MySQL触发器，用于更新特定的记录列值

Question

I have been tried mysql trigger to set a field to value 1, if there is any update action happened in any column of the record.

I am newbie in trigger, so help me to set a value to 1, if updated record

Thanks

Answer 1

CREATE TRIGGER t_name AFTER INSERT ON table_name

SET @attribute_name = 1;

Answer 2

This looks like a classic usecase for a before update trigger:

delimiter //
CREATE TRIGGER mytable_upd_trg 
BEFORE UPDATE ON mytable
FOR EACH ROW
BEGIN
    SET NEW.special_field = 1;
END;//
delimiter ;