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Re: Issues with converting update command to trigger
Posted by: Peter Brawley
Date: July 03, 2020 07:17AM

create table telemetry_log(id int,device_id int,device_desc varchar(32) );

create table id_name_device(device_id int,device_desc varchar(32) );

CREATE TRIGGER add_desc BEFORE insert on telemetry_log FOR EACH ROW
set new.device_desc = ( select device_desc from id_name_device where device_id=new.device_id );

Works in MySQL 5.7 and 8.0.

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