Help with listing records from two tables

Question

Hi: I have two tables joined by the first field. The field is primary key in first table. Need help listing records from both tables with each record one line/record.
create table EVENTS (
event_key varchar2(64) primary key,
event_description varchar2(64),
create_time int
create table EVENT_UPDATES (
event_key varchar2(64) NOT NULL ,
update_description varchar2(64),
update_time int
insert into EVENTS values('Event1', 'This is event1', 1);
insert into EVENT_UPDATES values('Event1', 'Ticket created', 3);
insert into EVENT_UPDATES values('Event1', 'Event cleared', 10);
insert into EVENTS values('Event2', 'This is event2', 4);
insert into EVENT_UPDATES values('Event2', 'Ticket created', 6);
insert into EVENT_UPDATES values('Event2', 'Event cleared', 8);I want to print each record in EVENTS table as one line and corresponding records in EVENT_UPDATES as one line/record like this
Event1   1     This is event1
            3     Ticket created
            10   Event cleared
Event2   4     This is event2
            6     Ticket created
            8     Event clearedTIA
Ravi

Answer 1

select  case weight
          when 1 then event_key
        end key,
        time_val,
        description
  from  (
          select  event_key,
                  create_time time_val,
                  event_description description,
                  1 weight
            from  events
         union all
          select  event_key,
                  update_time,
                  update_description,
                  2 weight
            from  event_updates
  order by event_key,
           weight
KEY          TIME_VAL DESCRIPTION
Event1              1 This is event1
                    3 Ticket created
                   10 Event cleared
Event2              4 This is event2
                    6 Ticket created
                    8 Event cleared
6 rows selected.
SQL> SY.