Missing Value Search in string seperated by comma - sql

Question

Please help me if it is possible in sql.
Hello, may anyone please share their expertise, i am not very sure whether it is possible in SQL
SIZE OF TABLE: 5GB
I am trying to see invalid VALIDATION_ID present in a child table for a given PRODUCT_LINE
SO in below scenario 114 is not present for PRODUCT_LINE Passive in master table but present in child table.
DECLARE #CHILD TABLE
(
PRODUCT_LINE VARCHAR (50),
COMPONENT VARCHAR (50),
MODEL VARCHAR (50),
YEARS VARCHAR (50),
VALIDATION_ID VARCHAR (50)
)
INSERT #CHILD
SELECT 'PASSIVE','RESISTOR','CARBON','2005','V114' UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005','V098, E009, V034' UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005','V201' UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005','V201,V098,V114' UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005',null UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005','null,V098,E009' UNION ALL
SELECT 'PASSIVE','RESISTOR','CARBON','2005','null,V114' UNION ALL
SELECT * FROM #CHILD
DECLARE #PARENT TABLE
(
PRODUCT_LINE VARCHAR (50),
VALIDATION_ID VARCHAR (50)
)
INSERT #PARENT
SELECT 'PASSIVE','V098' UNION ALL
SELECT 'PASSIVE','E009' UNION ALL
SELECT 'PASSIVE','V201' UNION ALL
SELECT 'PASSIVE','V034'
EXPECTED OUTPUT
PRODUCT_LINE COMPONENT MODEL YEARS VALIDATION_ID INVALID_VALIDATION_ID
PASSIVE RESISTOR CARBON 2005 V114 V114
PASSIVE RESISTOR CARBON 2005 V201,V098,V114 V114
'PASSIVE','RESISTOR','CARBON','2005','null,V114',V114
Thanks ....

Answer 1

you will definately required a CSV splitter. There are many, just search for it. Here I am using Jeff's DelimitedSplit8K()
SELECT c.*, INVALID_VALIDATION_ID = v.Item
FROM #CHILD c
CROSS APPLY dbo.DelimitedSplit8K(c.VALIDATION_ID, ',') v
WHERE NOT EXISTS
(
SELECT *
FROM #PARENT p
WHERE p.PRODUCT_LINE = c.PRODUCT_LINE
and p.VALIDATION_ID = LTRIM(v.Item)
)
if there are more than one invalid ID, it will appear as multiple line. If you want the multiple invalid ID to appear as CSV, you will need additional query to concatenate it. Let me know if you required that
EDIT : Updated query to show invalid ID in CSV
; WITH
CTE AS
(
SELECT c.*, INVALID_VALIDATION_ID = v.Item,
RN = DENSE_RANK() OVER (ORDER BY PRODUCT_LINE, COMPONENT, MODEL, YEARS, VALIDATION_ID)
FROM #CHILD c
CROSS APPLY dbo.DelimitedSplit8K(c.VALIDATION_ID, ',') v
WHERE c.VALIDATION_ID IS NOT NULL -- edit [2]
AND NOT EXISTS
(
SELECT *
FROM #PARENT p
WHERE p.PRODUCT_LINE = c.PRODUCT_LINE
and p.VALIDATION_ID = LTRIM(v.Item)
)
)
SELECT DISTINCT
PRODUCT_LINE, COMPONENT, MODEL, YEARS, VALIDATION_ID,
INVALID_VALIDATION_ID = STUFF(csv, 1, 1, '')
FROM CTE c
CROSS APPLY
(
SELECT ',' + x.INVALID_VALIDATION_ID
FROM CTE x
WHERE x.RN = c.RN
ORDER BY INVALID_VALIDATION_ID
FOR XML PATH('')
) i (csv)

Answer 2

You Need to Try This...
SELECT *
FROM
(
SELECT c.*, INVALID_VALIDATION_ID = x.Value
FROM #CHILD c
CROSS APPLY dbo.Split(c.VALIDATION_ID, ',') x
WHERE NOT EXISTS
(
SELECT *
FROM #PARENT p
WHERE p.PRODUCT_LINE = c.PRODUCT_LINE
and p.VALIDATION_ID = x.Value
)
) AS Q
WHERE INVALID_VALIDATION_ID IS NOT NULL AND INVALID_VALIDATION_ID != 'null'
Here dbo.split function is ..
CREATE FUNCTION [dbo].[Split]
(#List varchar(8000),#SplitOn varchar(5))
RETURNS #RtnValue table
(Id int identity(1,1),Value nvarchar(100))
AS
BEGIN
Set #List = Replace(#List,'''','')
While (Charindex(#SplitOn,#List)>0)
Begin
Insert Into #RtnValue (value)
Select
Value = ltrim(rtrim(Substring(#List,1,Charindex(#SplitOn,#List)-1)))
Set #List = Substring(#List,Charindex(#SplitOn,#List)+len(#SplitOn),len(#List))
End
Insert Into #RtnValue (Value)
Select Value = ltrim(rtrim(#List))
Return
END
try this......