Perform a Series of Calculations on a Multiple CTE Table - sql

Question

Can't seem to figure out the formula for performing a series of functions on my query. I need to subtract the figures in the DIF column depending on the STAT code. I need to perform the same series of functions in every case. STAT I0099 MINUS E0002, this result will always be the denominator. After this I need to take each of the other lines in the table and divide them by this result.
1st (2811-98), 2nd E0013 (52/(2811-98)) 3rd E0019 (405/(2811-98)) 4th E0004 (2256/(2811-98) End.
I've tried adding rollup and a couple of others things, I saw on here, but none were successful.
WITH i_stat_cte
AS
(
SELECT ROW_NUMBER() OVER(partition by STAT Order by UDATE ) as
Rn,JCDS_SOGR.OBJNR, JCDS_SOGR.STAT,JCDS_SOGR.UDATE,JCDS_SOGR.CHGNR,JCDS_SOGR.CDTCODE,JCDS_SOGR.CHIND,JCDS_SOGR.INACT,JCDS_SOGR.TCODE,TJ02T.TXT30, EQUI.BAUJJ as "Year", T370K_T.EARTX as Model,
LAG(UDATE) OVER(partition by STAT Order by UDATE ) As PrevUDate,
COUNT(*) OVER(partition by STAT) As [Count]
from JCDS_SOGR
Join TJ02T on JCDS_SOGR.STAT = TJ02T.ISTAT
Join EQUI on JCDS_SOGR.OBJNR = EQUI.OBJNR
Join T370K_T on equi.EQART = T370K_T.EQART
where jcds_sogr.OBJNR = 'IE000000000010003137'
and TJ02T.SPRAS = 'E'
)
,
e_stat_cte
AS
(
SELECT ROW_NUMBER() OVER(partition by STAT Order by UDATE ) as Rn, JCDS_SOGR.OBJNR, JCDS_SOGR.STAT,JCDS_SOGR.UDATE,JCDS_SOGR.CHGNR,JCDS_SOGR.CDTCODE,JCDS_SOGR.CHIND,JCDS_SOGR.INACT,JCDS_SOGR.TCODE,TJ30T.TXT30, EQUI.BAUJJ as "Year", T370K_T.EARTX as Model,
LAG(UDATE) OVER(partition by STAT Order by UDATE ) As PrevUDate,
COUNT(*) OVER(partition by STAT) As [Count], TJ30T.MANDT as Client
from JCDS_SOGR
Join TJ30T on JCDS_SOGR.STAT = TJ30T.ESTAT
Join EQUI on JCDS_SOGR.OBJNR = EQUI.OBJNR
Join T370K_T on equi.EQART = T370K_T.EQART
where jcds_sogr.OBJNR = 'IE000000000010003137'
and TJ30T.SPRAS = 'E'AND TJ30T.MANDT='400'
AND TJ30T.STSMA = 'VEHICLE' AND T370K_T.MANDT = '400')
SELECT Max(rn) As [Count],
OBJNR,Year, Model, STAT,TXT30,
SUM(CASE WHEN rn%2=0 THEN DATEDIFF(d,PrevUDate,UDATE)
WHEN rn=[Count] THEN DATEDIFF(d,UDATE,getDate())
ELSE 0 END) as DIF
from i_stat_cte
Group BY OBJNR, STAT,TXT30, Year, Model
UNION
SELECT Max(rn) As [Count],
OBJNR,Year, Model, STAT,TXT30,
SUM(CASE WHEN rn%2=0 THEN DATEDIFF(d,PrevUDate,UDATE)
WHEN rn=[Count] THEN DATEDIFF(d,UDATE,getDate())
ELSE 0 END) as DIF
from e_stat_cte
Group BY OBJNR, STAT,TXT30, Year, Model
EXPECTED RESULTS
Count OBJNR Year Model STAT TXT30 DIF Avail | Calculations
1 IE000000000010003137 2011 Orion I0099 Avail 2810
2 IE000000000010003137 2011 Orion E0002 Await 98
4 IE000000000010003137 2011 Orion E0013 Non Op 52 .0191740 = (52/(2810-98))
4 IE000000000010003137 2011 Orion E0019 OperBk 405 .1493363 = (405/(2810-98))
7 IE000000000010003137 2011 Orion E0004 Oper 2255 .8314897 = (2255/(2810-98))

Answer 1

--The code below is a conversion of your code from CTE to temp tables.
--Hopefully you can perform better diagnostics on it. Just evaluate each of the data you are producing on your last query. I think the UNION is a bit sloppy. Are you sure it's really a UNION and not a UNION ALL?
DROP TABLE IF EXISTS #i_stat_cte
SELECT ROW_NUMBER() OVER(partition by STAT Order by UDATE ) as
Rn,JCDS_SOGR.OBJNR, JCDS_SOGR.STAT,JCDS_SOGR.UDATE,JCDS_SOGR.CHGNR,JCDS_SOGR.CDTCODE,JCDS_SOGR.CHIND,JCDS_SOGR.INACT,JCDS_SOGR.TCODE,TJ02T.TXT30, EQUI.BAUJJ as "Year", T370K_T.EARTX as Model,
LAG(UDATE) OVER(partition by STAT Order by UDATE ) As PrevUDate,
COUNT(*) OVER(partition by STAT) As [Count]
INTO #i_stat_cte
from JCDS_SOGR
Join TJ02T on JCDS_SOGR.STAT = TJ02T.ISTAT
Join EQUI on JCDS_SOGR.OBJNR = EQUI.OBJNR
Join T370K_T on equi.EQART = T370K_T.EQART
where jcds_sogr.OBJNR = 'IE000000000010003137'
and TJ02T.SPRAS = 'E'
DROP TABLE IF EXISTS #e_stat_cte
SELECT ROW_NUMBER() OVER(partition by STAT Order by UDATE ) as Rn, JCDS_SOGR.OBJNR, JCDS_SOGR.STAT,JCDS_SOGR.UDATE,JCDS_SOGR.CHGNR,JCDS_SOGR.CDTCODE,JCDS_SOGR.CHIND,JCDS_SOGR.INACT,JCDS_SOGR.TCODE,TJ30T.TXT30, EQUI.BAUJJ as "Year", T370K_T.EARTX as Model,
LAG(UDATE) OVER(partition by STAT Order by UDATE ) As PrevUDate,
COUNT(*) OVER(partition by STAT) As [Count], TJ30T.MANDT as Client
INTO #e_stat_cte
from JCDS_SOGR
Join TJ30T on JCDS_SOGR.STAT = TJ30T.ESTAT
Join EQUI on JCDS_SOGR.OBJNR = EQUI.OBJNR
Join T370K_T on equi.EQART = T370K_T.EQART
where jcds_sogr.OBJNR = 'IE000000000010003137'
and TJ30T.SPRAS = 'E'AND TJ30T.MANDT='400'
AND TJ30T.STSMA = 'VEHICLE' AND T370K_T.MANDT = '400'
-- VERIFY YOU GET WHAT YOU EXPECT
select * from #i_stat_cte
-- VERIFY YOU GET WHAT YOU EXPECT
select * from #e_stat_cte
-- VERIFY YOU GET WHAT YOU EXPECT
SELECT Max(rn) As [Count],
OBJNR,Year, Model, STAT,TXT30,
SUM(CASE WHEN rn%2=0 THEN DATEDIFF(d,PrevUDate,UDATE)
WHEN rn=[Count] THEN DATEDIFF(d,UDATE,getDate())
ELSE 0 END) as DIF
from #i_stat_cte
Group BY OBJNR, STAT,TXT30, Year, Model
--UNION
-- VERIFY YOU GET WHAT YOU EXPECT
SELECT Max(rn) As [Count],
OBJNR,Year, Model, STAT,TXT30,
SUM(CASE WHEN rn%2=0 THEN DATEDIFF(d,PrevUDate,UDATE)
WHEN rn=[Count] THEN DATEDIFF(d,UDATE,getDate())
ELSE 0 END) as DIF
from #e_stat_cte
Group BY OBJNR, STAT,TXT30, Year, Model