Split SQL Strings

22 12 2008

If you have a need to parse a string array passed in as a variable into say a stored proc, use the following function to split it:

CREATE FUNCTION dbo.fnSplit(
@sInputList VARCHAR(8000) — List of delimited items
, @sDelimiter VARCHAR(8000) = ‘,’ — delimiter that separates items
) RETURNS @List TABLE (item VARCHAR(8000))

BEGIN
DECLARE @sItem VARCHAR(8000)
WHILE CHARINDEX(@sDelimiter,@sInputList,0) 0
BEGIN
SELECT
@sItem=RTRIM(LTRIM(SUBSTRING(@sInputList,1,CHARINDEX(@sDelimiter,@sInputList,0)-1))),
@sInputList=RTRIM(LTRIM(SUBSTRING(@sInputList,CHARINDEX(@sDelimiter,@sInputList,0)+LEN(@sDelimiter),LEN(@sInputList))))

IF LEN(@sItem) > 0
INSERT INTO @List SELECT @sItem
END

IF LEN(@sInputList) > 0
INSERT INTO @List SELECT @sInputList — Put the last item in
RETURN
END
GO
–Test
select * from fnSplit(‘1,22,333,444,,5555,666’, ‘,’)
select * from fnSplit(‘1##22#333##444′,’##’) –note second item has embedded #
select * from fnSplit(‘1 22 333 444 5555 666’, ‘ ‘)

Original Article Here : http://searchwindevelopment.techtarget.com/tip/0,289483,sid8_gci932171,00.html#

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