SQL> Execute dbms_job.remove(xx); -- if you used dbms_job to submit them
SQL> 
begin
dbms_scheduler.drop_job(
job_name=>'JOB_NAME',
force=>true);
end;
/
begin
dbms_scheduler.drop_schedule(
schedule_name=>'SCHEDULE_NAME',
force=>true);
end;
/
begin
dbms_scheduler.drop_program(
program_name=>'PROGRAM_NAME',
force=>true);
end;
/
-- If you used dbms_scheduler

dba_jobs

dba_scheduler_job_run_details
DBA_SCHEDULER_JOBS
DBA_SCHEDULER_RUNNING_JOBS
DBA_SCHEDULER_JOB_LOG
DBA_SCHEDULER_JOBS