mysql 查询关联语句 时间戳转化为时间格式

SELECT o.out_trade_no,o.price,s.c_name as subject_name,m.nickname,FROM_UNIXTIME(o.pay_time, '%Y-%m-%d %H:%i:%s')as pay_time     FROM `hy_order` AS o     LEFT JOIN `hy_course_subjects` as s ON o.subjec

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