Find the missing words - sql

Question

Hi I am creating a module to find the missing words from the string in SQL
If I have a string
"Man,one young men only,boat,adults only"
I want to match these words on the table tbl_missingwords.table is as following
ID Keyword Synonym
1 One young men only young men,young adults,adults only
2 One young women only young women,young adults,adults only
3 Domestic cat Domestic animals,pats,animal themes
4 Domestic dog Domestic animals,pats,animal themes
5 Adventure recreation,persuit
6 Boat mode of transport,transport
Then the result should be
ID Keyword Synonym
1 One young men only young men,young adults
6 Boat mode of transport,transport
Please help to select these missing words in SQL.

Answer 1

First create a user-defined function to split the input string.
Function - fn_split
CREATE FUNCTION [dbo].[fn_Split](#text varchar(8000), #delimiter varchar(20) = ' ')
RETURNS #Strings TABLE
(
position int IDENTITY PRIMARY KEY,
value varchar(8000)
)
AS
BEGIN
DECLARE #index int
SET #index = -1
WHILE (LEN(#text) > 0)
BEGIN
SET #index = CHARINDEX(#delimiter , #text)
IF (#index = 0) AND (LEN(#text) > 0)
BEGIN
INSERT INTO #Strings VALUES (#text)
BREAK
END
IF (#index > 1)
BEGIN
INSERT INTO #Strings VALUES (LEFT(#text, #index - 1))
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
ELSE
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
RETURN
END
Then try the following sql query.
Query
declare #str as varchar(max)
set #str='Man,one young men only,boat,adults only'
select ID,min(keyword) as keyword,
case when right(min([Synonym]),1) = ','
then replace(left(min([Synonym]),len(min([Synonym]))-1),',,',',')
else replace(min([Synonym]),',,',',') end as [Synonym]
from
(
select ID,Keyword,value,replace([Synonym],Value,'') as [Synonym]
from fn_split(#str,','),
tbl_missingwords
where Keyword in (select value from fn_split(#str,','))
)t
group by ID;
SQL Fiddle

Answer 2

You've already asked a number of questions regarding this. Redesigning your table structures should now be your priority. Anyway, here is my solution using a splitter and CROSS APPLY:
SQL Fiddle
DECLARE #str VARCHAR(MAX) = 'Man,one young men only,boat,adults only'
DECLARE #tblStr AS TABLE(word VARCHAR(MAX))
INSERT INTO #tblStr
SELECT Item
FROM dbo.SplitStrings_XML(#str, ',')
;WITH CteMissingWords(ID, Keyword, Synonym) AS(
SELECT
w.ID,
w.Keyword,
s.Item
FROM tbl_missingwords w
CROSS APPLY dbo.SplitStrings_XML(w.Synonym, ',') s
)
SELECT
tmw.ID, tmw.Keyword, x.Synonym
FROM tbl_missingwords tmw
CROSS APPLY(
SELECT STUFF((
SELECT ',' + cmw.Synonym
FROM CteMissingWords cmw
WHERE
cmw.ID = tmw.ID
AND cmw.Synonym NOT IN(SELECT word FROM #tblStr)
AND cmw.Keyword IN(SELECT word FROM #tblStr)
FOR XML PATH('')
), 1, 1, '')
)x(Synonym)
WHERE x.Synonym IS NOT NULL
The definition of dbo.SplitStrings_XML is already in one of your previous question.