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# Convert Comma Seporated Column Into Rows in SQL

Posted on 2014-04-17
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I have a code that will do what will do this the problem is it has a limit of 100 comma separate field that it can do.  I need on that handle anywhere from 1 to 500 or more.

Here is the code that i am currently useing.
``````;with tmp(VEND_ITEM_NO, MFG, MODEL, Data) as (
select VEND_ITEM_NO, MFG, LEFT(MODEL, CHARINDEX(',',MODEL+',')-1),
STUFF(MODEL, 1, CHARINDEX(',',MODEL+','), '')
from USER_TEMP_TABLE1 where MFG in ('SONY')
union all
select VEND_ITEM_NO, MFG, LEFT(Data, CHARINDEX(',',Data+',')-1),
STUFF(Data, 1, CHARINDEX(',',Data+','), '')
from tmp
where Data > ''
)
select VEND_ITEM_NO, MFG, MODEL
from tmp
order by VEND_ITEM_NO
``````

Attached is a example of how the data looksexample.xlsx
0
Question by:Littlet5621

LVL 32

Expert Comment

ID: 40007040
i use the following function to split a comma delimited string into a temp table and have never run into any column constraints:

``````CREATE FUNCTION dbo.SplitStrings
(
@List NVARCHAR(MAX),
@Delimiter NVARCHAR(255)
)
RETURNS TABLE
WITH SCHEMABINDING AS
RETURN
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),
E2(N)        AS (SELECT 1 FROM E1 a, E1 b),
E4(N)        AS (SELECT 1 FROM E2 a, E2 b),
E42(N)       AS (SELECT 1 FROM E4 a, E2 b),
cteTally(N)  AS (SELECT 0 UNION ALL SELECT TOP (DATALENGTH(ISNULL(@List,1)))
ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E42),
cteStart(N1) AS (SELECT t.N+1 FROM cteTally t
WHERE (SUBSTRING(@List,t.N,1) = @Delimiter OR t.N = 0))
SELECT Item = SUBSTRING(@List, s.N1, ISNULL(NULLIF(CHARINDEX(@Delimiter,@List,s.N1),0)-s.N1,8000))
FROM cteStart s;
``````
0

LVL 8

Accepted Solution

ProjectChampion earned 500 total points
ID: 40007107
That's because your script is recursive and by default the max depth of recursion is 100; but you can override it using MAXRECURSION hint, for instance:

SELECT ....
....
WHERE ...
OPTION  ( MAXRECURSION 1000 )
0

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