SQL count string matches - sql

Question

Please take a look at this simple SQL server database :
I want the result to have 3 column, and the column "CountString" is the total number of string that matches ('this','is', 'count', 'example').
I have managed to detect those words using this query, but it can`t detect multiple words :
SELECT
productid,
NAME,
((CASE
WHEN Concat(' ', NAME, ' ') LIKE '% this %' THEN 1
ELSE 0
END) + (CASE
WHEN Concat(' ', NAME, ' ') LIKE '% is %' THEN 1
ELSE 0
END) + (CASE
WHEN Concat(' ', NAME, ' ') LIKE '% count %' THEN 1
ELSE 0
END) + (CASE
WHEN
Concat(' ', NAME, ' ') LIKE '% example %' THEN 1
ELSE 0
END)) AS CountString
FROM product;
However, if the name for productID 1 is "this is count this example". I want it to be counted as 5. Could you solve this ?

Answer 1

Create Table product(productid int, NAME varchar(100))
Insert Into product Values(1,'this is this example')
Insert Into product Values(2,'this is this this count this example')
SELECT productid,count(*) as CountString
FROM
(
SELECT A.[productid],
Split.a.value('.', 'VARCHAR(100)') AS String
FROM (SELECT [productid],
CAST ('<M>' + REPLACE([NAME], ' ', '</M><M>') + '</M>' AS XML) AS String
FROM product) AS A
CROSS APPLY String.nodes ('/M') AS Split(a)
) As Word
WHERE String in ('this','is','count','example')
Group by productid

Answer 2

Try this
DECLARE #TableString TABLE(ID INT IDENTITY,String nvarchar(max))
INSERT INTO #TableString(String)
SELECT 'this is count this example' UNION ALL
SELECT 'Bearing Ball' UNION ALL
SELECT 'BB Ball Bearing ' UNION ALL
SELECT 'this is example'
-- Here the delimeter is space
SELECT id AS productid, COUNT(stringValue) AS StringValueCount FROM
(
SELECT id ,
Split.a.value('.', 'VARCHAR(1000)') AS stringValue
FROM (
SELECT id,CAST('<S>' + REPLACE(String, ' ', '</S><S>') + '</S>' AS XML) AS String
FROM #TableString
) AS A
CROSS APPLY String.nodes('/S') AS Split(a)
)Dt
WHERE dt.stringValue in ('this','is','count','example')
GROUP BY id
Result
productid StringValueCount
-----------------------------
1 5
4 3