I need a big oracle database to practise

Question

Hi everyone,
I am currently studying for OCA. For my exercises, I need a table with large number of records, around 500,0000 or more to practice things like performance tuning.
Anyone with an idea where I can get and download these records, in whatever file format, to import into a table.
I don't have time to create these large records myself.
Cheers

Answer 1

If you want a bunch of tables of that sort, then its easy to do that using simple Pl/Sql commands.
create table tab1(a number, b varchar2(10));
begin
for i in 1..500000 loop
insert into tab1 values(i,'a'||i);
end loop;
commit;
end;
Or you can use tables like all_tables or all_source etc...to create your own dummy with their records.. its as simple as that.