我们有从Microsoft Dynamics AX加载的数据仓库和多维数据集 问题是由标量函数引起的：
CREATE FUNCTION [dbo].[fn_SplitActivityByLevel]
(
-- Add the parameters for the function here
@Activity varchar(20),
@Level tinyint,
@SplitBy char(1)
)
RETURNS varchar(20)
AS
BEGIN
DECLARE @start int,
@count int,
@value varchar(20),
@valueStart int,
@returnValue varchar(20),
@ActivityLength int;
--SET @Activity = '100.7.3.4';
--SET @Level = 1;
SET @start = 1;
SET @count = 0;
SET @valueStart = 1;
SET @ActivityLength = 1;
-- Make sure level is a positive number
if @Level > 0
BEGIN
WHILE @start < LEN(@Activity) + 1
BEGIN
SET @value = SUBSTRING(@Activity, @start, 1)
if @value = @SplitBy
BEGIN
SET @count = @count + 1;
SET @returnValue = SUBSTRING(@Activity, @valueStart, @ActivityLength - 1)
SET @valueStart = @start + 1
SET @ActivityLength = 0;
END
if @count = @Level
break;
SET @start = @start + 1;
SET @ActivityLength = @ActivityLength + 1;
END
END
-- Check to see if the level requested is greater then the number of levels available.
if @count < @level
SET @returnValue = null;
-- Check for the last level.
if @count + 1 = @level
SET @returnValue = SUBSTRING(@Activity, @valueStart, @ActivityLength - 1)
--print '@returnValue = ' + CAST(@returnValue as varchar);
return @returnValue
END
调用函数：
SELECT
SMMACTIVITIES.[PARTITION] AS [PARTITION]
,SMMACTIVITIES.DATAAREAID AS [DATAAREAID]
,SMMACTIVITIES.ACTIVITYNUMBER AS ActivityNumber
,SMMACTIVITIES.PMIPACTIVITYCODE AS PMIPActivityCode
,SMMACTIVITIES.PURPOSE AS ActivityPurpose
,SMMACTIVITYCATEGORY_ENUM.ENUMITEMName AS ActivityCategoryName
,ProjTable.ProjID AS ProjectID --Outrigger - dimension tables joined to other dimension tables
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 1 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level1.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level1_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 1 THEN HierarchyTreeTable.Name ELSE Level1.Name END, '') AS Level1_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 2 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level2.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level2_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 2 THEN HierarchyTreeTable.Name ELSE Level2.Name END, '') AS Level2_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 3 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level3.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level3_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 3 THEN HierarchyTreeTable.Name ELSE Level3.Name END, '') AS Level3_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 4 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level4.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level4_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 4 THEN HierarchyTreeTable.Name ELSE Level4.Name END, '') AS Level4_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 5 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level5.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level5_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 5 THEN HierarchyTreeTable.Name ELSE Level5.Name END, '') AS Level5_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 6 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level6.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level6_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 6 THEN HierarchyTreeTable.Name ELSE Level6.Name END, '') AS Level6_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 7 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level7.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level7_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 7 THEN HierarchyTreeTable.Name ELSE Level7.Name END, '') AS Level7_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 8 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level8.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level8_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 8 THEN HierarchyTreeTable.Name ELSE Level8.Name END, '') AS Level8_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 9 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level9.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level9_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 9 THEN HierarchyTreeTable.Name ELSE Level9.Name END, '') AS Level9_TaskName
FROM --SELECT * FROM
ProjTable
INNER JOIN
HierarchyLinkTable
ON
ProjTable.RECID = HierarchyLinkTable.RefRecID
AND HierarchyLinkTable.REFTABLEID = 624
--Not needed unless a field from HIERARCHY table is needed
--INNER JOIN --SELECT * FROM
-- Hierarchy
--ON
-- Hierarchy.[HierarchyID] = HierarchyLinkTable.[HierarchyID]
INNER JOIN --SELECT * FROM
HierarchyTreeTable
ON
HierarchyTreeTable.[HierarchyID] = HierarchyLinkTable.[HierarchyID]
INNER JOIN --SELECT * FROM
smmActivities
ON
HierarchyTreeTable.RefRECID = smmActivities.RECID
INNER JOIN --SELECT * FROM SRSANALYSISENUMS WHERE ENUMName = 'smmActivityCategory'
dbo.SRSANALYSISENUMS smmActivityCategory_ENUM
ON
smmActivityCategory_ENUM.ENUMName = 'SMMACTIVITYCATEGORY'
AND smmActivityCategory_ENUM.LANGUAGEID = 'en-us'
AND smmActivityCategory_ENUM.ENUMITEMVALUE = smmActivities.CATEGORY
LEFT JOIN
HierarchyTreeTable Level1
ON
Level1.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level1.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level1.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 2, '#')
LEFT JOIN
HierarchyTreeTable Level2
ON
Level2.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level2.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level2.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 3, '#')
LEFT JOIN
HierarchyTreeTable Level3
ON
Level3.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level3.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level3.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 4, '#')
LEFT JOIN
HierarchyTreeTable Level4
ON
Level4.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level4.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level4.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 5, '#')
LEFT JOIN
HierarchyTreeTable Level5
ON
Level5.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level5.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level5.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 6, '#')
LEFT JOIN
HierarchyTreeTable Level6
ON
Level6.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level6.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level6.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 7, '#')
LEFT JOIN
HierarchyTreeTable Level7
ON
Level7.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level7.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level7.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 8, '#')
LEFT JOIN
HierarchyTreeTable Level8
ON
Level8.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level8.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level8.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 9, '#')
LEFT JOIN
HierarchyTreeTable Level9
ON
Level9.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level9.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level9.ELEMENTNUMBER = ProjAXBI_v1_4.fn_SplitActivityByLevel(HierarchyTreeTable.path, 10, '#')
表的定义：
CREATE TABLE [dbo].[SMMACTIVITIES](
[ACTUALWORK] [numeric](32, 16) NOT NULL DEFAULT ((0)),
[BILLINGINFORMATION] [nvarchar](150) NOT NULL DEFAULT (''),
[OUTLOOKCATEGORIES] [nvarchar](255) NOT NULL DEFAULT (''),
[PERCENTAGECOMPLETED] [numeric](32, 16) NOT NULL DEFAULT ((0)),
[SENSITIVITY] [int] NOT NULL DEFAULT ((0)),
[TEAMTASK] [int] NOT NULL DEFAULT ((0)),
[TOTALWORK] [numeric](32, 16) NOT NULL DEFAULT ((0)),
[MILEAGE] [nvarchar](199) NOT NULL DEFAULT (''),
[TASKROLE] [nvarchar](10) NOT NULL DEFAULT (''),
[STATUS] [int] NOT NULL DEFAULT ((0)),
[OUTLOOKGLOBALOBJECTID] [nvarchar](255) NOT NULL DEFAULT (''),
[ACTUALENDDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[ACTUALENDDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[DISPATCHED] [int] NOT NULL DEFAULT ((0)),
[REMINDERDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[REMINDERDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[LASTEDITAXDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[LASTEDITAXDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[RESPONSEREQUESTED] [int] NOT NULL DEFAULT ((0)),
[OUTLOOKRESOURCES] [nvarchar](10) NOT NULL DEFAULT (''),
[ENDDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[ENDDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[RESPONSIBILITYID] [nvarchar](20) NOT NULL DEFAULT (''),
[STARTDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[STARTDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[ORIGINALAPPOINTMENTSTARTDATETIME] [datetime] NOT NULL DEFAULT ('1900-01-01 00:00:00.000'),
[ORIGINALAPPOINTMENTSTARTDATETIMETZID] [int] NOT NULL DEFAULT ((37001)),
[RECURRENCESTATE] [int] NOT NULL DEFAULT ((0)),
[MODIFIED] [int] NOT NULL DEFAULT ((0)),
[ISMASTERAPPOINTMENT] [int] NOT NULL DEFAULT ((0)),
[RESPONSIBLEWORKER] [bigint] NOT NULL DEFAULT ((0)),
[DONEBYWORKER] [bigint] NOT NULL DEFAULT ((0)),
[ISTEMPLATE] [int] NOT NULL DEFAULT ((0)),
[CLOSED] [int] NOT NULL DEFAULT ((0)),
[PURPOSE] [nvarchar](255) NOT NULL DEFAULT (''),
[ACTIVITYNUMBER] [nvarchar](50) NOT NULL DEFAULT (''),
[TYPEID] [nvarchar](20) NOT NULL DEFAULT (''),
[PHASEID] [nvarchar](20) NOT NULL DEFAULT (''),
[CATEGORY] [int] NOT NULL DEFAULT ((0)),
[LOCATION] [nvarchar](255) NOT NULL DEFAULT (''),
[PLANID] [nvarchar](20) NOT NULL DEFAULT (''),
[KEEPSYNCHRONIZED] [int] NOT NULL DEFAULT ((0)),
[REMINDERACTIVE] [int] NOT NULL DEFAULT ((0)),
[REMINDERMINUTES] [int] NOT NULL DEFAULT ((0)),
[OUTLOOKENTRYID] [nvarchar](255) NOT NULL DEFAULT (''),
[SOURCE] [nvarchar](255) NOT NULL DEFAULT (''),
[TASKPRIORITY] [int] NOT NULL DEFAULT ((0)),
[USERMEMO] [nvarchar](max) NULL DEFAULT (NULL),
[EXTERNALMEMO] [nvarchar](max) NULL DEFAULT (NULL),
[ALLDAY] [int] NOT NULL DEFAULT ((0)),
[ACTIVITYTIMETYPE] [int] NOT NULL DEFAULT ((0)),
[ACTIVITYTASKTIMETYPE] [int] NOT NULL DEFAULT ((0)),
[PSAMILESTONE] [int] NOT NULL DEFAULT ((0)),
[PSAMANDATORY] [int] NOT NULL DEFAULT ((0)),
[PSADESCRIPTION] [nvarchar](60) NOT NULL DEFAULT (''),
[PSAACTIVITY] [nvarchar](20) NOT NULL DEFAULT (''),
[PSACATEGORYDEFAULT] [nvarchar](30) NOT NULL DEFAULT (''),
[PSAQUOTATIONID] [nvarchar](20) NOT NULL DEFAULT (''),
[PURCHAGREEMENTHEADER] [bigint] NOT NULL DEFAULT ((0)),
[MODIFIEDDATETIME] [datetime] NOT NULL DEFAULT (dateadd(millisecond, -datepart(millisecond,getutcdate()),getutcdate())),
[MODIFIEDBY] [nvarchar](8) NOT NULL DEFAULT ('?'),
[CREATEDDATETIME] [datetime] NOT NULL DEFAULT (dateadd(millisecond, -datepart(millisecond,getutcdate()),getutcdate())),
[CREATEDBY] [nvarchar](8) NOT NULL DEFAULT ('?'),
[DATAAREAID] [nvarchar](4) NOT NULL DEFAULT ('dat'),
[RECVERSION] [int] NOT NULL DEFAULT ((1)),
[PARTITION] [bigint] NOT NULL DEFAULT ((5637144576.)),
[RECID] [bigint] NOT NULL,
[PMIPPARENTACTIVITYCODE_DEL] [nvarchar](27) NOT NULL DEFAULT (''),
[PMIPACTIVITYCODE] [nvarchar](27) NOT NULL DEFAULT (''),
[PMIPCHILDWBS] [nvarchar](60) NOT NULL DEFAULT (''),
[PMIPPARENTWBS] [nvarchar](60) NOT NULL DEFAULT (''),
CONSTRAINT [I_8142ACTIVITYNUMBERIDX] PRIMARY KEY CLUSTERED
(
[PARTITION] ASC,
[DATAAREAID] ASC,
[ACTIVITYNUMBER] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
ALTER TABLE [dbo].[SMMACTIVITIES] WITH CHECK ADD CHECK (([RECID]<>(0)))
GO
整个加载机制在3分钟内完成，除非到达此部分。从这一部分开始需要30多分钟。 我需要用一些递归CTE来改变这个函数。有什么建议吗？
答案 0 :(得分：1)
[dbo].[fn_SplitActivityByLevel_new]，该函数返回包含两列Activity和level的表
仅接受@Activity varchar(20),@SplitBy char(1) ; WITH CTE AS ( SELECT ht.* ,fn.Activity ,fn.[Level] FROM dbo.HierarchyTreeTable ht CROSS APPLY ( SELECT * FROM [dbo].[fn_SplitActivityByLevel_new](ht.path, '#') ) fn ) SELECT * FROM CTE
看看它返回并分析它并修复bug（如果有的话）。
现在在主查询中加入CTE而不是HierarchyTreeTable并进行必要的更改。
请告诉我你的进展情况。
如果到这里一切都很好，包括表现，那么它仍有进一步改进的潜力。
您不需要recursive。您需要inline table value功能。
答案 1 :(得分：1)
标量函数是MSSQL中的性能杀手，特别是如果你要在JOIN操作中使用它们=（
我尝试制作一个已经准备好从Path + level转换为Activity的查找表并对其进行查找。
有些事情：
;WITH Numbers -- we support up to 9 levels
AS (SELECT Nbr = 1 UNION ALL
SELECT Nbr = 2 UNION ALL
SELECT Nbr = 3 UNION ALL
SELECT Nbr = 4 UNION ALL
SELECT Nbr = 5 UNION ALL
SELECT Nbr = 6 UNION ALL
SELECT Nbr = 7 UNION ALL
SELECT Nbr = 8 UNION ALL
SELECT Nbr = 9 ),
Paths
AS (SELECT DISTINCT Path
FROM HierarchyTreeTable -- I'm guessing this may be a lot of data, trying to limit it by below, adapt as needed
WHERE EXISTS ( SELECT *
FROM HierarchyLinkTable
WHERE REFTABLEID = 624
AND HierarchyLinkTable.[HierarchyID] = HierarchyTreeTable.[HierarchyID] )
SELECT Level = Nbr,
Path,
Activity = Path + '#' -- Important! Add trailing splitter
INTO #HierarchyTree
FROM Numbers,
Paths
-- add index for quick processing
CREATE CLUSTERED INDEX idxHierarchyTree ON #HierarchyTree (Level) WITH (FILLFACTOR = 100)
DECLARE @level int = 0,
@x_pos int
WHILE @level < 10
BEGIN
SELECT @level = @level + 1
UPDATE #HierarchyTree
SET @x_pos = CharIndex('#', Activity),
Activity = (CASE WHEN Level = @level AND @x_pos > 0 THEN Left(Activity, @x_pos - 1)
WHEN Level = @level THEN Activity
ELSE SubString(Activity, @x_pos + 1, Len(Activity)) END)
WHERE Level >= @level
-- select _@level = @level , * FROM #HierarchyTree WHERE [HierarchyID] = 1
END
-- rebuild index for quick joining
CREATE UNIQUE CLUSTERED INDEX idxHierarchyTree ON #HierarchyTree (Path, Level) WITH (DROP_EXISTING = ON, FILLFACTOR = 100)
-- SELECT * FROM #HierarchyTree
-- actual fetch, now with lookups instead of using scalar function
SELECT
SMMACTIVITIES.[PARTITION] AS [PARTITION]
,SMMACTIVITIES.DATAAREAID AS [DATAAREAID]
,SMMACTIVITIES.ACTIVITYNUMBER AS ActivityNumber
,SMMACTIVITIES.PMIPACTIVITYCODE AS PMIPActivityCode
,SMMACTIVITIES.PURPOSE AS ActivityPurpose
,SMMACTIVITYCATEGORY_ENUM.ENUMITEMName AS ActivityCategoryName
,ProjTable.ProjID AS ProjectID --Outrigger - dimension tables joined to other dimension tables
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 1 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level1.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level1_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 1 THEN HierarchyTreeTable.Name ELSE Level1.Name END, '') AS Level1_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 2 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level2.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level2_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 2 THEN HierarchyTreeTable.Name ELSE Level2.Name END, '') AS Level2_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 3 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level3.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level3_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 3 THEN HierarchyTreeTable.Name ELSE Level3.Name END, '') AS Level3_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 4 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level4.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level4_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 4 THEN HierarchyTreeTable.Name ELSE Level4.Name END, '') AS Level4_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 5 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level5.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level5_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 5 THEN HierarchyTreeTable.Name ELSE Level5.Name END, '') AS Level5_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 6 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level6.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level6_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 6 THEN HierarchyTreeTable.Name ELSE Level6.Name END, '') AS Level6_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 7 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level7.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level7_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 7 THEN HierarchyTreeTable.Name ELSE Level7.Name END, '') AS Level7_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 8 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level8.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level8_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 8 THEN HierarchyTreeTable.Name ELSE Level8.Name END, '') AS Level8_TaskName
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 9 THEN CAST( CAST(HierarchyTreeTable.SiblingNumber AS INT) AS NVARCHAR(4)) ELSE CAST( CAST( Level9.SiblingNumber AS INT) AS NVARCHAR(4)) END, '') AS Level9_WBS
,ISNULL(case when HierarchyTreeTable.LEVEL_ = 9 THEN HierarchyTreeTable.Name ELSE Level9.Name END, '') AS Level9_TaskName
FROM --SELECT * FROM
ProjTable
INNER JOIN
HierarchyLinkTable
ON
ProjTable.RECID = HierarchyLinkTable.RefRecID
AND HierarchyLinkTable.REFTABLEID = 624
--Not needed unless a field from HIERARCHY table is needed
--INNER JOIN --SELECT * FROM
-- Hierarchy
--ON
-- Hierarchy.[HierarchyID] = HierarchyLinkTable.[HierarchyID]
INNER JOIN --SELECT * FROM
HierarchyTreeTable
ON
HierarchyTreeTable.[HierarchyID] = HierarchyLinkTable.[HierarchyID]
INNER JOIN --SELECT * FROM
smmActivities
ON
HierarchyTreeTable.RefRECID = smmActivities.RECID
INNER JOIN --SELECT * FROM SRSANALYSISENUMS WHERE ENUMName = 'smmActivityCategory'
dbo.SRSANALYSISENUMS smmActivityCategory_ENUM
ON
smmActivityCategory_ENUM.ENUMName = 'SMMACTIVITYCATEGORY'
AND smmActivityCategory_ENUM.LANGUAGEID = 'en-us'
AND smmActivityCategory_ENUM.ENUMITEMVALUE = smmActivities.CATEGORY
LEFT JOIN
HierarchyTreeTable Level1
ON
Level1.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level1.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level1.ELEMENTNUMBER = (SELECT Activity FROM #HierarchyTree LookUp1 WHERE LookUp1.Path = HierarchyTreeTable.path AND LookUp1.Level = 2)
LEFT JOIN
HierarchyTreeTable Level2
ON
Level2.DataAreaID = HierarchyTreeTable.DataAreaID
AND Level2.[PARTITION] = HierarchyTreeTable.[PARTITION]
AND Level2.ELEMENTNUMBER = (SELECT Activity FROM #HierarchyTree LookUp2 WHERE LookUp2.Path = HierarchyTreeTable.path AND LookUp2.Level = 2)
etc...
希望这能帮到你......