Oracle Database Discussions

Hi,

I am a computer student and I have a test coming on DBMS. So to practice at home, I asked around and was told to download the following Oracle s/w from the Oracle site :

Oracle Database 10g Release 2 (10.2.0.3/10.2.0.4) Enterprise/Standard Edition for Microsoft Windows Vista and Windows 2008.

I have downloaded this into a folder named as "Oracle" in my Desktop. When the download was complete, I found a sub-folder named
"10203_vista_w2k8_x86_production_db.zip" had been created and this folder size shows 63 MB and the folder type shows as "Compressed (zipped) folder".

When I right click on the folder and the click on the "Extract All..." command, I get the a box with the following message :

"Cannot Complete the Compressed (zipped) Folders Extraction Wizard. The Compressed (zipped) folder is empty. Before you can extract files, you must copy
files to this compressed (zipped) folder".

I simply cannot understand this message. How can Windows say the folder is empty when Windows Explorer clearly shows the folder is occupying 63 MB of space ?

My OS is Windows Vista Home Basic with 3 GB of RAM and about 500 GB of Disk space and I regularly update my Windows s/w from the Microsoft site.

I checked in this forum and found that Oracle downloads are not supported by Home editions of Vista. Is that true ? If true, it seems to be strange, considering
that most Home users would have Vista Home Basic installed.

Any help would be welcome. Also, my requirements are pretty basic and un-ambitious. I just want a DBMS s/w to practice basic DBMS skills at home e.g to create
tables, modify them, practice how to make certain fields primary key, canditate key, composite key etc., practice commit, rollback and other simple commands like setting constraints etc.


Thank you,
shiv