【发布时间】：2010-03-02 18:10:30
【问题描述】：
我正在尝试对 SQL Server 2005 中运行缓慢的存储过程进行故障排除。我正在分析执行计划并看到 45% 的 SORT，但我没有使用 ORDER 子句。这是什么原因造成的。
更新 SP（清理并在 OR 上进行了更改）
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[Rpt_D]
@AsOfDate datetime,
@LEA int,
@SchoolName varchar(max),
@Grade varchar(8000),
@Gender varchar(8000),
@Race varchar(8000),
@UserID int
AS
SET NOCOUNT ON
Declare
@AsOfMonth int,
@AsOfDay int
SET @AsOfMonth = DATEPART(MONTH, @AsOfDate)
SET @AsOfDay = DATEPART(DAY, @AsOfDate)
CREATE TABLE #TempSchool
(
SchoolESIID int,
LEAESIID int
)
CREATE TABLE #TempRace
(
Race varchar(60)
)
CREATE TABLE #TempGender
(
GenderCode char(1)
)
CREATE TABLE #TempGrade
(
GradeCode char(2)
)
DECLARE
@UserLevel nvarchar(10),
@ESILEAList nvarchar(max),
@ESISchoolList nvarchar(max)
EXEC Staging.dbo.GetUserFilter @userId = @userid, @userLevel = @Userlevel out, @ESILEAList = @ESILEAList out, @ESISchoolList = @ESISchoolList out
-- Parse parameters into tables
INSERT INTO #TempSchool
SELECT ParsedValue, PrntESIID
FROM dbo.tfnParseStringIntoTable(@SchoolName, ',')
INNER JOIN dbo.CALPADSOrg co ON ParsedValue = ChESIID
INSERT INTO #TempRace
SELECT ParsedValue FROM dbo.tfnParseStringIntoTable(@Race, ',')
INSERT INTO #TempGender
SELECT ParsedValue FROM dbo.tfnParseStringIntoTable(@Gender, ',')
INSERT INTO #TempGrade
SELECT ParsedValue FROM dbo.tfnParseStringIntoTable(@Grade, ',')
SELECT DISTINCT
ser.ESIIDLeaRptng AS LEARptngEsiID,
ser.EsiIDSchlAtndnc AS SchoolESIID,
resi.CDSEttyCode AS SchlAtndncCode,
resi.CDSEttyName AS SchlAtndncName,
ser.StuKey,
s.StuIDStwdCal,
ISNULL(sdr.StuLastOrSrnmLgl,'') + ', ' + ISNULL(sdr.StuFstNameLgl,'') + ' ' + ISNULL(sdr.StuMdlNameLgl,'') AS StudentName,
ser.StuIDLcl,
rg.GndrCode AS GndrCode,
ISNULL(
CASE
WHEN sdr.StuHspncEnctyIndctr = 'Y'
THEN 'Hispanic'
WHEN sdr.StuEnctyMsngIndctr = 'Y' OR sdr.StuRaceMsngIndctr = 'Y'
THEN 'Missing'
WHEN srr.RaceCatg2Code IS NOT NULL
THEN 'Multiple'
ELSE srr.FedEnctyRaceCatgCode
END, 'Missing') AS RaceEnthnicity,
rgl.GrdLvlCode AS GrdLvlCode,
ISNULL(
CASE relass.EngLangAcqstnStatStCode
WHEN 'EL'
THEN 'Y'
ELSE 'N'
END, 'N') AS EnglishLearner,
ISNULL(
CASE
WHEN ISNULL(sdr.StuIneligSnorImgrntIndctr, 'Y') = 'N'
AND ISNULL(ssr.StuEnrldUSSchlLessThanThreCumltvYrsIndctr, 'N') = 'Y'
AND ISNULL(sdr.rptCntryCode, 'US') != 'US'
AND ISNULL(res.EnrlmtStatCode, '0') = '10'
AND ISNULL(
CASE
WHEN sdr.StuBirMonth < @AsOfMonth
THEN DATEDIFF(YEAR, sdr.StuBirDate, @AsOfDate)
WHEN sdr.StuBirMonth = @AsOfMonth AND sdr.StuBirDay <= @AsOfDay
THEN DATEDIFF(YEAR, sdr.StuBirDate, @AsOfDate)
ELSE DATEDIFF(YEAR, sdr.StuBirDate, GETDATE()) -1
END,0) BETWEEN 3 AND 21
AND ISNULL(rgl.GrdLvlCode, 'AD') != 'AD'
THEN 'Y'
ELSE 'N'
END, 'N') AS TitleIIIEligibleImmigrantFlag,
ISNULL(
CASE
WHEN ISNULL(rep.EduPgmCode, 000) = 175 OR ISNULL(rhel.HighstEduLvlCode, 0) = 14
THEN 'Y'
ELSE 'N'
END, 'N') AS SocioEconomicallyDisadvantagedFlag,
ISNULL(
CASE
WHEN relass.EngLangAcqstnStatStCode IN ('EL', 'RFEP') AND relatp.EngLangArtsTestProfcyCode = 'N'
THEN 'Y'
ELSE 'N'
END, 'N') AS LimitedEnglishProficientFlag,
ISNULL(
CASE rep.EduPgmCode
WHEN '135'
THEN 'Y'
ELSE 'N'
END, 'N') AS TitleIPartCMigrantFlag,
ISNULL(
CASE rep.EduPgmCode
WHEN '144'
THEN 'Y'
ELSE 'N'
END, 'N') AS SpecialEducationFlag ,
ISNULL(
CASE rep.EduPgmCode
WHEN '127'
THEN 'Y'
ELSE 'N'
END, 'N') AS GiftedAndTalentedFlag
From
dbo.StuEnrlmt ser
INNER JOIN dbo.Stu s ON ser.StuKey = s.StuKey
INNER JOIN #TempSchool ts ON ser.EsiIDSchlAtndnc = ts.SchoolESIID
AND (ser.EsiIDLEARptng = @LEA)
INNER JOIN RefEductlSrvcInstn resi ON ts.SchoolESIID = resi.ESIID
INNER JOIN dbo.RefEnrlmtStat res ON ser.EnrlmtStatKey = res.EnrlmtStatKey
LEFT JOIN dbo.RefStuExitCatg rsec ON ser.StuExitCatgKey = rsec.StuExitCatgKey
LEFT JOIN dbo.StuEngLangArt selar ON ser.StuKey = selar.StuKey
AND (selar.EfctvStartDate <= @AsOfDate)
AND ((selar.EfctvEndDate IS NULL) OR (selar.EfctvEndDate >= @AsOfDate))
LEFT JOIN dbo.RefEngLangAcqstnStatSt relass ON selar.EngLangAcqstnStatStKey = relass.EngLangAcqstnStatStKey
LEFT JOIN dbo.RefEngLangArtsTestProfcy relatp ON selar.ElaTestProfcyDsgntnKey = relatp.EngLangArtsTestProfcyKey
INNER JOIN dbo.StuDemo sdr ON ser.StuKey = sdr.StuKey
INNER JOIN dbo.RefGndr rg ON sdr.GndrCodeKey = rg.GndrCodeKey
LEFT JOIN dbo.StuStat ssr ON ser.StuKey = ssr.StuKey
AND (ssr.EfctvStartDate <= @AsOfDate)
AND ((ssr.EfctvEndDate IS NULL) OR (ssr.EfctvEndDate >= @AsOfDate))
INNER JOIN dbo.StuGrdLvl sglr ON ser.StuKey = sglr.StuKey
INNER JOIN dbo.RefGrdLvl rgl ON sglr.GrdLvlKey = rgl.GrdLvlKey
LEFT JOIN dbo.StuPgm spr ON ser.StuKey = spr.StuKey
AND (spr.StuEduPgmMbrshpCatgStartDate <= @AsOfDate )
AND ((spr.StuEduPgmMbrshpCatgEndDate IS NULL) OR (spr.StuEduPgmMbrshpCatgEndDate >= @AsOfDate))
LEFT JOIN dbo.RefEduPgm rep ON spr.EduPgmCodeKey = rep.EduPgmCodeKey
LEFT JOIN dbo.StuPrntOrGrdn spogr ON ser.StuKey = spogr.StuKey
AND (spogr.EfctvStartDate <= @AsOfDate)
AND ((spogr.EfctvEndDate IS NULL) OR (spogr.EfctvEndDate >= @AsOfDate))
LEFT JOIN dbo.RefHighstEduLvl rhel ON spogr.PrntOrGrdnHighstEduLvlCodeKey = rhel.HighstEduLvlKey
LEFT JOIN dbo.vwStuRaceRptng srr ON ser.StuKey = srr.StuKey
AND (srr.EfctvStartDate <= @AsOfDate)
AND ((srr.EfctvEndDate IS NULL) OR (srr.EfctvEndDate >= @AsOfDate))
INNER JOIN #TempRace tr ON
ISNULL(
CASE
WHEN sdr.StuHspncEnctyIndctr = 'Y'
THEN 'Hispanic'
WHEN sdr.StuEnctyMsngIndctr = 'Y' OR sdr.StuRaceMsngIndctr = 'Y'
THEN 'Missing'
WHEN srr.RaceCatg2Code IS NOT NULL
THEN 'Multiple'
ELSE srr.FedEnctyRaceCatgCode
END, 'Missing') = tr.Race
INNER JOIN #TempGender tg ON rg.GndrCode = tg.GenderCode
INNER JOIN #TempGrade tgr ON rgl.GrdLvLCode = tgr.GradeCode
WHERE (ser.StuEsiRltnspExpctdSchlStartDate <= @AsOfDate)
AND ((ser.WithdrlDate IS NULL) OR (ser.WithdrlDate >= @AsOfDate))
AND (res.EnrlmtStatCode = '10')
AND (ISNULL(rsec.StuExitCatgCode, 'N/A') != 'N470')
AND (sdr.EfctvStartDate <= @AsOfDate)
AND ((sdr.EfctvEndDate IS NULL) OR (sdr.EfctvEndDate >= @AsOfDate))
AND (sglr.EfctvStartDate <= @AsOfDate)
AND ((sglr.EfctvEndDate IS NULL) OR (sglr.EfctvEndDate >= @AsOfDate))
AND ((spr.DeleteFlag IS NULL) OR (spr.DeleteFlag = 'N'))
AND ((spogr.DeleteFlag IS NULL) OR (spogr.DeleteFlag = 'N'))
AND ((sglr.DeleteFlag IS NULL) OR (sglr.DeleteFlag = 'N'))
AND ((selar.DeleteFlag IS NULL) OR (selar.DeleteFlag = 'N'))
AND ((sdr.DeleetFlag IS NULL) OR (sdr.DeleetFlag = 'N'))
AND ((ser.DeleteFlag IS NULL) OR (ser.DeleteFlag = 'N'))
DROP TABLE #TempSchool
DROP TABLE #TempRace
DROP TABLE #TempGender
DROP TABLE #TempGrade
vwStuRaceRptng 视图
SELECT sr.StuRaceKey, sr.StuKey, rr1.RaceCatgCode, rr1.RaceCatgName, rferc1.FedEnctyRaceCatgKey, rferc1.FedEnctyRaceCatgCode, rferc1.FedEnctyRaceCatgName,
rr2.RaceCatgCode AS RaceCatg2Code, rr2.RaceCatgName AS RaceCatg2Name, rferc2.FedEnctyRaceCatgKey AS FedEnctyRaceCatg2Key,
rferc2.FedEnctyRaceCatgCode AS FedEnctyRaceCatg2Code, rferc2.FedEnctyRaceCatgName AS FedEnctyRaceCatg2Name, rr3.RaceCatgCode AS RaceCatg3Code,
rr3.RaceCatgName AS RaceCatg3Name, rferc3.FedEnctyRaceCatgKey AS FedEnctyRaceCatg3Key, rferc3.FedEnctyRaceCatgCode AS FedEnctyRaceCatg3Code,
rferc3.FedEnctyRaceCatgName AS FedEnctyRaceCatg3Name, rr4.RaceCatgCode AS RaceCatg4Code, rr4.RaceCatgName AS RaceCatg4Name,
rferc4.FedEnctyRaceCatgKey AS FedEnctyRaceCatg4Key, rferc4.FedEnctyRaceCatgCode AS FedEnctyRaceCatg4Code,
rferc4.FedEnctyRaceCatgName AS FedEnctyRaceCatg4Name, rr5.RaceCatgCode AS RaceCatg5Code, rr5.RaceCatgName AS RaceCatg5Name,
rferc5.FedEnctyRaceCatgKey AS FedEnctyRaceCatg5Key, rferc5.FedEnctyRaceCatgCode AS FedEnctyRaceCatg5Code,
rferc5.FedEnctyRaceCatgName AS FedEnctyRaceCatg5Name, sr.EfctvStartDate, sr.EfctvEndDate
FROM dbo.StuRace AS sr INNER JOIN
dbo.RefRace AS rr1 ON sr.RaceCatgKey = rr1.RaceCatgKey LEFT OUTER JOIN
dbo.RefRace AS rr2 ON sr.RaceCatg2Key = rr2.RaceCatgKey LEFT OUTER JOIN
dbo.RefRace AS rr3 ON sr.RaceCatg3Key = rr3.RaceCatgKey LEFT OUTER JOIN
dbo.RefRace AS rr4 ON sr.RaceCatg4Key = rr4.RaceCatgKey LEFT OUTER JOIN
dbo.RefRace AS rr5 ON sr.RaceCatg5Key = rr5.RaceCatgKey LEFT OUTER JOIN
dbo.RefFedEnctyRaceCatg AS rferc1 ON rr1.FedEnctyRaceCatgKey = rferc1.FedEnctyRaceCatgKey LEFT OUTER JOIN
dbo.RefFedEnctyRaceCatg AS rferc2 ON rr2.FedEnctyRaceCatgKey = rferc2.FedEnctyRaceCatgKey LEFT OUTER JOIN
dbo.RefFedEnctyRaceCatg AS rferc3 ON rr3.FedEnctyRaceCatgKey = rferc3.FedEnctyRaceCatgKey LEFT OUTER JOIN
dbo.RefFedEnctyRaceCatg AS rferc4 ON rr4.FedEnctyRaceCatgKey = rferc4.FedEnctyRaceCatgKey LEFT OUTER JOIN
dbo.RefFedEnctyRaceCatg AS rferc5 ON rr5.FedEnctyRaceCatgKey = rferc5.FedEnctyRaceCatgKey
WHERE (ISNULL(sr.DeleteFlag, 'N') = 'N')
旧SP
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATEPROCEDURE [dbo].[Rpt_D]
@AsOfDate datetime,
@LEA int,
@SchoolName varchar(max),
@Grade varchar(8000),
@Gender varchar(8000),
@Race varchar(8000),
@UserID int
AS
Declare
@AsOfMonth int,
@AsOfDay int
select @AsOfMonth = datepart(month, @AsOfDate)
select @AsOfDay = datepart(day, @AsOfDate)
Create table #TempSchool
(
SchoolESIID int,
LEAESIID int
)
Create table #TempRace
(
Race varchar(60)
)
Create table #TempGender
(
GenderCode char(1)
)
Create table #TempGrade
(
GradeCode char(2)
)
declare
@UserLevel nVarchar(10),
@ESILEAList nvarchar(max),
@ESISchoolList nvarchar(max)
exec Staging.dbo.GetUserFilter @userId=@userid,@userLevel=@Userlevel out,@ESILEAList=@ESILEAList out,@ESISchoolList=@ESISchoolList out
-- Parse parameters into tables
Insert into #TempSchool
select
ParsedValue, PrntESIID
from
dbo.tfnParseStringIntoTable(@SchoolName, ',')
inner join dbo.CALPADSOrg co on ParsedValue = ChESIID
Insert into #TempRace
select ParsedValue from dbo.tfnParseStringIntoTable(@Race, ',')
Insert into #TempGender
select ParsedValue from dbo.tfnParseStringIntoTable(@Gender, ',')
Insert into #TempGrade
select ParsedValue from dbo.tfnParseStringIntoTable(@Grade, ',')
Select DISTINCT
ser.ESIIDLeaRptng as LEARptngEsiID,
ser.EsiIDSchlAtndnc as SchoolESIID,
resi.CDSEttyCode as SchlAtndncCode,
resi.CDSEttyName as SchlAtndncName,
ser.StuKey,
s.StuIDStwdCal,
isnull(sdr.StuLastOrSrnmLgl,'') + ', ' + isnull(sdr.StuFstNameLgl,'') + ' ' + isnull(sdr.StuMdlNameLgl,'') as StudentName,
ser.StuIDLcl,
rg.GndrCode as GndrCode,
isnull(case
when sdr.StuHspncEnctyIndctr = 'Y' then 'Hispanic'
when sdr.StuEnctyMsngIndctr = 'Y' or sdr.StuRaceMsngIndctr = 'Y' then 'Missing'
when srr.RaceCatg2Code is not null then 'Multiple'
else srr.FedEnctyRaceCatgCode
end, 'Missing') as RaceEnthnicity,
rgl.GrdLvlCode as GrdLvlCode,
isnull(
case relass.EngLangAcqstnStatStCode
when 'EL' then 'Y'
else 'N'
end, 'N') as EnglishLearner,
isnull(
case
when
-- if a value is null, set it to any value that will evaluate to false in the expression
-- only students with valid information should be counted as Title III Eligible Immigrants
isnull(sdr.StuIneligSnorImgrntIndctr, 'Y') = 'N' AND
isnull(ssr.StuEnrldUSSchlLessThanThreCumltvYrsIndctr, 'N') = 'Y' AND
isnull(sdr.rptCntryCode, 'US') != 'US' AND
isnull(res.EnrlmtStatCode, '0') = '10' AND
-- Calculate age from birth date
isnull(case
when sdr.StuBirMonth < @AsOfMonth
then datediff(year, sdr.StuBirDate, @AsOfDate)
when sdr.StuBirMonth = @AsOfMonth and sdr.StuBirDay <= @AsOfDay
then datediff(year, sdr.StuBirDate, @AsOfDate)
else datediff(year, sdr.StuBirDate, getdate()) -1
end,0) between 3 and 21 AND
isnull(rgl.GrdLvlCode, 'AD') != 'AD'
then 'Y'
else 'N'
end, 'N') as TitleIIIEligibleImmigrantFlag,
isnull(
case
when
isnull(rep.EduPgmCode, 000) = 175 OR
isnull(rhel.HighstEduLvlCode, 0) = 14
then 'Y'
else 'N'
end, 'N') as SocioEconomicallyDisadvantagedFlag,
isnull(case
when relass.EngLangAcqstnStatStCode in ('EL', 'RFEP') AND relatp.EngLangArtsTestProfcyCode = 'N' then 'Y'
else 'N'
end, 'N') as LimitedEnglishProficientFlag,
isnull(case rep.EduPgmCode
when '135' then 'Y'
else 'N'
end, 'N') as TitleIPartCMigrantFlag,
isnull(case rep.EduPgmCode
when '144' then 'Y'
else 'N'
end, 'N') as SpecialEducationFlag ,
isnull(case rep.EduPgmCode
when '127' then 'Y'
else 'N'
end, 'N') as GiftedAndTalentedFlag
From
dbo.StuEnrlmt ser
inner join dbo.Stu s on
ser.StuKey = s.StuKey
inner join #TempSchool ts on
ser.EsiIDSchlAtndnc = ts.SchoolESIID and
ser.EsiIDLEARptng = @LEA
inner join RefEductlSrvcInstn resi on
ts.SchoolESIID = resi.ESIID
inner join dbo.RefEnrlmtStat res on
ser.EnrlmtStatKey = res.EnrlmtStatKey
left join dbo.RefStuExitCatg rsec on
ser.StuExitCatgKey = rsec.StuExitCatgKey
left join dbo.StuEngLangArt selar on
ser.StuKey = selar.StuKey and
selar.EfctvStartDate <= @AsOfDate AND (selar.EfctvEndDate is null OR selar.EfctvEndDate >= @AsOfDate)
left join dbo.RefEngLangAcqstnStatSt relass on
selar.EngLangAcqstnStatStKey = relass.EngLangAcqstnStatStKey
left join dbo.RefEngLangArtsTestProfcy relatp on
selar.ElaTestProfcyDsgntnKey = relatp.EngLangArtsTestProfcyKey
inner join dbo.StuDemo sdr on
ser.StuKey = sdr.StuKey
inner join dbo.RefGndr rg on
sdr.GndrCodeKey = rg.GndrCodeKey
left join dbo.StuStat ssr on
ser.StuKey = ssr.StuKey and
ssr.EfctvStartDate <= @AsOfDate AND (ssr.EfctvEndDate is null OR ssr.EfctvEndDate >= @AsOfDate)
inner join dbo.StuGrdLvl sglr on
ser.StuKey = sglr.StuKey
inner join dbo.RefGrdLvl rgl on
sglr.GrdLvlKey = rgl.GrdLvlKey
left join dbo.StuPgm spr on
ser.StuKey = spr.StuKey AND
spr.StuEduPgmMbrshpCatgStartDate <= @AsOfDate AND (spr.StuEduPgmMbrshpCatgEndDate is null OR spr.StuEduPgmMbrshpCatgEndDate >= @AsOfDate)
left join dbo.RefEduPgm rep on
spr.EduPgmCodeKey = rep.EduPgmCodeKey
left join dbo.StuPrntOrGrdn spogr on
ser.StuKey = spogr.StuKey And
spogr.EfctvStartDate <= @AsOfDate AND (spogr.EfctvEndDate is null OR spogr.EfctvEndDate >= @AsOfDate)
left join dbo.RefHighstEduLvl rhel on
spogr.PrntOrGrdnHighstEduLvlCodeKey = rhel.HighstEduLvlKey
left join dbo.vwStuRaceRptng srr on
ser.StuKey = srr.StuKey and
srr.EfctvStartDate <= @AsOfDate AND (srr.EfctvEndDate is null OR srr.EfctvEndDate >= @AsOfDate)
inner join #TempRace tr on
isnull(
case
when sdr.StuHspncEnctyIndctr = 'Y' then 'Hispanic'
when sdr.StuEnctyMsngIndctr = 'Y' or sdr.StuRaceMsngIndctr = 'Y' then 'Missing'
when srr.RaceCatg2Code is not null then 'Multiple'
else srr.FedEnctyRaceCatgCode
end, 'Missing') = tr.Race
inner join #TempGender tg on
rg.GndrCode = tg.GenderCode
inner join #TempGrade tgr on
rgl.GrdLvLCode = tgr.GradeCode
Where
-- Enrollments
ser.StuEsiRltnspExpctdSchlStartDate <= @AsOfDate AND (ser.WithdrlDate is null OR ser.WithdrlDate >= @AsOfDate) AND
res.EnrlmtStatCode = '10' AND
isnull(rsec.StuExitCatgCode, 'N/A') != 'N470' AND -- no shows are not considered in active enrollment numbers
-- Effective date Comparisions. As of date should be between Effective Start and End date (end date can be null)
sdr.EfctvStartDate <= @AsOfDate AND (sdr.EfctvEndDate is null OR sdr.EfctvEndDate >= @AsOfDate) AND
sglr.EfctvStartDate <= @AsOfDate AND (sglr.EfctvEndDate is null OR sglr.EfctvEndDate >= @AsOfDate) AND
-- Filter deleted records out
(spr.DeleteFlag is null OR spr.DeleteFlag = 'N') AND
(spogr.DeleteFlag is null OR spogr.DeleteFlag = 'N') AND
(sglr.DeleteFlag is null OR sglr.DeleteFlag = 'N') AND
(selar.DeleteFlag is null OR selar.DeleteFlag = 'N') AND
(sdr.DeleetFlag is null OR sdr.DeleetFlag = 'N') AND
(ser.DeleteFlag is null OR ser.DeleteFlag = 'N')
Drop table #TempSchool
Drop table #TempRace
Drop table #TempGender
Drop table #TempGrade
感谢您的帮助。仅供参考，tfnParseStringIntoTable 函数根据逗号分隔的值列表返回一个表。
【问题讨论】：
-
您需要向我们展示产生此计划的查询。
-
@durilai：只是强调需要生成执行计划所针对的查询。
标签： sql-server-2005 performance sql-execution-plan