有几张表没有权限,所以跑不起来。

 

目测黄色部分比较坑爹,死了n多脑细胞才看懂,又死了n多脑细胞才改出来。对5034进行了2次扫描,并多次分组排序求和。(分组和排序算法相对来说比较耗性能)

 

改为只扫描一次,一次编号操作。

 

 

 

这个没有什么既定的规则,就是使劲想各种奇葩办法简化。(这个改写就是利用了oracle在排序的时候,把null当成无穷大。而在sqlserver上就不适用了,因为sqlserver在排序的时候把null当无穷小)

 

 

 

黄色部分可改为下面的代码。

 

 

 

select *

 

  FROM (select f1_5034,

 

               decode(min(rn_a) - 1, 1, 0, min(rn_a) - 1) ylqk,

 

               min(rn_b) - 1 bbqk

 

          from (select case

 

                         when nvl(f25_5034, 0) > 0 then null

 

                         else rn end rn_a,

 

                       case

 

                         when f25_5034 Is not Null then null

 

                         else rn end rn_b,

 

                       f1_5034

 

                  from (Select f1_5034,

 

                               f3_5034,

 

                               f25_5034,

 

                               row_number() Over(partition By f1_5034 Order By f3_5034 Desc) rn

 

                          From wind.tb_object_5034

 

                         Where f3_5034 Like '%1231'))

 

         group by f1_5034)

 

 where bbqk is not null

 

 

 

--------------------原代码-------------------------

 

 

 

 

 

Select fdate,zqdm,zqmc,jysc,xzjq,dqsyl,fsynx,ffxjg,fpmje,fsqpmlv,ffxcs,ffxfs,fscfxr,

 

fssdd,fjxqsr,jxjzr,fxgm,cqxypj,dqxypj,'NULL' gjxypj,jhht,fldzrdb,ffxgsdm,fgsjc,zqlx,nvl(bbqk,0) bbqk,fxrq,

 

Case When nvl(zzc,0)<>0  Then 1 Else 0 End As xxplqk,ylqk ylqk,

 

hxzbczl,zzc,jzc,DbrXyPj,rzzt,shzt,'1' lsyjs,Jjbz, cxsmc, cxqsr,cxjzr,bjyy,lvlx,syyhdb,FCqXypj,FDqXypj,FGjxypj,FGnxypjJgd,FGjxypjJgd,DCqXypj,

 

'NULL' DGjxypj,flvjz,'NULL' FYsSyr, '0' fsdq ,'NULL' fsdqsr ,'NULL' fsdjzr ,'NULL' Fsdjzr2 ,fjcjq,flljq, '1' ffxzt,flvjzlb,'1' Ffxlx, fdbrdm,fdbr,Fdbrxz,FdbrSnmJzc,fsndgncqxy,Fdbrgnpjjg,

 

Ffxrlb,fzgr,fzgjzr,x.f13_5015 fzgbl,x.f12_5015 fzgjg, 'NULL' fzgzqdm,fsfsh,'NULL' fjkyy,fdbrzt,fggxx,

 

(Select F68_1854

 

  From wind.tb_object_1854 T

 

 Where nvl(BbQk, 0) >= 1

 

   And F1_1854 = F25_4516

 

   And F4_1854 =

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