MySQL 8.0

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create table users (
  id int
);
create table users_address (
  token varchar(30)
);
SELECT LEFT(MD5(RAND()), 20); 


LEFT(MD5(RAND()), 20)


dad2de91b40625d2acb2


CREATE TRIGGER my_trigger
    AFTER INSERT
    ON users FOR EACH ROW
BEGIN
    INSERT INTO users_address (token) VALUES (LEFT(MD5(RAND()), 20));
END   
INSERT INTO users (id) VALUES (1);
select *
from users_address;


token


130b95c77ed5f063d8dc