HOW TO UPGRADE FROM 8.1.7.0.0. TO 8.1.7.4.0 IN NT

HOW TO UPGRADE FROM 8.1.7.0.0. TO 8.1.7.4.0 IN NT

 

  

Hi all,
please let me know how to upgrade oracle 8.1.7.0.0. TO 8.1.7.4.0 in NT.What is the patch no I need to apply and how ?
Regards.
Joydeep.

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