RDBMS vs database

I'm installing and patching up a 10.2 database, 32bit on Windows 2008. I've installed 10.2.0.3, applied patch 8202632 to take it to 10.2.0.5.  

Now, I'm trying to verify what patches are out there for 10.2.0.5. I did a search of on MOS for 10.2.0.5 Database and found only one bundle, #1099855. I shot a quick SR to Oracle ( to confirm the patch could be applied in a non-AMD environ) and they said it was the correct patch. AND, once I got it to 10.2.0.5, here are 8 other patches.  

I looked at those patches and most have to do with RDBMS Server or Warehouse Builder.  

So, what is the difference in RDBS Server and Enterprise Server for the DB?  

I'm thinking since I'm only installing Enterprise server, then my patch search should just concentrate on the database software, and nothing else?  

THanks

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