Manejo de triggers parte I:
manejo de triggers parte II:
https://remingtonedu-my.sharepoint.com/:f:/g/personal/jhonnier_palomeque_6489_miremington_edu_co/Es1MeG4yKWJFlgwUdethF_IB7jB-WIaVZNxhj_rEzvwNGQ?e=Umy08A
