ํ‹ฐ์Šคํ† ๋ฆฌ ๋ทฐ

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declare @grade int

set @grade = 5

 

select t.aa, sum(t.ํฌ์ธํŠธ), count(t.์•„์ด๋””)
from(
 SELECT
  top 5 percent
  a.์•„์ด๋””, left(convert(varchar, a.์ƒ์„ฑ์ผ, 121), 7) aa , sum(ํฌ์ธํŠธ) ํฌ์ธํŠธ, count(distinct a.์•„์ด๋””) cc FROM ํฌ์ธํŠธ๋‚ด์—ญํ…Œ์ด๋ธ” a
  join ํšŒ์›ํ•™๋…„์ •๋ณดํ…Œ์ด๋ธ” b on (a.์•„์ด๋”” = b.์•„์ด๋””)
 where left(convert(varchar, a.์ƒ์„ฑ์ผ, 121), 7) = '2012-07'
 and a.ํฌ์ธํŠธ > 0 and b.Grade = @grade
 group by a.์•„์ด๋””, left(convert(varchar, a.์ƒ์„ฑ์ผ, 121), 7)
 order by ํฌ์ธํŠธ desc
) t
group by t.aa

 

๊ณ ๊ธ‰ํ•จ์ˆ˜๋ฅผ ์ผ์–ด์•ผ ํ•˜๋Š”๋ฐ, ์ˆ™์ง€๊ฐ€ ์•Š๋˜์„œ Pass

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