Вот уродливый способ, который может не масштабироваться, но он работает.
Вот Скрипка
;with cte as(
select
DeliveryExtension
, ExtensionSettings
, x.ItemNumber
, x.Item
from @TableData
cross apply dbo.DelimitedSplit8K(replace(replace(replace(replace(replace(cast(ExtensionSettings as varchar(max)),'<ParameterValue>',''),'</ParameterValue>',''),'<ParameterValues>',''),'</Name>',''),'</Value>',''),'<Name>') x
where x.Item != '')
select
c.DeliveryExtension
,[TO] = max(replace(t.Item,'Value>',''))
,[CC] = max(replace(cc.Item,'Value>',''))
,[Format] = max(replace(form.Item,'Value>',''))
from cte c
left join cte t on
t.ItemNumber = c.ItemNumber + 1
and cast(c.ExtensionSettings as varchar(max)) = cast(t.ExtensionSettings as varchar(max))
and c.Item = 'Name>TO'
left join cte cc on
cc.ItemNumber = c.ItemNumber + 1
and cast(c.ExtensionSettings as varchar(max)) = cast(cc.ExtensionSettings as varchar(max))
and c.Item = 'Name>CC'
left join cte form on
form.ItemNumber = c.ItemNumber + 1
and cast(c.ExtensionSettings as varchar(max)) = cast(form.ExtensionSettings as varchar(max))
and c.Item in ('Name>RenderFormat','Name>RENDER_FORMAT')
group by
c.DeliveryExtension, cast(c.ExtensionSettings as varchar(max))
Это зависитна функции сплиттера.Это тот, который я использовал
CREATE FUNCTION [dbo].[DelimitedSplit8K] (@pString VARCHAR(8000), @pDelimiter CHAR(1))
--WARNING!!! DO NOT USE MAX DATA-TYPES HERE! IT WILL KILL PERFORMANCE!
RETURNS TABLE WITH SCHEMABINDING AS
RETURN
/* "Inline" CTE Driven "Tally Table" produces values from 1 up to 10,000... enough to cover VARCHAR(8000)*/
WITH E1(N) AS (
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL
SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1 UNION ALL SELECT 1
), --10E+1 or 10 rows
E2(N) AS (SELECT 1 FROM E1 a, E1 b), --10E+2 or 100 rows
E4(N) AS (SELECT 1 FROM E2 a, E2 b), --10E+4 or 10,000 rows max
cteTally(N) AS (--==== This provides the "base" CTE and limits the number of rows right up front
-- for both a performance gain and prevention of accidental "overruns"
SELECT TOP (ISNULL(DATALENGTH(@pString),0)) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
),
cteStart(N1) AS (--==== This returns N+1 (starting position of each "element" just once for each delimiter)
SELECT 1 UNION ALL
SELECT t.N+1 FROM cteTally t WHERE SUBSTRING(@pString,t.N,1) = @pDelimiter
),
cteLen(N1,L1) AS(--==== Return start and length (for use in substring)
SELECT s.N1,
ISNULL(NULLIF(CHARINDEX(@pDelimiter,@pString,s.N1),0)-s.N1,8000)
FROM cteStart s
)
--===== Do the actual split. The ISNULL/NULLIF combo handles the length for the final element when no delimiter is found.
SELECT ItemNumber = ROW_NUMBER() OVER(ORDER BY l.N1),
Item = SUBSTRING(@pString, l.N1, l.L1)
FROM cteLen l
GO