排序＆amp;并行性花费了我的查询太多时间

Question

我的SQL查询需要花费大量时间才能运行。我写了一个类似的查询并将它们相互对立，当使用一个小数据集（10K行）时，这个查询运行得更快，但当使用LARGE数据集（500K +行）时，比另一个慢约20-30倍。然而，我的第一个查询没有我需要的一个列，并且我不能添加它而不用这种不同的方法。

SELECT a.[RFIDTAGID], a.[JOB_NUMBER], d.[PROJECT_NUMBER], a.[PART_NUMBER], a.[QUANTITY], b.[DESIGNATION] as LOCATION, 
c.[DESIGNATION] as CONTAINER, a.[LAST_SEEN_TIME], b.[TYPE], b.[BLDG], d.[PBG], d.[PLANNED_MFG_DELIVERY_DATE], d.[EXTENSION_DATE], a.[ORG_ID]
FROM [LTS].[dbo].[LTS_PACKAGE] as a

LEFT OUTER JOIN (
    SELECT [DESIGNATION], [CONTAINER_ID], [LOCATION_ID]
    FROM [LTS].[dbo].[LTS_CONTAINER]
    ) c ON a.[CONTAINER_ID] = c.[CONTAINER_ID]

LEFT OUTER JOIN (
    SELECT [DESIGNATION], [TYPE], [BLDG], [LOCATION_ID]
    FROM [LTS].[dbo].[LTS_LOCATION]
    ) b ON a.[LAST_SEEN_LOC_ID] = b.[LOCATION_ID] OR b.[LOCATION_ID] = c.[LOCATION_ID]

INNER JOIN (
    SELECT [PBG], [PLANNED_MFG_DELIVERY_DATE], [EXTENSION_DATE], [DISCRETE_JOB_NUMBER], [PROJECT_NUMBER]
    FROM [LTS].[dbo].[LTS_DISCRETE_JOB_SUMMARY]
)d ON a.[JOB_NUMBER] = d.[DISCRETE_JOB_NUMBER]

WHERE
d.[PLANNED_MFG_DELIVERY_DATE] <= GETDATE()
AND b.[TYPE] NOT IN('MFG', 'Manufacturing')
AND (b.[DESIGNATION] IS NOT NULL OR c.[DESIGNATION] IS NOT NULL)

ORDER BY [JOB_NUMBER], d.[PLANNED_MFG_DELIVERY_DATE] desc,  [RFIDTAGID];

您可以在下面看到使用情况，100％大约是20,000，而我的其他查询大约是900：

我能做些什么来加快我的查询速度，或者我把它搞砸了？

Answer 1

删除内部选择并直接连接到表：

  SELECT a.[RFIDTAGID], a.[JOB_NUMBER], d.[PROJECT_NUMBER], a.[PART_NUMBER], a.[QUANTITY], b.[DESIGNATION] as LOCATION, 
    c.[DESIGNATION] as CONTAINER, a.[LAST_SEEN_TIME], b.[TYPE], b.[BLDG], d.[PBG], d.[PLANNED_MFG_DELIVERY_DATE], d.[EXTENSION_DATE], a.[ORG_ID]
    FROM [LTS].[dbo].[LTS_PACKAGE] a

    LEFT OUTER JOIN  [LTS].[dbo].[LTS_CONTAINER]
       c ON a.[CONTAINER_ID] = c.[CONTAINER_ID]

    LEFT OUTER JOIN [dbo].[LTS_LOCATION]
          b ON a.[LAST_SEEN_LOC_ID] = b.[LOCATION_ID] OR b.[LOCATION_ID] = c.[LOCATION_ID]

    INNER JOIN  
     [LTS].[dbo].[LTS_DISCRETE_JOB_SUMMARY]
     d ON a.[JOB_NUMBER] = d.[DISCRETE_JOB_NUMBER]

    WHERE
    d.[PLANNED_MFG_DELIVERY_DATE] <= GETDATE()
    AND b.[TYPE] NOT IN('MFG', 'Manufacturing')
    AND (b.[DESIGNATION] IS NOT NULL OR c.[DESIGNATION] IS NOT NULL)

    ORDER BY [JOB_NUMBER], d.[PLANNED_MFG_DELIVERY_DATE] desc,  [RFIDTAGID];