小编hom*_*742的帖子

我有一个要加速的查询：

SELECT 
  sum(case when FlagDTD = 1 then Success else 0 end)   as SuccessDTD
, sum(case when FlagDTD = 1 then [Error] else 0 end)   as ErrorDTD
, round(sum(case when FlagDTD = 1 then Success else 0 end) * 100.0 / sum(FlagDTD),2) 
    as RateDTD
, sum(case when FlagYTD = 1 then Success else 0 end)   as SuccessYTD
, sum(case when FlagYTD = 1 then [Error] else 0 end)   as ErrorYTD
, round(sum(case when FlagYTD = 1 then Success else 0 …