--函數中不能調用動態SQL，使用用存儲過程吧。如果還要對函數做其他操作，換成存儲過程不方便，可以考慮把其他操作一起封裝在存儲過程里面。如：
create
proc [dbo].[FUN_YSCL_GetSpvalue]
@FormID
VARCHAR
(200)
AS
BEGIN
DECLARE
@TableID
VARCHAR
(20)
SELECT
@TableID = tb.vcTableID
FROM
tG10Money tm
LEFT
JOIN
tG10Tables tb
ON
tm.iFormType = tb.ID
WHERE
vcFormID = @FormID
DECLARE
@strSQL NVARCHAR(2000)
SET
@strSQL =
''
SET
@strSQL +=
' SELECT '
SET
@strSQL +=
'@spvalue=tb.SPValue'
SET
@strSQL +=
' FROM '
+ @TableID +
' tb'
SET
@strSQL +=
' RIGHT JOIN ( SELECT DISTINCT'
SET
@strSQL +=
' FormID ,'
SET
@strSQL +=
' MAX(WFNodeIndex) AS maxnode'
SET
@strSQL +=
' FROM tFS1001'
SET
@strSQL +=
' WHERE RowType = 1'
SET
@strSQL +=
' GROUP BY WFID ,'
SET
@strSQL +=
' FormID'
SET
@strSQL +=
' ) maxnode'
SET
@strSQL +=
' ON tb.FormID = maxnode.FormID'
SET
@strSQL +=
' AND tb.WFNodeIndex = maxnode.maxnode'
SET
@strSQL +=
' WHERE tb.FormID= '
''
+@FormID+
''
''
DECLARE
@spvalue
VARCHAR
(20)
EXEC
sp_executesql @strSQL,N
'@spvalue VARCHAR(20) out'
,@spvalue
OUTPUT
select
FormID,@spvalue
FROM
tFormMoney
END