调整具有多个联接的查询

我有这个查询.. 214执行/分钟，平均44.42 CPU（ms）有没有办法使它更快

SELECT        P.Id id0,
              P.ProgramId ProgramId1,
              P.ProgramName ProgramName2,
              P.ProgramLevel ProgramLevel3,
              P.Department Department4,
              P.Track Track5,
              P.AcademicYear AcademicYear6,
              P.StartTerm StartTerm7,
              P.Delivery Delivery8,
              P.Fee Fee9,
              P.City City10,
              P.STATE State11,
              P.StartDate StartDate12,
              P.Deadline Deadline13,
              P.DeadlineDisplay DeadlineDisplay14,
              P.ProgramType ProgramType15,
              O.Id as OrganizationId16,
              O.NAME OrganizationName17,
              P.ApplicationType ApplicationType18,
              P.Concentration Concentration19,
              P.ZipCode ZipCode20,
              P.Campus Campus21,
              P.WADisplayName WADisplayName22,
              P.UpdatedDate updateDate23,
              AF.Id InstanceId24,
              RD.Id stateId33
INTO #TempGetFullProgramSelectionInfo            
FROM    unicas_config..applicationForm AF  
  INNER JOIN UNICAS_CONFIG.. AcademicInstitution AI
           ON AF.casid=AI.casid 
  INNER JOIN UNICAS_CONFIG..Organization O 
           ON O.academicInstitutionid=AI.id   
  INNER JOIN UNICAS_CONFIG..AssociationOrg asOrg
           ON asOrg.FormId=AF.id
  INNER JOIN  UNICAS_CONFIG..Program P
           ON P.AssociationOrgId=asOrg.Id and asOrg.OrganizationId=O.id AND AF.Id = 6286
  INNER JOIN  unicas_config..ReferenceData RD 
                 ON P.STATE = RD.ValueId AND RD.ValueAbbr ='US'
  INNER JOIN  unicas_config..ReferenceDataSet RS  
           ON RD.ReferenceSetId = RS.SetId AND RS.NAME = 'LK_States'

现在这如果我拆分为2个查询

select RD.ValueId, RD.id into #temp1
from   unicas_config..ReferenceData RD
INNER JOIN  unicas_config..ReferenceDataSet RS   ON RD.ReferenceSetId= RS.SetId AND RS.NAME= 'LK_States'
where RD.ValueAbbr='US';


SELECT        P.Id id0,
              P.ProgramId ProgramId1,
              P.ProgramName ProgramName2,
              P.ProgramLevel ProgramLevel3,
              P.Department Department4,
              P.Track Track5,
              P.AcademicYear AcademicYear6,
              P.StartTerm StartTerm7,
              P.Delivery Delivery8,
              P.Fee Fee9,
              P.City City10,
              P.STATE State11,
              P.StartDate StartDate12,
              P.Deadline Deadline13,
              P.DeadlineDisplay DeadlineDisplay14,
              P.ProgramType ProgramType15,
              O.Id as OrganizationId16,
              O.NAME OrganizationName17,
              P.ApplicationType ApplicationType18,
              P.Concentration Concentration19,
              P.ZipCode ZipCode20,
              P.Campus Campus21,
              P.WADisplayName WADisplayName22,
              P.UpdatedDate updateDate23,
              AF.Id InstanceId24,
              RD.Id stateId33
INTO #TempGetFullProgramSelectionInfo            
FROM    unicas_config..applicationForm AF  
  INNER JOIN UNICAS_CONFIG.. AcademicInstitution AI
           ON AF.casid=AI.casid 
  INNER JOIN UNICAS_CONFIG..Organization O 
           ON O.academicInstitutionid=AI.id   
  INNER JOIN UNICAS_CONFIG..AssociationOrg asOrg
           ON asOrg.FormId=AF.id
  INNER JOIN  UNICAS_CONFIG..Program P
           ON P.AssociationOrgId=asOrg.Id and asOrg.OrganizationId=O.id AND AF.Id = 6286
  INNER JOIN    #temp1 RD ON P.STATE= RD.ValueId;

使用飞盘推荐的查询

使用哈希联接

尝试一下
您有一些（可能）错位的加入条件

SELECT        P.Id id0,
              P.ProgramId ProgramId1,
              P.ProgramName ProgramName2,
              P.ProgramLevel ProgramLevel3,
              P.Department Department4,
              P.Track Track5,
              P.AcademicYear AcademicYear6,
              P.StartTerm StartTerm7,
              P.Delivery Delivery8,
              P.Fee Fee9,
              P.City City10,
              P.STATE State11,
              P.StartDate StartDate12,
              P.Deadline Deadline13,
              P.DeadlineDisplay DeadlineDisplay14,
              P.ProgramType ProgramType15,
              O.Id as OrganizationId16,
              O.NAME OrganizationName17,
              P.ApplicationType ApplicationType18,
              P.Concentration Concentration19,
              P.ZipCode ZipCode20,
              P.Campus Campus21,
              P.WADisplayName WADisplayName22,
              P.UpdatedDate updateDate23,
              AF.Id InstanceId24,
              RD.Id stateId33
INTO #TempGetFullProgramSelectionInfo            
FROM       UNICAS_CONFIG..Organization O                 
INNER JOIN UNICAS_CONFIG..AcademicInstitution AI
            ON AI.id = O.academicInstitutionid        
INNER JOIN unicas_config..applicationForm AF
            ON AF.casid = AI.casid  
           AND AF.Id = 6286   
INNER JOIN UNICAS_CONFIG..AssociationOrg asOrg
            ON asOrg.FormId         = AF.id
           and asOrg.OrganizationId = O.id
INNER JOIN UNICAS_CONFIG..Program P
            ON P.AssociationOrgId = asOrg.Id 
INNER JOIN unicas_config..ReferenceData RD 
            ON RD.ValueId = P.STATE  
           AND RD.ValueAbbr ='US'
INNER JOIN unicas_config..ReferenceDataSet RS  
            ON RS.SetId = RD.ReferenceSetId   
           AND RS.NAME = 'LK_States'

如果#temp有索引，则对最有意义的索引进行排序

如果那不能改善响应，则只对所有对象强制执行哈希联接
仍在我的答案中使用select-将HASH添加到上面的查询中

INNER HASH JOIN

尝试创建以下索引（假设它不存在）

CREATE INDEX ix_Organization_academicInstitutionid
    ON Organization(academicInstitutionid, Id) INCLUDE (Name)

在对脚本进行任何更改之前，只需对所有涉及的表进行索引重建，看看是否有任何明显的增加。（至少，要使用完全扫描重建表级统计信息）

[程序]似乎是一个大表，请确保对P.AssociationOrgId进行了索引。