Enums “我该怎么做？”；“订购”；不止是在专栏上？

这是我的疑问：

SELECT count(oi.id) imgCnt, o.*, 
IF(pricet=2,c.currency_value*o.attributes_36*o.price,
c.currency_value*o.price) AS pprice, od.title, oi.image, 
MIN(oi.id), ( c.currency_value * o.price ) AS fprice, 
ag.agent_name, DATE_FORMAT( o.date_added, '%d-%m-%Y') as dadded 
FROM i_offers_12 o 
LEFT JOIN i_agents ag ON o.agents_id = ag.id 
LEFT JOIN i_currencies c ON o.currencies_id = c.id 
LEFT JOIN i_offers_details od ON ( o.id = od.offers_id AND od.languages_id = 1 ) 
LEFT JOIN i_offers_images oi ON ( oi.offers_id = o.id AND oi.o_id = '12' ) 
WHERE ( o.offer_status='active' OR o.offer_status='sold') 
AND actions_id = '1' 
AND c.id = o.currencies_id 
AND o.counties_id = '2' 
AND o.cities_id = '3' 
GROUP BY o.id
ORDER BY dadded
DESC

我想在dadded（日期类型）和

offer\u status

（枚举类型）之后进行排序。

---

我想首先显示所有具有

报价状态

=“活动”并按

数据排序的元素，然后显示所有具有
报价状态
=“售出”并按数据排序的元素。我该怎么做？thx
我相信您可以使用

ORDER BY offer_status, dadded

你可以用逗号，比如

ORDER BY supplier_city DESC, supplier_state ASC;

要排序的字段必须是select语句的一部分：

  SELECT count(oi.id) imgCnt, o.*, 
    IF(pricet=2,c.currency_value*o.attributes_36*o.price,
    c.currency_value*o.price) AS pprice, od.title, oi.image, 
    MIN(oi.id), ( c.currency_value * o.price ) AS fprice, 
    ag.agent_name, DATE_FORMAT( o.date_added, '%d-%m-%Y') as dadded ,
    offer_status
    FROM i_offers_12 o 
    LEFT JOIN i_agents ag ON o.agents_id = ag.id 
    LEFT JOIN i_currencies c ON o.currencies_id = c.id 
    LEFT JOIN i_offers_details od ON ( o.id = od.offers_id AND od.languages_id = 1 ) 
    LEFT JOIN i_offers_images oi ON ( oi.offers_id = o.id AND oi.o_id = '12' ) 
    WHERE ( o.offer_status='active' OR o.offer_status='sold') 
    AND actions_id = '1' 
    AND c.id = o.currencies_id 
    AND o.counties_id = '2' 
    AND o.cities_id = '3' 
    AND o.offer_status='active' 
    GROUP BY o.id
    ORDER BY offer_status, dadded
    DESC

请注意，通常应按所有非汇总字段（o*）分组，
如果（价格t=2，c.货币价值*o.属性*o.价格，
c、 货币价值*o.price）作为许可证，od.title，oi.image，（c.货币价值*o.price）作为fprice，
ag.agent名称、日期格式（添加了o.DATE，'%d-%m-%Y'）作为数据，
报价（U状态）

MySQL并没有强制执行它，但其他数据库（如Oracle）却执行它