Convert csv values to table - sql-server-2008

Question

DATA:
id data
114 10047,10001,10003
123 90080
233 10020,10029,10032,10065
TABLE:
DECLARE #TEMP TABLE (id int
,data varchar(50)
PRIMARY KEY (id)
)
INSERT INTO #TEMP VALUES (114,'10047,10001,10003')
INSERT INTO #TEMP VALUES (123,'90080')
INSERT INTO #TEMP VALUES (233,'10020,10029,10032,10065')
Given the above data I am trying to convert the comma separated values to a table so I can join the values, I already have a function that works fine by taking a single value as a parameter, how do I call the function so that it goes through each of the rows above (without using cursors) and outputs the values as such :
id data
114 10047
114 10001
114 10003
123 90080
233 10020
233 10029
233 10032
233 10065
Function:
FUNCTION [dbo].[ConvertCsvToTable](#csvList nvarchar(MAX))
RETURNS #csvTable table([id] int NOT NULL)
AS
BEGIN
DECLARE #pos int
DECLARE #nextPos int
DECLARE #valueLen int
SELECT #pos = 0, #nextPos = 1
WHILE #nextPos > 0
BEGIN
SELECT #nextPos = charindex(',', #csvList, #pos + 1)
SELECT #valueLen = CASE WHEN #nextPos > 0
THEN #nextPos
ELSE len(#csvList) + 1
END - #pos - 1
INSERT #csvTable (id)
VALUES (convert(int, substring(#csvList, #pos + 1, #valueLen)))
SELECT #pos = #nextPos
END
RETURN
END

Answer 1

You can use simplier solution if you convert your comma separated values to XML data. Your result could be achieved with a single select statement like as follows:
-- Improve table structure adding XML field
DECLARE #TEMP TABLE (id int
,data varchar(50)
,xmldata xml
PRIMARY KEY (id)
)
-- Your initial data
INSERT INTO #TEMP VALUES (114,'10047,10001,10003',null)
INSERT INTO #TEMP VALUES (123,'90080',null)
INSERT INTO #TEMP VALUES (233,'10020,10029,10032,10065',null)
-- Transforming CSV string to XML
UPDATE #TEMP
SET xmldata = CONVERT(XML, '<DATA><RAW>'+REPLACE(data, ',', '</RAW><RAW>')+'</RAW></DATA>')
-- Query XML data to obtain required result
SELECT t.id,
x.xmldata.value('(.)[1]','INT') AS data
FROM #TEMP t
CROSS APPLY t.xmldata.nodes('/DATA/RAW') x(xmldata);