Daily job to populate table in another database

Hi Gurus,  

If you need to copy data (after some manipulations) from database A to another table in database B, how do you achieve that ? Our current practice is to use crontab (schedule daily job) and sqlplus
(procedure to copy the data over to another database via dblink).
 

Do you think it's more efficient to use DBMS_JOB ? Can DBMS_JOB call the procedure at the same time daily ? Any sample? Please advise. Thanks.  

Regds,
new bee

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