CREATE FUNCTION [dbo].[EscapeXml](@data NVARCHAR(MAX))
RETURNS NVARCHAR(MAX)
AS
BEGIN
DECLARE @t NVARCHAR(MAX)
--< (<), & (&), > (>), " ("), and ' (')
SELECT @t = REPLACE(REPLACE(REPLACE(REPLACE(@data,'<','<'),'&','&'),'"','"'),'''',''')
RETURN @t
END
GO
CREATE FUNCTION [dbo].[fnSplit](@data NVARCHAR(MAX), @delimiter NVARCHAR(5))
RETURNS @t TABLE (rowNum int IDENTITY(1,1), data NVARCHAR(max), descriptor varchar(255) NULL)
AS
BEGIN
SELECT @data = [dbo].[EscapeXml](@data)
DECLARE @textXML XML;
SELECT @textXML = CAST('' + REPLACE(@data, @delimiter, ' ') + ' ' AS XML);
INSERT INTO @t(data)
SELECT RTRIM(LTRIM(T.split.value('.', 'nvarchar(max)'))) AS data
FROM @textXML.nodes('/d') T(split)
RETURN
END
Usage:
SELECT sentence1.data as common
FROM dbo.fnSplit('This is sentence1 test',' ') sentence1
INNER JOIN dbo.fnSplit('This is sentence2 test',' ') sentence2 ON sentence1.data = sentence2.data
Output:common
--------
This
is
test
