Oracle 11g Release 2

By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
CREATE TABLE USER_EVENTS ( ID, EVENT_TYPE, EVENT_DATE, USER_ID ) AS
SELECT 1, 'USER_DELETED',    DATE '2019-01-10', 5301 FROM DUAL UNION ALL
SELECT 2, 'USER_ACTIVATED',  DATE '2019-01-09', 5301 FROM DUAL UNION ALL
SELECT 3, 'USER_DELETED',    DATE '2019-01-05', 5302 FROM DUAL UNION ALL
SELECT 4, 'USER_ACTIVATED',  DATE '2019-01-11', 5302 FROM DUAL UNION ALL
SELECT 5, 'USER_DELETED',    DATE '2019-01-01', 5288 FROM DUAL UNION ALL
SELECT 6, 'USER_DELETED',    DATE '2019-01-02', 5287 FROM DUAL UNION ALL
SELECT 7, 'USER_CREATED',    DATE '2018-12-01', 5211 FROM DUAL UNION ALL
SELECT 8, 'USER_NOTE',       DATE '2018-12-01', 5211 FROM DUAL;
8 rows affected

SELECT *
FROM   (
  SELECT u.*,
         COUNT( CASE event_type WHEN 'USER_ACTIVATED' THEN 1 END )
           OVER (
             PARTITION BY user_id
             ORDER BY event_date
             ROWS BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING
           ) AS num_activated
  FROM   USER_EVENTS u
)
WHERE  num_activated > 0
AND    event_type = 'USER_DELETED';


ID
EVENT_TYPE
EVENT_DATE
USER_ID
NUM_ACTIVATED


3
USER_DELETED
05-JAN-19
5302
1


SELECT USER_ID
FROM   USER_EVENTS
GROUP BY USER_ID
HAVING MIN( CASE EVENT_TYPE WHEN 'USER_DELETED' THEN EVENT_DATE END ) < MIN( CASE EVENT_TYPE WHEN 'USER_ACTIVATED' THEN EVENT_DATE END )


USER_ID


5302