SET FOREIGN_KEY_CHECKS = 0; ALTER TABLE investigacion.old DROP FOREIGN KEY fk_divisiones_direcciones1; ALTER TABLE investigacion.cat_cai_pasos DROP COLUMN division_id; SET FOREIGN_KEY_CHECKS = 1;

SET FOREIGN_KEY_CHECKS = 0; ALTER TABLE investigacion.roles_usuarios DROP FOREIGN KEY fk_roles_usuarios_cat_roles1; SET FOREIGN_KEY_CHECKS = 1;