Mysql How to SELECT information based other tables - mysql

Question

I would like to get tokens. E.g if i would like to SELECT Gregor, Liza and if we look into committee it should retrive then their own tokens and also Matt, Bob tokens
Table structure:
CREATE TABLE users(
id INT PRIMARY KEY AUTO_INCREMENT,
name VARCHAR(255)
);
INSERT INTO users (name)
VALUES ("Gregor"),
("Liza"),
("Matt"),
("Bob"),
("Tom");
CREATE TABLE committee(
user_id INT,
friend_id INT,
member_id INT,
PRIMARY KEY (`user_id`, `friend_id`, `member_id`),
FOREIGN KEY (`user_id`) REFERENCES `users` (`id`),
FOREIGN KEY (`friend_id`) REFERENCES `users` (`id`),
FOREIGN KEY (`member_id`) REFERENCES `users` (`id`)
);
INSERT INTO committee (user_id, friend_id, member_id)
VALUES (1, 2, 3),
(1, 2, 4);
CREATE TABLE tokens(
user_id INT,
token VARCHAR(255)
);
INSERT INTO tokens (user_id, token)
VALUES (1, "lclasld2"),
(2, "xxkakdasd"),
(3, "123kdkfs"),
(4, "hjj32"),
(5, "zz3dja");
Current query i got:
SELECT token FROM tokens WHERE user_id IN (1, 2);
How it behave now:
user_id, token
1, lclasld2
2, xxkakdasd
What i expect, when i run the query:
user_id, token
1, lclasld2
2, xxkakdasd
3, 123kdkfs
4, hjj32

Answer 1

I think it's enough to use the query without where clause
SELECT * FROM tokens

Answer 2

Your database design could be better or the schema values that you have used for demo arent correct.
You can try this
SELECT token
FROM tokens
WHERE user_id IN (SELECT member_id
FROM committee
WHERE user_id IN ( 1, 2 ))
OR user_id IN ( 1, 2 );