Count how many times a word exist in column - sql-server

Question

I have a table 1:
CREATE TABLE table1
INSERT INTO table1 values('XYZ')
INSERT INTO table1 values('ABC')
INSERT INTO table1 values('XYZ~ABC~AAA')
INSERT INTO table1 values('123')
Then, I have string 'ABC~XYZ~123'. I need to split this string into each word by using SQL:
Select VALUE FROM STRING_SPLIT('ABC~XYZ~123','~')
The return is table2
ABC
XYZ
123
I want to count how many times each word in table2 existed in table 1
The expected output is
ABC|3
XYZ|2
123|1
Any ideas on this?

Answer 1

If I understand your case correctly, the next statement may help:
Text and table:
DECLARE #text varchar(100) = 'ABC~XYZ~123'
CREATE TABLE Data (
Id int,
[Text] varchar(100)
)
INSERT INTO Data
(Id, [Text])
VALUES
(1, 'XYZ'),
(2, 'ABC'),
(3, 'XYZ~ABC~AAA'),
(4, '123~ABC')
Statement:
SELECT t.[value] AS [Word], j.[Count]
FROM STRING_SPLIT(#text, '~') t
LEFT JOIN (
SELECT s.[value], COUNT(*) AS [Count]
FROM Data d
CROSS APPLY STRING_SPLIT(d.[Text], '~') s
GROUP BY s.[value]
) j ON t.[value] = j.[value]
Result:
-----------
Word Count
-----------
ABC 3
XYZ 2
123 1

Answer 2

Apart from the suggestions as in comment you can use Count() function as below. But storing in this format will give you difficulty for the extraction as well as in join with the other tables.
Select T1Value, Count(*) as [NoCount] from(
Select table1.Value as T1Value, Value FROM STRING_SPLIT('ABC~XYZ~123','~')
inner join table1 on Value = table1.Value
)a group by T1Value
Edit
CREATE TABLE table1(
TableValue varchar(max)
);
INSERT INTO table1 (TableValue) values ( 'XYZ');
INSERT INTO table1 ( TableValue) values ( 'ABC');
INSERT INTO table1 ( TableValue) values ( 'XYZ~ABC~AAA');
INSERT INTO table1 ( TableValue) values ( '123~ABC');
SELECT b.value
,Count(*)
FROM (
SELECT VALUE
FROM STRING_SPLIT('ABC~XYZ~123', '~')
) a
INNER JOIN (
SELECT *
FROM table1
CROSS APPLY STRING_SPLIT(TableValue, '~')
) b ON a.Value = b.Value
GROUP BY b.Value
Here is the given Live Demo on db <> fiddle

Answer 3

Setup
create table STRINGS (ID int, STRINGS varchar(max));
insert into STRINGS (ID, STRINGS) values (1, 'XYZ');
insert into STRINGS (ID, STRINGS) values (1, 'ABC');
insert into STRINGS (ID, STRINGS) values (1, 'XYZ~ABC~AAA');
insert into STRINGS (ID, STRINGS) values (1, '123~ABC');
declare #VALUES varchar(max) = 'XYZ~ABC~123';
Calculation :
select V1.VALUE, count(STRINGS.ID)
from string_split(#VALUES,'~') V1
cross join STRINGS
outer apply string_split(STRINGS.STRINGS,'~') V2
where V2.VALUE = V1.VALUE
group by V1.VALUE
Result
-----------
Value Num
-----------
ABC 3
XYZ 2
123 1
Live exemple :
https://dbfiddle.uk/?rdbms=sqlserver_2017&fiddle=15b95efcf69ea98fafbb7dda1c624551