How to convert int column value into nvarchar in where condition in sql server database?

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SQL-Server-2005

I need to find out single userid within a comma separated list of userid's but the problem is that userid is integer and the list of userid's is in nvarchar as it contains comma separated list so therefore it is showing the following error

Conversion failed when converting the nvarchar value '11,18' to data type int.

Please let me know how can I do it.
thnx in advance.

Posted 26-Apr-13 1:41am

jackson kumar

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[no name] 26-Apr-13 7:46am

That is because the string "11,18" cannot be converted to an int. You need use the string manipulation functions to split the string.

[no name] 26-Apr-13 8:19am

but how i can do it??

[no name] 26-Apr-13 8:37am

You have to actually try something. This has been asked and answered many many many times already.

[no name] 26-Apr-13 8:42am

the values in the userid list is in the form ('1,15,16,33') and this is showing error but if i'm using (1,15,16,33) then it is working fine and list of userid'd is populated with the output of an sql query so how can i get into (1,15,16,33) form.

gvprabu 26-Apr-13 8:14am

Split function error - The statement terminated. The maximum recursion 100 has been exhausted before statement completion[^]

Check the post... U can you UDF (User Define Functions) for Split Process then Convert it will works.

2 solutions

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Maciej Los · Answer 1 · 2013-04-26T02:16:00

You can achieve that using CTE[^].

SQL

DECLARE @tbl TABLE(Ids VARCHAR(50))
INSERT INTO @tbl (Ids)
VALUES('1,2,3,5')
INSERT INTO @tbl (Ids)
VALUES('7,11,12,15,33')
INSERT INTO @tbl (Ids)
VALUES('9,10,22,35,43')
INSERT INTO @tbl (Ids)
VALUES('13,19,32,45,53')


;WITH cteIDs AS
(
	SELECT ROW_NUMBER() OVER(ORDER BY Ids) AS RowNo, CONVERT(INT, LEFT(Ids, CHARINDEX(',',Ids)-1)) AS Id, RIGHT(Ids,LEN(Ids)-CHARINDEX(',',Ids)) AS Remainder
	FROM @tbl
	WHERE CHARINDEX(',',Ids)>0
	UNION ALL
	SELECT RowNo, CONVERT(INT, LEFT(Remainder, CHARINDEX(',',Remainder)-1)) AS Id, RIGHT(Remainder,LEN(Remainder)-CHARINDEX(',',Remainder)) AS Remainder
	FROM cteIds
	WHERE CHARINDEX(',',Remainder)>0
	UNION ALL
	SELECT RowNo, Remainder AS Id, NULL AS Remainder
	FROM cteIds
	WHERE CHARINDEX(',',Remainder)=0
)
SELECT *
FROM cteIds
ORDER BY Id, RowNo

Result:

RowNo   Id      Remainder
1	1	2,3,5
1	2	3,5
1	3	5
1	5	NULL
3	7	11,12,15,33
4	9	10,22,35,43
4	10	22,35,43
3	11	12,15,33
3	12	15,33
2	13	19,32,45,53
3	15	33
2	19	32,45,53
4	22	35,43
2	32	45,53
3	33	NULL
4	35	43
4	43	NULL
2	45	53
2	53	NULL

gvprabu · Answer 2 · 2013-04-26T02:17:00

Solution 2

Hi,

U can you UDF (User Define Functions) for Split Process then Convert it will works.
Check the post...
Split function error - The statement terminated. The maximum recursion 100 has been exhausted before statement completion[^]
Regards,
GVPrabu

Posted 26-Apr-13 2:17am

gvprabu