Question

我有以下mysql查询

SELECT cibor_users.ID, 
    cibor_users.display_name,
    cibor_users.user_email,
    cibor_users.user_url,
GROUP_CONCAT(meta_value) AS customer_address
FROM cibor_users 
   JOIN cibor_usermeta  ON cibor_users.ID = cibor_usermeta.user_id
WHERE cibor_usermeta.meta_key IN ('paupress_address_one_1','paupress_address_city_1','paupress_address_state_1','paupress_address_postal_code_1','telephone','user_type','primary_business','realtor_designation')
GROUP BY cibor_usermeta.user_id

然后使用以下信息在表格中显示信息：

<td ><?php echo $row['display_name'];?></td>
<td ><?php echo $row['user_url'];?></td>
<td ><?php echo $row['user_email'];?></td>
<td ><?php echo $row['customer_address'];?></td>

问题是“WHERE”语句中的值是随机且不一致地显示的。所以我添加了一个ORDER BY语句：

SELECT cibor_users.ID, 
    cibor_users.display_name,
    cibor_users.user_email,
    cibor_users.user_url,
GROUP_CONCAT(meta_value ORDER BY meta_value ASC SEPARATOR ' ') AS customer_address
FROM cibor_users 
    JOIN cibor_usermeta  ON cibor_users.ID = cibor_usermeta.user_id
WHERE cibor_usermeta.meta_key IN ('paupress_address_one_1','paupress_address_city_1','paupress_address_state_1','paupress_address_postal_code_1','telephone','user_type','primary_business','realtor_designation')
GROUP BY cibor_usermeta.user_id

但是，这会按字母顺序排列“Customer_Address”所需的信息。我需要显示的信息与它们放在“WHERE”语句中的顺序相同。

我尝试使用ORDER BY FIELD

WHERE cibor_usermeta.meta_key IN ('paupress_address_one_1','paupress_address_city_1','paupress_address_state_1','paupress_address_postal_code_1','telephone','user_type','primary_business','realtor_designation')
ORDER BY FIELD (cibor_usermeta.meta_key, ['paupress_address_one_1','paupress_address_city_1','paupress_address_state_1','paupress_address_postal_code_1','telephone','user_type','primary_business','realtor_designation'])
GROUP BY cibor_usermeta.user_id

有没有办法根据WHERE IN语句指定连接信息的确切顺序？

Answer 1

在订单条款

中你必须做一个案例

group_concat(meta_value 
            order by
             case meta_key when 'paupress_adress_one1' then 0
                           when 'paupress_address_city_1' then 1
                           when 'paupress_address_state_1' then 2
                           --etc.
             end
             separator ' ')

ORDER group_concat使用WHERE IN值

1 个答案: