使用 #temp Table 优化 SQL 服务器查询并按条件分组

Question

我有以下查询，它按预期工作但需要很长时间才能执行。

为了获得结果，我在临时 table 中获取了记录，然后应用 groupby 获得最终结果

SELECT * 
INTO #temp From (

  select A.*,B.* 
  from (
    select e.Id,e.code,e.Fname,
      (select ComboValue from dbo.comvals where Id = c.BUDHOL) as [BUDHOL],
      (select ComboValue from dbo.comvals where Id = c.COMPANY) as [COMPANY],
      (select ComboValue from dbo.comvals where Id = c.BENEFICIARY) as [BENEFICIARY],
      (select ComboValue from dbo.comvals where Id = c.SPARE2) as [SPARE2],
      (select ComboValue from dbo.comvals where Id = c.SPARE1) as [SPARE1],
      (select ComboValue from dbo.comvals where Id = c.EXPORG) as [EXPORG],
      (select ComboValue from dbo.comvals where Id = c.EXPTYPE) as [EXPTYPE],
      (select ComboValue from dbo.comvals where Id = c.OBJECTIVE) as [OBJECTIVE],
      (select ComboValue from dbo.comvals where Id = c.TASKNO) as [TASKNO],
      (select ComboValue from dbo.comvals where Id = c.PROJECTNO) as [PROJECTNO]
    from dbo.EmployeeDetail e  
    left join (
      select * 
      from (
        select CustomeFieldName,FieldValue,CompanyId,EmployeeId   
        from  dbo.CustomeFieldDetail   
        where CustomeFieldName in ('BENEFICIARY','BUDHOL','COMPANY', 'EXPORG','EXPTYPE','OBJECTIVE','PROJECTNO','SPARE2','SPARE1','TASKNO','COMPANY') and CompanyId = 1 
      )as src  
      pivot (max(FieldValue) for CustomeFieldName in ([BENEFICIARY],[BUDHOL],[EXPORG],[EXPTYPE],[OBJECTIVE],[PROJECTNO],[SPARE2],[SPARE1],[TASKNO],[COMPANY])
            ) as src2
    ) c on e.Id = c.EmployeeId   and e.CompanyId = c.CompanyId and e.DateOfJoining <= convert(datetime,'30/03/2016',103) and e.CompanyId = 1       
    where e.Companyid=1 --order by e.Code
  ) A
  Full Outer join (
    select
      T.EmployeeId,
      X.[FieldName],
      X.[Value]
    from dbo.EmpTransaction T
    cross apply (
      SELECT         
        T.c.value('(@Name)[1]', 'Varchar(max)') AS [FieldName],
        convert(float,T.c.value('(@Value)[1]', 'Varchar(max)')) AS [Value]
      FROM TransactionFieldDetails.nodes('//PayDetails/Column') T(c)
      where CompanyId = 1 and  ProcessDate = convert(datetime,'01/03/2016',103) and CategoryId in (1) 
            and T.c.value('(@Name)[1]', 'Varchar(max)') in('FB')
    ) X
  ) B
  ON A.id= B.EmployeeId
) As x

Final GroupBy Condition on Temp Table

SELECT B.BENEFICIARY,
       B.BUDHOL,
       B.COMPANY,
       B.FIELDNAME,
       B.OBJECTIVE,
       B.SPARE1,
       B.SPARE2,
       B.PROJECTNO,
       B.TASKNO,
       B.EXPORG,
       B.EXPTYPE,
       SUM(B.value)
FROM (
    SELECT DISTINCT A.BENEFICIARY,
                    A.BUDHOL,
                    A.COMPANY,
                    A.FIELDNAME,
                    A.OBJECTIVE,
                    A.value,
                    A.SPARE2,
                    A.SPARE1,
                    A.PROJECTNO,
                    A.TASKNO,
                    A.EXPORG,
                    A.EXPTYPE
    FROM (
        SELECT t.BENEFICIARY,
               t.BUDHOL,
               t.COMPANY,
               t.FIELDNAME,
               t.OBJECTIVE,
               t.SPARE1,
               t.SPARE2,
               t.PROJECTNO,
               t.TASKNO,
               t.EXPORG,
               t.EXPTYPE,
               t.value value
        FROM #temp T, #temp TT
    ) A
    LEFT JOIN #temp T1 ON A.BENEFICIARY = t1.BENEFICIARY
        AND A.BUDHOL = t1.BUDHOL
        AND A.COMPANY = t1.COMPANY
        AND A.OBJECTIVE = t1.OBJECTIVE
        AND A.SPARE1 = t1.SPARE1
        AND A.SPARE2 = t1.SPARE2
        AND A.PROJECTNO = t1.PROJECTNO
        AND A.TASKNO = t1.TASKNO
        AND A.EXPORG = t1.EXPORG
        AND A.EXPTYPE = t1.EXPTYPE
) B
GROUP BY B.BENEFICIARY,
         B.BUDHOL,
         B.COMPANY,
         B.OBJECTIVE,
         B.FIELDNAME,
         B.SPARE1,
         B.SPARE2,
         B.PROJECTNO,
         B.TASKNO,
         B.EXPORG,
         B.EXPTYPE

Above Query is working fine and as expected. need to know whether above query can be optimized so that i can take less time to execute currently it take more than 2 min to execute, also can we combine both queries i.e. i dont want to use #temp table

Answer 1

IF OBJECT_ID('tempdb.dbo.#temp') IS NOT NULL
    DROP TABLE #temp

SELECT A.*, B.*
INTO #temp
FROM (
    SELECT
        e.Id,
        e.code,
        e.Fname,
        c.[BUDHOL],
        c.[COMPANY],
        c.[BENEFICIARY],
        c.[SPARE2],
        c.[SPARE1],
        c.[EXPORG],
        c.[EXPTYPE],
        c.[OBJECTIVE],
        c.[TASKNO],
        c.[PROJECTNO]
    FROM dbo.EmployeeDetail e  
    LEFT JOIN (
        SELECT *
        FROM (
            SELECT
                  d.CustomeFieldName
                , c.ComboValue
                , d.EmployeeId
            FROM dbo.CustomeFieldDetail d
            LEFT JOIN dbo.comvals c ON c.Id = d.FieldValue
            WHERE d.CustomeFieldName IN (
                    'BENEFICIARY', 'BUDHOL', 'COMPANY',
                    'EXPORG', 'EXPTYPE', 'OBJECTIVE',
                    'PROJECTNO', 'SPARE2', 'SPARE1',
                    'TASKNO', 'COMPANY'
                )
                AND d.CompanyId = 1
        ) src 
        PIVOT (
            MAX(ComboValue)
            FOR CustomeFieldName IN (
                [BENEFICIARY],[BUDHOL],[EXPORG],
                [EXPTYPE],[OBJECTIVE],[PROJECTNO],
                [SPARE2],[SPARE1],
                [TASKNO],[COMPANY]
           )
        ) src2
    ) c ON e.Id = c.EmployeeId
        AND e.DateOfJoining <= '20160330'
    WHERE e.Companyid = 1
) A
FULL JOIN (
    SELECT t.EmployeeId,
           x.[FieldName],
           x.[Value]
    FROM dbo.EmpTransaction t
    CROSS APPLY (
        SELECT t.c.value('(@Name)[1]', 'VARCHAR(1000)') AS [FieldName],
               t.c.value('(@Value)[1]', 'FLOAT') AS [Value]
        FROM TransactionFieldDetails.nodes('//PayDetails/Column') t(c)
    ) x
    WHERE [FieldName] = 'FB'
        AND CompanyId = 1
        AND ProcessDate = '20160301'
        AND CategoryId = 1
) B ON A.id = B.EmployeeId

SELECT B.BENEFICIARY,
       B.BUDHOL,
       B.COMPANY,
       B.FIELDNAME,
       B.OBJECTIVE,
       B.SPARE1,
       B.SPARE2,
       B.PROJECTNO,
       B.TASKNO,
       B.EXPORG,
       B.EXPTYPE,
       SUM(B.value)
FROM (
    SELECT DISTINCT A.BENEFICIARY,
                    A.BUDHOL,
                    A.COMPANY,
                    A.FIELDNAME,
                    A.OBJECTIVE,
                    A.value,
                    A.SPARE2,
                    A.SPARE1,
                    A.PROJECTNO,
                    A.TASKNO,
                    A.EXPORG,
                    A.EXPTYPE
    FROM #temp A
    LEFT JOIN #temp T1 ON A.BENEFICIARY = t1.BENEFICIARY
        AND A.BUDHOL = t1.BUDHOL
        AND A.COMPANY = t1.COMPANY
        AND A.OBJECTIVE = t1.OBJECTIVE
        AND A.SPARE1 = t1.SPARE1
        AND A.SPARE2 = t1.SPARE2
        AND A.PROJECTNO = t1.PROJECTNO
        AND A.TASKNO = t1.TASKNO
        AND A.EXPORG = t1.EXPORG
        AND A.EXPTYPE = t1.EXPTYPE
) B
GROUP BY B.BENEFICIARY,
         B.BUDHOL,
         B.COMPANY,
         B.OBJECTIVE,
         B.FIELDNAME,
         B.SPARE1,
         B.SPARE2,
         B.PROJECTNO,
         B.TASKNO,
         B.EXPORG,
         B.EXPTYPE

Answer 2

合并成 1 个查询

WITH temp AS (

select A.*,B.* from 
(select e.Id,e.code,e.Fname,
(select ComboValue from dbo.comvals where Id = c.BUDHOL) as [BUDHOL],
(select ComboValue from dbo.comvals where Id = c.COMPANY) as [COMPANY],
(select ComboValue from dbo.comvals where Id = c.BENEFICIARY) as [BENEFICIARY],
(select ComboValue from dbo.comvals where Id = c.SPARE2) as [SPARE2],
(select ComboValue from dbo.comvals where Id = c.SPARE1) as [SPARE1],
(select ComboValue from dbo.comvals where Id = c.EXPORG) as [EXPORG],
(select ComboValue from dbo.comvals where Id = c.EXPTYPE) as [EXPTYPE],
(select ComboValue from dbo.comvals where Id = c.OBJECTIVE) as [OBJECTIVE],
(select ComboValue from dbo.comvals where Id = c.TASKNO) as [TASKNO],
(select ComboValue from dbo.comvals where Id = c.PROJECTNO) as [PROJECTNO]
from dbo.EmployeeDetail e  
left join   (select * from   (select CustomeFieldName,FieldValue,CompanyId,EmployeeId   from  dbo.CustomeFieldDetail   where CustomeFieldName in ('BENEFICIARY','BUDHOL','COMPANY', 'EXPORG','EXPTYPE','OBJECTIVE','PROJECTNO','SPARE2','SPARE1','TASKNO','COMPANY') and CompanyId = 1 )as src  pivot (max(FieldValue) for CustomeFieldName in ([BENEFICIARY],[BUDHOL],[EXPORG],[EXPTYPE],[OBJECTIVE],[PROJECTNO],[SPARE2],[SPARE1],[TASKNO],[COMPANY])) as src2) c on e.Id = c.EmployeeId   and e.CompanyId = c.CompanyId and e.DateOfJoining <= convert(datetime,'30/03/2016',103) and e.CompanyId = 1       where e.Companyid=1 --order by e.Code
)A
Full Outer join 
(select
    T.EmployeeId,
    X.[FieldName],
    X.[Value]
from dbo.EmpTransaction T
cross apply (
SELECT         
T.c.value('(@Name)[1]', 'Varchar(max)') AS [FieldName],
convert(float,T.c.value('(@Value)[1]', 'Varchar(max)')) AS [Value]
FROM TransactionFieldDetails.nodes('//PayDetails/Column') T(c)
where CompanyId = 1 and  ProcessDate = convert(datetime,'01/03/2016',103) and CategoryId in (1) 
and T.c.value('(@Name)[1]', 'Varchar(max)') in('FB')
) X )B
ON A.id= B.EmployeeId

 )
 SELECT B.BENEFICIARY,
       B.BUDHOL,
       B.COMPANY,
       B.FIELDNAME,
       B.OBJECTIVE,
       B.SPARE1,
       B.SPARE2,
       B.PROJECTNO,
       B.TASKNO,
       B.EXPORG,
       B.EXPTYPE,
       SUM(B.value)
FROM (
    SELECT DISTINCT A.BENEFICIARY,
                    A.BUDHOL,
                    A.COMPANY,
                    A.FIELDNAME,
                    A.OBJECTIVE,
                    A.value,
                    A.SPARE2,
                    A.SPARE1,
                    A.PROJECTNO,
                    A.TASKNO,
                    A.EXPORG,
                    A.EXPTYPE
    FROM (
        SELECT t.BENEFICIARY,
               t.BUDHOL,
               t.COMPANY,
               t.FIELDNAME,
               t.OBJECTIVE,
               t.SPARE1,
               t.SPARE2,
               t.PROJECTNO,
               t.TASKNO,
               t.EXPORG,
               t.EXPTYPE,
               t.value value
        FROM temp T, temp TT
    ) A
    LEFT JOIN #temp T1 ON A.BENEFICIARY = t1.BENEFICIARY
        AND A.BUDHOL = t1.BUDHOL
        AND A.COMPANY = t1.COMPANY
        AND A.OBJECTIVE = t1.OBJECTIVE
        AND A.SPARE1 = t1.SPARE1
        AND A.SPARE2 = t1.SPARE2
        AND A.PROJECTNO = t1.PROJECTNO
        AND A.TASKNO = t1.TASKNO
        AND A.EXPORG = t1.EXPORG
        AND A.EXPTYPE = t1.EXPTYPE
) B
GROUP BY B.BENEFICIARY,
         B.BUDHOL,
         B.COMPANY,
         B.OBJECTIVE,
         B.FIELDNAME,
         B.SPARE1,
         B.SPARE2,
         B.PROJECTNO,
         B.TASKNO,
         B.EXPORG,
         B.EXPTYPE

使用 #temp Table 优化 SQL 服务器查询并按条件分组

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