在插入触发器后如何编写触发器以根据第一个表的值将数据插入到另一个表中

Question

I want to create a trigger after insert on one table which would insert values into another table based upon the values of the first table.Here is what i have done and its not working.

CREATE TRIGGER add_into_alerts
AFTER INSERT ON in_sims_responses
FOR EACH ROW 
IF new.sim_response_code='102'
THEN
INSERT INTO bf_alters(company_id,description,event_datetime)
VALUES (NEW.sim_company_id,CONCAT(new.sim_msisdn,'Not Subscribed'),NOW());
END IF

Answer 1

For multiple-statements triggers you need to wrap your statements between BEGIN and END . But you can avoid that by making it a single-statement trigger. In your case you can use a conditional insert:

INSERT INTO bf_alters(company_id,description,event_datetime)
    SELECT NEW.sim_company_id, CONCAT(new.sim_msisdn,'Not Subscribed'),NOW()
    FROM dual
    WHERE new.sim_response_code='102';