SELECT
p.* FROM t_data_publish p INNER JOIN
(select i.data_code, max(i.id) id from t_data_publish i group by i.data_code) max
ON max.id=p.id
SELECT
p.* FROM t_data_publish p INNER JOIN
(select i.data_code, max(i.id) id from t_data_publish i group by i.data_code) max
ON max.id=p.id
本文标题:分组后选取每组最新数据
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