谁能看明白这句sql是什么意思....好难啊~
SELECT Provinces.Pr_name,
CityRefer.cr_name,
BasicOffice.bo_name,
JdName.jd_name,
Equipment.sb_no,
ISNULL(derivedtbl_2.sumalldata, 0) AS sumalldata,
ISNULL(derivedtbl_2.suminperioddata, 0) AS suminperioddata,
Equipment.sb_state,
Equipment.sb_position,
Equipment.sb_person,
Equipment.sb_tel,
Equipment.sb_coordinates,
ISNULL(derivedtbl_2.meterscount, 0) AS meterscount,
ISNULL(derivedtbl_2.Alerted, 0) AS Alerted
FROM (
SELECT MetersName_Ori.ConcentrationID,
COUNT(derivedtbl_1.mn_id) AS meterscount,
SUM(MetersName_Ori.AccuData) AS sumalldata,
SUM(derivedtbl_1.SumDataAdd) AS suminperioddata,
ISNULL(MAX(MetersName_Ori.Alerted), 0) AS Alerted
FROM (SELECT SumDataAdd, mn_id FROM dbo.MetersDataSumByPastMonth(0) AS MetersDataSumByPastMonth_1)
AS derivedtbl_1
INNER JOIN MetersName_Ori ON derivedtbl_1.mn_id = MetersName_Ori.id
GROUP BY MetersName_Ori.ConcentrationID)
AS derivedtbl_2
RIGHT OUTER JOIN Equipment ON derivedtbl_2.ConcentrationID = Equipment.sb_no
INNER JOIN BasicOffice ON Equipment.cr_id = BasicOffice.cr_id AND Equipment.bo_id = BasicOffice.bo_id AND Equipment.pr_id = BasicOffice.pr_id
INNER JOIN Provinces ON Equipment.pr_id = Provinces.Pr_id
INNER JOIN CityRefer ON Equipment.cr_id = CityRefer.cr_id AND Equipment.pr_id = CityRefer.pr_id
INNER JOIN JdName ON Equipment.pr_id = JdName.pr_id AND Equipment.cr_id = JdName.cr_id AND
Equipment.bo_id = JdName.bo_id AND Equipment.jd_id = JdName.jd_id
------解决方案--------------------
帮你整理一下,LZ如果知道这几个表示什么意思,大概就知道这个语句的含义了。
SQL code
SELECT Provinces.Pr_name ,
CityRefer.cr_name ,
BasicOffice.bo_name ,
JdName.jd_name ,
Equipment.sb_no ,
ISNULL(derivedtbl_2.sumalldata, 0) AS sumalldata ,
ISNULL(derivedtbl_2.suminperioddata, 0) AS suminperioddata ,
Equipment.sb_state ,
Equipment.sb_position ,
Equipment.sb_person ,
Equipment.sb_tel ,
Equipment.sb_coordinates ,
ISNULL(derivedtbl_2.meterscount, 0) AS meterscount ,
ISNULL(derivedtbl_2.Alerted, 0) AS Alerted
FROM ( SELECT MetersName_Ori.ConcentrationID ,
COUNT(derivedtbl_1.mn_id) AS meterscount ,
SUM(MetersName_Ori.AccuData) AS sumalldata ,
SUM(derivedtbl_1.SumDataAdd) AS suminperioddata ,
ISNULL(MAX(MetersName_Ori.Alerted), 0) AS Alerted
FROM ( SELECT SumDataAdd ,
mn_id
FROM dbo.MetersDataSumByPastMonth (0) AS MetersDataSumByPastMonth_1
) AS derivedtbl_1
INNER JOIN MetersName_Ori ON derivedtbl_1.mn_id = MetersName_Ori.id
GROUP BY MetersName_Ori.ConcentrationID
) AS derivedtbl_2
RIGHT OUTER JOIN Equipment ON derivedtbl_2.ConcentrationID = Equipment.sb_no
INNER JOIN BasicOffice ON Equipment.cr_id = BasicOffice.cr_id
AND Equipment.bo_id = BasicOffice.bo_id
AND Equipment.pr_id = BasicOffice.pr_id
INNER JOIN Provinces ON Equipment.pr_id = Provinces.Pr_id
INNER JOIN CityRefer ON Equipment.cr_id = CityRefer.cr_id
AND Equipment.pr_id = CityRefer.pr_i