Question

SELECT * FROM
companies as C
LEFT JOIN usersSearchCache as UC ON C.id = UC.objectId
WHERE UC.userId = ? AND C.keywords LIKE ?

So basically I have an table: usersSearchCache, that has an objectId, the objectId
is linked to the id of the companies table, I need to search where the keywords of the company are matching in the cache of the user.

The query above isn’t working but I don’t understand why.

Answer 1

We got users in a user table, all those users can visit pages of objects, when they visit these pages, a new records is created in the table userSearchCache.

select * FROM userSearchCache UC
where UC.userId = ?

returns something like

userId,objectId
1,123
1,345

Now what I got is a search field, where the users inserts the name of the object they want to search, so the current query is:

JOIN companies C ON UC.object_id=C.id

userId,objectId,keywords
1,123,"yoga,savate,pilates"
1,345,"tennis,biking,soccer"

to find “biking”, I would use LIKE ‘%BIKING%’

select * 
FROM userSearchCache UC
JOIN companies C ON UC.object_id=C.id
where UC.userId = ? AND c.keywords LIKE '%'+?+'%'

Does your keyword parameter already contain the wildcard characters ‘%’