Lock row in 1 table while update other tables

Question

Gurus,
I want to read 1 table. If the date is less than today, I want to update 4 other tables. I only want to do this update once a day.
While the 4 other tables are being updated, I want the other web users to pause for the update while this procedure runs.
Is there a better way to do this?
TIA
Steve42
Here is what I have:
CREATE OR REPLACE PROCEDURE TEST_TODAY2 AS
-- to create the table
-- create table test_today(updated_date date);
-- insert into test_today(updated_date) values (sysdate-1);
-- select * from test_today;
    cursor daily_update_cur is
    select updated_date from test_today
      for update of updated_date;
   last_updated_date date;
BEGIN
  NULL;
    open daily_update_cur;
    fetch daily_update_cur into last_updated_date;
    IF  trunc(last_updated_date) < trunc(sysdate) THEN
       -- update 4 other tables
       -- After those are updated,  update test_today
       dbms_output.put_line('After updating tables');
       update test_today set updated_date=sysdate;
    ELSE
       dbms_output.put_line('Tables already up to date');
       null;
    END IF;
    execute immediate 'commit';
    close daily_update_cur;
END TEST_TODAY2;Edited by: BluShadow on 15-Oct-2012 14:22
Please use {noformat}{noformat} tags before and after your code as described in the FAQ: {message:id=9360002}.
I've corrected it this time for you.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

Steve,
I just checked your requirements and program. It seems fine.
You can modify something on this. As below part is not required as it ll never happen.. :)
    ELSE
       dbms_output.put_line('Tables already up to date');
       null;
    END IF;
/* execute immediate 'commit';  -- No need to write in dynamic sql as its not a DDL statement */
commit;Sorry for going out of topic.
Since I'm a NEWBIE, I just wanted to make sure that this would work before
we roll this out to LIVE PRODUCTION.Newbie is defined on the basis of the date you joined/registered. It never asked for your experience or a screening while signing up.
Better you can have an other idea to filter out people by their replies/sense with quality/weight of statements as newbies or experts ! .. :)
Thanks!