Increasing Load On The Database Server

Increasing Load On The Database Server

Creating a table:

create table t (id number, sometext varchar2(50),my_date date) tablespace test;

Now we will create a simple procedure to load bulk data:

create or replace procedure manyinserts as

v_m number;

begin

for i in 1..10000000 loop

select round(dbms_random.value() * 44444444444) + 1 into v_m from dual ;

insert /*+ new2 */ into t values (v_m, 'DOES THIS'||dbms_random.value(),sysdate);

commit;

end loop;

end;

/

Now this insert will be executed in 10 parallel sessions using dbms_job, this will fictitiously increase load on database:

create or replace procedure manysessions as

v_jobno number:=0;

begin

FOR i in 1..10 LOOP

dbms_job.submit(v_jobno,'manyinserts;', sysdate);

END LOOP;

commit;

end;

/

Now we will execute manysessions which will increase 10 parallel sessions:

exec manysessions;

Check the table size:

select bytes/1024/1024/1024  from dba_segments where segment_name='T';