 
?> 

錯誤： mysql_fetch_array（）預計參數1是資源，布爾給定在

Answer 1

SELECT user.username, COUNT(user.userid) AS total 
FROM logs 
    INNER JOIN user ON user.userid = logs.userid 
GROUP BY user.username 
ORDER BY COUNT(user.userid) DESC 
LIMIT 5