<!-- 該數據查出的結果與mysql 一致 -->
select d.* from
(select *, Row_Number() OVER (partition by "date","type","name" order by "date" desc) rank from "imonitor"."l_dos_bro" ) // 這一行為分組關鍵 分組字段為 date,type,name
as d where d."date">='2017-05-22 10:59:11' and d."date"<='2017-05-25 13:59:11' and d.rank=1 // 根據條件並取 rank的第一個值
<!-- SEPARATOR -->
mysql 里的用法 GROUP_CONCAT(c_remark SEPARATOR '<br>') as remark
達夢數據庫用法 REPLACE(WM_CONCAT("c_remark") ,',','<br>') as remark