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CREACIÓN DE TRIGGERS EN ORACLE 12C CON ESQUEMA HR TABLA AUDITORIA CON REGIONS --CREAR TABLA AUDITORIA create table audita_insert_regions( region_id number, region_name varchar2(25), user_insert varchar2(25), fecha_insert date, hora_insert varchar2(12), servidor varchar2(15), ip varchar2(25) ); --CREAR EL TRIGGER create or replace trigger tr_insert_regions after insert on hr.regions for each row declare   v_usu varchar2(25);   v_fecha date;   v_hora varchar(12);   v_serv varchar2(15);   v_ip varchar2(25); begin   select user into v_usu from dual;   select sysdate into v_fecha from dual;   select to_char(sysdate, 'HH12:MI:SS') into v_hora from dual;   select SYS_CONTEXT('USERENV', 'HOST')into v_serv from dual;   select SYS_CONTEXT('USERENV', 'IP_ADDRESS')into v_ip from dual;   insert into audita_insert_regions   values(:new.region_id, :new.region_name, v_usu, v_fecha, v_hora, v_serv, v_ip); end; ...