如何选择多个喜欢和其他条件的mysql

Question

Good day, I am a newbie programmer. I would like to ask what is the problem with my code? All I want sir/ma'am to view the user with letter "a" in firstname,middlename and lastname and status is equal to 1 and usertype is not equal to the word "Admin".

The code below showing other user record, even the usertype is Admin. Please help me sir.

This is my code:

SELECT * FROM users WHERE usertype != 'Admin' AND firstname LIKE '%a%' OR middlename LIKE '%a%' OR lastname LIKE '%a%' AND userstatus = '1' 

Please help me. I see some post here that using multiple like, Sorry if my english is too bad. Thanks in adavance

Answer 1

I assume you want to group your LIKE statements. You can use brackets for that, like so:

SELECT * FROM users 
WHERE usertype != 'Admin' 
AND (
    firstname LIKE '%a%' 
    OR middlename LIKE '%a%' 
    OR lastname LIKE '%a%'
)
AND userstatus = '1' 

Or put them the way you want. However I would recommend you to prevent statements like this, because the can become very ill performing, especially when the wildcharacters are on both sides. But I assume that is just as an example here.

EDIT : See here for fiddle.

Answer 2

SELECT * FROM users WHERE usertype != 'Admin' AND (firstname LIKE '%a%' OR middlename LIKE '%a%' OR lastname LIKE '%a%') AND userstatus = '1'