Starting at 20:00. It took 15 seconds for the welcome screen to appear. When i saw the description of Advanced Installation -- "Allows ... different passwords for, database character set etc.", i understood that it probably means that the DBCA will be run and opted for the default "Basic Installation".
I named the starter database "orcl10g-starter" so i won't be confused the next time i see "orcl". However, after 15 seconds the installer said that the database name can contain only alphanumeric characters and the underscore and went back to the welcome screen, where i renamed it "orcl_starter". Then after 10 more seconds the installer told that the SID can be no more than 8 chars long, which was an even more annoying turn. It also warned me about an already existing directory -- but it created the directory itself! Now talk about transactions.
Let's start again, it's 20:15 now. And just for the kicks i opted for Advanced installation. Now the installer wants to name my Oracle home db_3, because it detects that i am running it for the third time on my computer. The question is -- how? Will the registry tell? After ten minutes of searching the registry i gave up -- there are way too much Oracle-related keys and i don't want to touch it. So i started reading the "Universal Installer Concepts Guide". Apparently there's even a Deinstalling section there -- i should have thought about that, when i thought about uninstalling -- but it doesn't tell anything interesting about a complete cleanup. There is, however, a chapter about Oracle Homes, which i should better read, because this concept seems to be quite important. So i'll leave the installation for now, and study well about these concepts to become a better DBA someday.
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