sql 'is not' ( <> ) is not working

Question

I have no idea what I do wrong... this is my code:

SELECT *
FROM messages
WHERE userId = \"6\"
OR toUserId = \"6\"
OR toAll = \"1\"
AND id <> \"4\"
ORDER          


        

Answer 1

You need to use parenthesis to indicate operator precedence:

WHERE (
       userId   = "6"
    OR toUserId = "6"
    OR toAll    = "1"
)
AND id <> "4"