Query to showed all level of BOM details, sort by create/update date

Question

Hi expert,
I need a query to display all the level of BOM and can be sort by create / update date.
The display of query should be as below:
A (1st level) Parent BOM
B (2nd level) Child BOM 1
B (2nd level) Child BOM 2
C (3rd level)  Child BOM 2 - 1
C (3rd level)  Child BOM 2 - 2
B (2nd level) Child BOM 3
B (2nd level) Child BOM 4
Below is the BOM  query that can only display up to 2nd level and cannot sort by date.
Can someone please help to modify or there is a better query?
Thanks
Declare @BOMDetails table(TreeType Nvarchar(MAX),PItem NVARCHAR(Max),PName NVARCHAR(MAX),CItem  NVARCHAR(Max),CName NVARCHAR(MAX),[Quantity] Numeric(18,2),[UoM] NVARCHAR(MAX),[WareHouse] NVARCHAR(MAX),[IssuMethod] NVARCHAR(MAX),[PriceList] NVARCHAR(MAX))
INSERT Into @BOMDetails
SELECT T1.TreeType ,T0.Father AS [Parent Code], T2.ItemName AS [Parent Description], T0.Code AS [Child Code],
T1.ItemName AS [Child Description], T0.Quantity ,T0.Uom ,T0.Warehouse ,T0.IssueMthd,T0.PriceList  
FROM ITT1 T0 INNER JOIN OITM T1 ON T0.Code = T1.ItemCode
             INNER JOIN OITM T2 ON T0.Father = T2.ItemCode
Union All
SELECT ' ',T0.Father as [Parent Code], T2.ItemName AS [Parent Description], ' ', ' ', 0, ' ',' ',' ' , 0 FROM ITT1 T0 INNER JOIN OITM T1
ON T0.Code = T1.ItemCode INNER JOIN OITM T2 ON T0.Father = T2.ItemCode
Group By T0.Father,T2.ItemName
ORDER BY T0.Father,t0.Code
update @BOMDetails set PItem='' ,PName='' where TreeType='N' or TreeType='P'
Select PItem as[Parent Code] ,PName as [Parent Description],CItem as [Child Code],CName as [Child Description],Quantity,UoM,IssuMethod ,PriceList    from @BOMDetails

Answer 1

Hi,
Try this query and modify as per your requirement:
SELECT
T0.[Father] as
'Assembly',T0.[code] as 'Component1', t10.[ItemName]
'Description1',T1.[Code] as 'Component2', t11.[ItemName]
'Description2', T2.[Code] as 'Component3', t12.[ItemName]
'Description3', T3.[Code] as 'Component4', t13.[ItemName]
'Description4',T4.[Code] as 'Component5', t14.[ItemName]
'Description5', T5.[Code] as 'Component6', t15.[ItemName]
'Description6'
FROM
ITT1 T0 LEFT OUTER
JOIN ITT1 T1 on T0.Code = T1.Father LEFT OUTER JOIN ITT1 T2 on
T1.Code = T2.Father LEFT OUTER JOIN ITT1 T3 on T2.Code = T3.Father
LEFT OUTER JOIN ITT1 T4 on T3.Code = T4.Father LEFT OUTER JOIN ITT1
T5 on T4.Code = T5.Father LEFT OUTER JOIN ITT1 T6 on T5.Code =
T6.Father left outer join oitm t20 on t0.father = t20.itemcode left
outer join oitm t10 on t0.code = t10.itemcode left outer join oitm
t11 on t1.code = t11.itemcode left outer join oitm t12 on t2.code =
t12.itemcode left outer join oitm t13 on t3.code = t13.itemcode left
outer join oitm t14 on t4.code = t14.itemcode left outer join oitm
t15 on t5.code = t15.itemcode
Thanks & Regards,
Nagarajan