Steps to apply adpatch on EBS R12

How to apply patch on EBS R12.

Patching in oracle apps is very simple. We have to put application in maintains mode . This step is important .   

So for this we have Eight steps:---

1. Stop application tier.



2. Turn the maintains mode enable e.g.
            i. run adadmin (for this you have to run apps env)
           ii. go for 5 and after that go for 2 (1 for disable),   that will run "adsetmmd.sql" from 
                $AD_TOP/patch/115/sql
     

3.Copy the patch to oracle user folder

4. UNZIP the patch and change directory to patch number.

5. Set the PATH for home,bin.

6.  Run "adpatch"  and go with default value and give "system" and "apps" password

7. It will prompt for drive than give the patch drive name e.g. u"patch_no".drv



8. After applying the patch turn maintenance mode disable by going through 2nd step.  

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