これを照会するための効率的または簡単な方法はありますか?たとえば、サーバーの負荷を最小限に抑えるためです。ありがとう!
dbテーブル
qId WKDT WK_ENDT SUM_LVL_Sort ADOCD ocd OfficeName WKLY_AVG WeekCode
------ ------ ----------------------- ------------ ----- --- ------------- -------- --------
201112 201110 2011-10-28 00:00:00.000 19.00 NULL NAT NATION 2.23 n
201112 201110 2011-10-28 00:00:00.000 13.00 NULL F09 SAN FRANCISCO 2.20 n
201112 201111 2011-11-25 00:00:00.000 19.00 NULL NAT NATION 2.39 n
201112 201111 2011-11-25 00:00:00.000 13.00 NULL F09 SAN FRANCISCO 2.14 n
201112 201112 2011-12-30 00:00:00.000 19.00 NULL NAT NATION 2.37 n
201112 201112 2011-12-30 00:00:00.000 13.00 NULL F09 SAN FRANCISCO 2.18 n
これは私が必要とするレイアウトです
WK_ENDT adocd ocd OfficeName SUM_LVL_Sort 10 11 12
----------------------- ----- --- ------------- ------------ ---- ---- ----
2011-10-07 00:00:00.000 NULL F09 SAN FRANCISCO 13.00 2.2 2.14 2.18
2011-10-07 00:00:00.000 NULL NAT NATION 19.00 2.23 2.39 2.37
tqlクエリ
select TOP 1 (WK_ENDT),
,SUM_LVL_Sort
,ADOCD as adocd
,Alias as ocd
,OfficeName
,(select WKLY_AVG from kpi.dbo.tb_ssi_rzli where SUM_LVL_Sort = 19.00 and RIGHT(wkdt,2) = '10' and weekcode = 'n' ) as [10]
,(select WKLY_AVG from kpi.dbo.tb_ssi_rzli where SUM_LVL_Sort = 19.00 and RIGHT(wkdt,2) = '11' and weekcode = 'n' ) as [11]
,(select WKLY_AVG from kpi.dbo.tb_ssi_rzli where SUM_LVL_Sort = 19.00 and RIGHT(wkdt,2) = '12' and weekcode = 'n' ) as [12]
from kpi.dbo.tb_ssi_rzli
where SUM_LVL_Sort = 19.00 and right(qId,2) = '12' and WeekCode = 'n'
order by WK_ENDT desc
bluefeetのクエリ結果
WK_ENDT SUM_LVL_Sort adocd ocd OfficeName 10 11 12
----------------------- ------------ ----- --- ---------- ---- ---- ----
2011-12-30 00:00:00.000 19.00 NULL NAT NATION NULL NULL 2.37
2011-11-25 00:00:00.000 19.00 NULL NAT NATION NULL 2.39 NULL
2011-10-28 00:00:00.000 19.00 NULL NAT NATION 2.23 NULL NULL