MySQL「轉換」似乎沒有工作

Question

我正在創建一個數據庫到CSV導出功能。 我正在使用MySQL轉換函數來轉換日期，但它似乎並沒有工作。

，我得到的錯誤是： -

string(140) "SELECT userid,firstname,lastname,email,CONVERT(VARCHAR(10),registrationdate, 101) as registrationdate from users order by userid LIMIT 0,30" You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'VARCHAR(10),registrationdate, 101) as registrationdate from users order by user' at line 1 

代碼

<?php 
include '../inc/inc.functions.php'; 
include '../dbconnector.php'; 
include '../dbpdo.php'; 
$query = "SELECT userid,firstname,lastname,email,CONVERT(VARCHAR(10),registrationdate, 101) as registrationdate from users order by userid LIMIT 0,30"; 
var_dump($query); 
$result = mysql_query($query,$db) or die(mysql_error($db)); 

$array = array(); 

# Headers 
$array[] = array("Serial Number","First Name","Last Name","Email","Registraion Date"); 

while($row = mysql_fetch_array($result)) { 
// $array[] = $row; 
    $array[] = array($row['userid'],$row['firstname'],$row['lastname'],$row['email'],$row['registrationdate']); 
} 
array_to_csv_download($array,"records.csv",","); 

?> 

可能是什麼問題？任何的意見都將會有幫助。

Answer 1

MySQL沒有CONVERT(..., 101)，這是SQL Server格式化日期時間的方式。

在MySQL中，您可以使用DATE_FORMAT('%m/%d/%Y', registrationdate);

SELECT userid,firstname,lastname,email, 
     DATE_FORMAT('%m/%d/%Y', registrationdate) as registrationdate 
     from users 
     order by userid 
     LIMIT 0,30