Scheduled job creation in oracle

There are two types of jobs available in oracle to schedule a job namely dbms_job.submit and DBMS_SCHEDULER.CREATE_JOB, the later being more powerful and havimg better advantages compared among them.

Oracle provides the following two ways to create jobs:

1) dbms_job.submit

DBMS_JOB.SUBMIT(
   job       OUT    BINARY_INTEGER,
   what       IN     VARCHAR2, NEXT_DATE IN DATE DEFAULTSYSDATE,
   interval  IN     VARCHAR2 DEFAULT 'NULL',
   no_parse  IN     BOOLEAN DEFAULT FALSE,
   instance  IN     BINARY_INTEGER DEFAULT ANY_INSTANCE,
   force     IN     BOOLEAN DEFAULT FALSE);

2) DBMS_SCHEDULER.CREATE_JOB

DBMS_SCHEDULER.CREATE_JOB (
   job_name                 IN VARCHAR2,
   program_name             IN VARCHAR2,
   start_date               IN TIMESTAMP WITH TIME ZONE,
   event_condition         IN VARCHAR2,
   queue_spec               IN VARCHAR2,
   end_date                 IN TIMESTAMP WITH TIME ZONE,
   job_class               IN VARCHAR2          DEFAULT 'DEFAULT_JOB_CLASS',
   enabled                 IN BOOLEAN           DEFAULT FALSE,
   auto_drop               IN BOOLEAN           DEFAULT TRUE,
   comments                 IN VARCHAR2          DEFAULT NULL);