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CREATE TABLE user_action ( user_id int, action_id int, timestamp timestamp ); INSERT INTO user_action VALUES (1,1,'2022/05/07 17:23'); INSERT INTO user_action VALUES (1,2,'2022/05/07 17:24'); INSERT INTO user_action VALUES (1,1,'2022/05/07 17:25'); INSERT INTO user_action VALUES (2,1,'2022/05/07 17:23'); INSERT INTO user_action VALUES (2,2,'2022/05/07 17:24'); INSERT INTO user_action VALUES (3,2,'2022/05/07 17:23'); INSERT INTO user_action VALUES (3,1,'2022/05/07 17:24'); CREATE TABLE action ( id int, name varchar(20) ); INSERT INTO action VALUES (1,'Blocked'); INSERT INTO action VALUES (2,'Unblocked');
SELECT u.user_id,u.action_id,u.timestamp FROM user_action u INNER JOIN ( SELECT ua.user_id, MAX(ua.timestamp) as ts FROM user_action ua GROUP BY ua.user_id )as t ON u.user_id = t.user_id AND u.timestamp = t.ts WHERE action_id = 1;
user_id
action_id
timestamp
1
1
2022-05-07 17:25:00
3
1
2022-05-07 17:24:00