我有以下sql查询，当我运行没有 where子句时使用case statements时，它在1秒内运行完美，但是当我运行这个时它花了太长时间使用where clause
case statements
所以问题是如何优化这个where clause以便它完美运行。
declare @JailCode int =141
declare @PrisonerType nvarchar(4)='All'
declare @Location nvarchar(4)='All'
declare @DATE1 smalldatetime='01/01/2009'
declare @DATE2 smalldatetime='12/31/2009'
declare @Caste nvarchar(10)='All'
declare @Religion nvarchar(10) ='All'
declare @Occupation int=0
declare @Qualification int=0
declare @Tendency nvarchar(10)='All'
declare @Risk nvarchar(10)='All'
declare @Annual nvarchar(10)='All'
declare @Marital nvarchar(10)='All'
declare @Sex nvarchar(10)='All'
declare @Nationality int=0
declare @Offence int=0
SELECT PT.P_Name as Prisoner_Type,
PE.PID_No,PE.Jail_Code,PE.Entry_Year,Convert(varchar(10),PE.Admission_Date,103) Admission_Date,PE.JID_No,Convert(varchar(10),PE.Release_Date,103) Release_Date ,
PM.Prisoner_Name, SUBSTRING(PM.Father_Name, 0, 17)as Father_Name, PM.Mother_Name,PM.Spouse_Name,PM.Caste_Code,
PM.Religion_Code,PM.Occupation_Code,PM.Qualification,PM.Tendency_Type,PM.Risk_Type,PM.Annual_Income_Code,PM.Marital_Status_Code,PM.Id_Mark,
PM.Sex_Code,PM.Nationality_Code,PM.Off_Code,PM.Present_Add, Age as age ,PM.Permt_Add, LS.Location AS Location
,NT.Nation_Name , JT.Jail_Address
--,PrisonerPicture.Photo
,OT.Offence_Name,QT.Qualification as quali ,IT.Annual_Income_Range,CT.Caste_Name
,RT.Religion_Name,MT.Marital_Status_Name,OFT.Occ_Name AS Occupation
, STUFF(( SELECT ', ' + cc.Act_Sec AS [text()]
FROM CourtCases cc
WHERE
cc.PID_NO = PE.PID_NO and (',' + Replace(pe.Case_No,'$',',') +',' LIKE '%,' + CONVERT(VARCHAR, cc.Case_No) + ',%') group by cc.Act_Sec
FOR XML PATH('') ), 1, 1, '' )
AS [Act_Sec]
, STUFF(( SELECT ', ' + Convert(varchar(10),CC.Fir_Date,103) AS [text()]
FROM CourtCases cc
WHERE
cc.PID_NO = PE.PID_NO and (',' + Replace(pe.Case_No,'$',',') +',' LIKE '%,' + CONVERT(VARCHAR, cc.Case_No) + ',%') group by Convert(varchar(10),CC.Fir_Date,103)
FOR XML PATH('') ), 1, 1, '' )
AS [Fir_Date]
,STUFF(( SELECT ', ' + FIR_No AS [text()]
FROM CourtCases cc
WHERE
cc.PID_NO = PE.PID_NO and (',' + Replace(pe.Case_No,'$',',') +',' LIKE '%,' + CONVERT(VARCHAR, cc.Case_No) + ',%') group by FIR_No
FOR XML PATH('') ), 1, 1, '' )
AS [FIR_No]
, STUFF(( SELECT ', ' + ct.Court_Name AS [text()]
FROM CourtCases cc inner join Court_Tab as ct
ON cc.Court_Code=convert(nvarchar(50),ct.Court_Code)
WHERE
cc.PID_NO = PE.PID_NO and (',' + Replace(pe.Case_No,'$',',') +',' LIKE '%,' + CONVERT(VARCHAR, cc.Case_No) + ',%') group by ct.Court_Name
FOR XML PATH('') ), 1, 1, '' )
AS [Court_Name]
, STUFF(( SELECT ', ' + pt.PS_Name AS [text()]
FROM CourtCases cc inner join PS_Tab as pt
ON convert(nvarchar(50),cc.PS_Code)=convert(nvarchar(50),pt.PS_Code)
WHERE
cc.PID_NO = PE.PID_NO and (',' + Replace(pe.Case_No,'$',',') +',' LIKE '%,' + CONVERT(VARCHAR, cc.Case_No) + ',%') group by pt.PS_Name
FOR XML PATH('') ), 1, 1, '' )
AS [PS_Name]
FROM PrisonMaster AS PM
INNER JOIN PrisonerEntry AS PE ON PE.PID_No = PM.PID_No AND PE.Jail_Code=@JailCode
INNER JOIN Nation_Tab AS NT ON PM.Nationality_Code = NT.Nation_Code
INNER JOIN Sex_Tab AS S ON PM.Sex_Code = S.Sex_Code
INNER JOIN Jail_Tab AS JT ON PE.Jail_Code = JT.Jail_Code
INNER JOIN Prisoner_Tab AS PT ON PE.Prisoner_Type=PT.P_Type
INNER JOIN Loc_Status AS LS ON PE.Location=LS.Loc_Status
left JOIN Offence_Tab AS OT ON OT.Offence_Code=PM.Occupation_Code
left JOIN Qualification_Tab AS QT ON QT.Q_Code=PM.Qualification
left JOIN Income_Tab AS IT ON IT.Annual_Income_Code=PM.Annual_Income_Code
left JOIN Caste_Tab AS CT ON CT.Caste_Code=PM.Caste_Code
LEFT JOIN Religion_Tab AS RT ON RT.Religion_Code=PM.Religion_Code
LEFT JOIN Marital_Tab AS MT ON MT.Marital_Status_Code=PM.Marital_Status_Code
LEFT JOIN Occupation_Tab AS OFT ON OFT.Occ_Code=PM.Occupation_Code
WHERE
PE.Admission_Date BETWEEN @DATE1 AND @DATE2
AND isnull(PE.Prisoner_Type,0) =CASE WHEN @PrisonerType!='All' THEN @PrisonerType WHEN @PrisonerType ='All' THEN isnull(PE.Prisoner_Type,0) END
AND isnull(PE.Location,0)=CASE WHEN @Location!='All' THEN @Location WHEN @Location ='All' THEN isnull(PE.Location,0) END
AND isnull(PM.Caste_Code,0)=CASE WHEN @Caste!='All' THEN @Caste WHEN @Caste ='All' THEN isnull(PM.Caste_Code,0) END
AND isnull(PM.Religion_Code,0)=CASE WHEN @Religion!='All' THEN @Religion WHEN @Religion ='All' THEN isnull(PM.Religion_Code,0) END
AND isnull(PM.Occupation_Code,0)=CASE WHEN @Occupation!=0 THEN @Occupation WHEN @Occupation =0 THEN isnull(PM.Occupation_Code,0) END
AND isnull(PM.Qualification,0)=CASE WHEN @Qualification!=0 THEN @Qualification WHEN @Qualification =0 THEN isnull(PM.Qualification,0) END
AND isnull(PM.Tendency_Type,0)=CASE WHEN @Tendency!='All' THEN @Tendency WHEN @Tendency ='All' THEN isnull(PM.Tendency_Type,0) END
AND isnull(PM.Risk_Type,0)=CASE WHEN @Risk!='All' THEN @Risk WHEN @Risk ='All' THEN isnull(PM.Risk_Type,0) END
AND isnull(PM.Annual_Income_Code,0)=CASE WHEN @Annual!='All' THEN @Annual WHEN @Annual ='All' THEN isnull(PM.Annual_Income_Code,0) END
AND isnull(PM.Marital_Status_Code,0)=CASE WHEN @Marital!='All' THEN @Marital WHEN @Marital ='All' THEN isnull(PM.Marital_Status_Code,0) END
AND isnull(PM.Sex_Code,0)=CASE WHEN @Sex!='All' THEN @Sex WHEN @Sex ='All' THEN isnull(PM.Sex_Code,0) END
AND isnull(PM.Nationality_Code,0)=CASE WHEN @Nationality!=0 THEN @Nationality WHEN @Nationality =0 THEN isnull(PM.Nationality_Code,0) END
AND isnull(PM.Off_Code,0)=CASE WHEN @Offence!=0 THEN @Offence WHEN @Offence =0 THEN isnull(PM.Off_Code,0) END
ORDER BY PE.PID_No
我刚从动态sql的同事那里得到了一个解决方案，但我不想使用那个。我不喜欢将查询写为字符串，然后执行它..如果我必须这样做，那么为什么我使用存储过程？并且只有动态sql是我可以使用的选项或其他任何东西都可以完成。