sql sp_xml_preparedocument 函数运用实例

Posted 2020-07-24

表结构：

CREATE FUNCTION f_splitSTR(
@s   varchar(8000),  --待分拆的字符串
@split varchar(10)     --数据分隔符
)RETURNS @re TABLE(col varchar(100))
AS
BEGIN
 --创建分拆处理的辅助表(用户定义函数中只能操作表变量)
 DECLARE @t TABLE(ID int IDENTITY,b bit)
 INSERT @t(b) SELECT TOP 8000 0 FROM syscolumns a,syscolumns b

 INSERT @re SELECT SUBSTRING(@s,ID,CHARINDEX(@split,@s+@split,ID)-ID)
 FROM @t
 WHERE ID<=LEN(@s+\'a\') 
  AND CHARINDEX(@split,@split+@s,ID)=ID
 RETURN
END
GO

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Create proc Test
As
Begin
    Declare @data xml
    Declare @idoc int
    Set @data=
    (
        Select  ipduid as \'@pduid\' , sConfig.query(\'/items/item\')  From xxx_BaseInfo
        where sConfig is not null
         FOR xml path,root(\'configinfo\') 
    )
    --create an internal representation of the xml document.
    exec sp_xml_preparedocument @idoc output, @data
    -- execute a select statement that uses the openxml rowset provider.

    Create table #Tmp
    (
            pduid varchar(50),
            prodLine varchar(50),
            proFamily varchar(50),
            proPdt varchar(50),
            prodNo varchar(50)
    )

Insert Into #Tmp
    Select * From (
            Select pduid ,  (Select col From dbo.f_splitSTR(customerid,\'/\') Where id=1) As prodLine,
            (Select col From dbo.f_splitSTR(customerid,\'/\') Where id=2) As prodFamily,
            (Select col From dbo.f_splitSTR(customerid,\'/\') Where id=3) As prodPdt,
            (Select col From dbo.f_splitSTR(customerid,\'/\') Where id=4) As prodNo
    From openxml (@idoc, \'/configinfo/row/item\',2)
    With (
                pduid  varchar(50)    \'../@pduid\' ,
                customerid varchar(500) \'@id\'
             )
    ) as T


exec sp_xml_removedocument @idoc

Select * from #Tmp

End

View Code