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【DM版本】:DM8
【操作系统】：银河麒麟
【CPU】:
【问题描述】*：我这边的项目中用到了临时变量，我这sql功底不强，想咨询下大佬们，sql如何替换，sql如下：
select bc.biz_order_id,
(@rownum:=if(@priorOrderNo<>bc.biz_order_no or @priorRpflag<>bc.rp_flag,0,@rownum)) resetRowNum,
(@rownum:=@rownum+if(@priorOrderNo=bc.biz_order_no and @priorRpflag=bc.rp_flag and @priorPartyid=bc.party_id,0,1)) as rownum,
(@priorOrderNo:=bc.biz_order_no) priorOrderNo, (@priorRpflag:=bc.rp_flag) priorRpflag,(@priorPartyid:=bc.party_id) priorPartyid
from bi_order_freight bc ) ss
where ss.resetRowNum is not null