Mysql 复合更新代码片段(mysql update join)
直接上代码
UPDATE xcwl_biz a INNER JOIN ( SELECT bizid, count(orderid) AS orders FROM xcwl_order WHERE `status` = 100 AND pay_status = 100 GROUP BY bizid ) AS b ON b.bizid = a.bizid SET a.orders = b.orders
时间戳转字符串:select from_unixtime(time),time单位是秒。或者select from_unixtime(time,format),time单位是秒。select …