SQL Server具有vs Join - 性能问题

Question

我有两个几乎相同的查询。一个会在几分钟内执行，另一个会超时或超过20分钟。研究但没有在网上找到内部联接与拥有之间的比较（仅查找Where vs Inner Join，或Where Where Having）。我想理解为什么一个比另一个快得多。第一个查询是正常的查询，第二个查询是无效的查询：

SELECT IW.OrderCategory
    , IW.ParkName
    , IW.TurbineNumber
    , IW.UserStatus
    , IW.MaintenancePlan
    , Chk_List.Checklist_Description
    , Chk_List.DateTimeStamp
    , Chk_List.Stamp
    , Chk_List.Man
    , Chk_List.type
    , Chk_List.Joint
    , Chk_List.ToolPos
    , Chk_List.Tech
FROM   ServiceWorkOrders.EDW.SAP_ServiceOrders_IW73 AS IW
      INNER JOIN dbo.vwSQL_Checklist_data_w_item_details AS Chk_List ON IW.TurbineNumber = Chk_List.Turbine_Num
GROUP BY IW.OrderCategory
      , IW.ParkName
      , IW.TurbineNumber
      , IW.UserStatus
      , IW.MaintenancePlan
      , Chk_List.Checklist_Description
      , Chk_List.DateTimeStamp
      , Chk_List.Stamp
      , Chk_List.Man
      , Chk_List.type
      , Chk_List.Joint
      , Chk_List.ToolPos
      , Chk_List.Tech
HAVING(IW.ActualStartDate = MAX(Chk_List.DateStamp));

SELECT IW.OrderCategory
    , IW.ParkName
    , IW.TurbineNumber
    , IW.UserStatus
    , IW.MaintenancePlan
    , Chk_List.Checklist_Description
    , Chk_List.DateTimeStamp
    , Chk_List.Stamp
    , Chk_List.Man
    , Chk_List.type
    , Chk_List.Joint
    , Chk_List.ToolPos
    , Chk_List.Tech
FROM   ServiceWorkOrders.EDW.SAP_ServiceOrders_IW73 AS IW
      INNER JOIN dbo.vwSQL_Checklist_data_w_item_details AS Chk_List ON IW.TurbineNumber = Chk_List.Turbine_Num
                                                           AND IW.ActualStartDate = Chk_List.DateStamp
GROUP BY IW.OrderCategory
      , IW.ParkName
      , IW.TurbineNumber
      , IW.UserStatus
      , IW.MaintenancePlan
      , Chk_List.Checklist_Description
      , Chk_List.DateTimeStamp
      , Chk_List.Stamp
      , Chk_List.Man
      , Chk_List.type
      , Chk_List.Joint
      , Chk_List.ToolPos
      , Chk_List.Tech;