mysql 獲取分組后的倒數第二條數據

SELECT
p.*
FROM
(
SELECT
SUBSTRING_INDEX( SUBSTRING_INDEX( GROUP_CONCAT( id ORDER BY `id` DESC ), ',', 2 ), ',',- 1 ) AS id
FROM
t_trade_record_detail
GROUP BY
user_id
HAVING
( COUNT( * ) >= 2 )
) tmp
INNER JOIN t_trade_record_detail p ON p.id = tmp.id

如果想獲取倒數第三條數據，將sql中的兩個2改成3即可！！