Match a set of characters from one table into the records of an other table - sql

Question

I have two tables (T-SQL):
tblInvalidCharactersList tblMonthsRecords
+-----------+-----------+ +--------+-------------+
| CodePoint | Character | | RecRef | Name |
+-----------+-----------+ +--------+-------------+
| 38 | & | | 21 | Firs> name |
+-----------+-----------+ +--------+-------------+
| 64 | # | | 89 | #Second name|
+-----------+-----------+ +--------+-------------+
| 62 | > | | 321 | Third n«me |
+-----------+-----------+ +--------+-------------+
| 171 | « | | 381 | Fourth name |
+-----------+-----------+ +--------+-------------+
I want to find those records of the tblMonthsRecords which have at least one (or more) character(s) from the Character column of the tblInvalidCharactersList table.
I tried:
SELECT
[RecRef],
[Name]
FROM [tblMonthsRecords]
WHERE [Name] IN (SELECT Character FROM [tblInvalidCharactersList])
and it returns no results at all.
I even tried the NOT IN clause and as you may guess, returns all records.
The reason why I am not hardcoding the characters list within a LIKE clause is because I want the list to be dynamically updated.
You can think the tblInvalidCharactersList as a characters "black list".

Answer 1

I would use exists:
select mr.*
from tblMonthsRecords mr
where exists (select 1
from tblInvalidCharactersList icl
where charindex(icl.Character, mr.name) > 0
);
You don't seem to care about the actual invalid character.

Answer 2

IN will look for exact character match in Name column it will not search for the character in Name column
Use LIKE operator
select Distinct a.*
from tblMonthsRecords a
join tblInvalidCharactersList b
on a.Name like '%' + b.Character + '%'
Another way using charindex
charindex(b.Character,a.Name) > 0