Is there a benefit of characterset WE8ISO8859P1 vs WE8ISO8859P15? Differences?

Hello all,
I'm getting ready to clone a database, and I'm on the new server running dbca.
I'm at the characterset section, and on the original database, I see the characterset is WE8ISO8859P1. However, this isn't "found" when the Show Recommended character sets only box is checked. It shows WE8ISO8859P15 only until the box is un-checked.
They both say they are West European.
Is there a real difference between the two? Should I change from the WE8ISO8859P1 to the WE8ISO8859P15 for any good reason? I'm planning to export out of the older database and import into the newer one, will changing the characterset here cause any problems?
So far, I've not been able to find much on the web about the differences between the two, and wondered if anyone here had experience with this.
Thanks in advance,
cayenne

There is a great ML document
Choosing between WE8ISO8859P1, WE8ISO8859P15 or WE8MSWIN1252 as NLS_CHARACTERSET [ID 264294.1]
which in line with what others already suggested, and I agree that you should stick to AL32UTF8 flexible globalization support in your application is important and you want to avoid headaches in the future with export-import to a database when you'll need all of a sudden a new region to support.
8859p1 is binary subset of win1252 (no recoding is needed). So in this case choice is simple.
8859p15 is logical subset of win1252 (the latter has all characters that p15 has, but they may just have different codes).
Bottom line. AL32UTF8 whenever you can. If you got to use one-byte charsets and sacrifice flexibility of Unicode, use we8mswin1252 for western European languages.

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Hi,
I tried to install Oracle Database version 11.2.0.1.0 on windows 7, on time of selecting characterset i don't find WE8ISO8859P1 and it give me only two option which is WE8MSWIN1252 and unicode, since i want to install WE8ISO8859P1 characterset because of using transalationhub.
Thanks in Advance.
Regards
NomanHaq

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STARTED EMCA at Jun 21, 2012 10:22:34 AM
EM Configuration Assistant, Version 11.2.0.0.2 Production
Copyright (c) 2003, 2005, Oracle. All rights reserved.
Enter the following information:
Database SID: orcl
Listener port number: 1521
Listener ORACLE_HOME [ C:\app\Window7\product\11.2.0\dbhome_1 ]:
Password for SYS user:
Password for DBSNMP user:
Password for SYSMAN user:
Email address for notifications (optional):
Outgoing Mail (SMTP) server for notifications (optional):
You have specified the following settings
Database ORACLE_HOME ................ C:\app\Window7\product\11.2.0\dbhome_1
Local hostname ................ 192.168.127.138
Listener ORACLE_HOME ................ C:\app\Window7\product\11.2.0\dbhome_1
Listener port number ................ 1521
Database SID ................ orcl
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That's the conventional wisdom, but let me expand for those taking notes.
A hard drive, pretty much any hard drive (with few exceptions), will provide nearly the same throughput as it does when empty as it begins to fill up with files. But by the time it is around 60% full, the throughput has reduced noticeably from when it was empty, and by the time it is 90% full, the throughput is approximately half of what it was when empty.
So, it you're looking to maintain the best performance, do not fill any of your drives more than 60% full.
But there's more.
As you add and delete files, the OS and the storage sub-system allow files to be saved to some of the inner tracks. That's the throughput killer - the inner tracks. So, the second part of the campaign to keep your storage system at maximum performance is to defragment the drives periodically. Drive fragmentation is different from file fragmentation (OS X does an OK job of constantly defragmenting files.)
You can defrag the drive by copying all the data files to another drive, erasing the first drive, then copying all the files back onto the 1st drive. That's the poor man's defragmenter. And it's faster than most defragger apps.
Now, none of this is necessary under normal computer use, because modern hard drives have plenty of throughput for most uses, even video playback, as they fill up. But if you want the maximum throughput, perhaps for the greatest amount of RT playback without problems, the advice above can help.
FWIW.

When installing SQL Server is there a benefit to overriding the defaults for the Shared Feature Directory?

When installing SQL Server under feature selection you are given the option to change the Shared feature directories. When you choose to change from the default OS drive it seems that the installation
process still installs a large amount of files on the OS drive and then additional files under a similar drive structure on the alternative drive. Is there any real benefit to changing the default location?
Additional is there benefit to changing the default location for the installed features, database engine etc. We are trying to create some clean templates that we can bring up in our production
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I have searched for best practices and this area seems glossed over in most articles, I found a few that indicate later installation of features on a machine that use a non-standard shared component
drive has caused issues. I would like to know there are benefits to taking such actions.
Thanks in advance,
Dirk

Hello,
The best reason I can think about installing SQL Server binaries on another drive different than the system drive is the
fact the page file (pagefile.sys) is located on the system drive by default. The more I/O I can prevent happening on that drive the better for the performance of operating system.
SQL Server still installs some binaries on the system drive anyway, and creating a partition for SQL Server binaries alone
may seem like a waste.
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

I recently downloaded Parallels 9 to my imac so I could install Windows 7 Home Premium and had no trouble everthing is working fine the only question I have is is there a benefit to migrating the 2 together and what happens when I do Thanks. Ricco

I recently downloaded Parallels 9 to my imack so I could install Windows 7 Home Premiumwith no problem and everthing is working fine, and I was thinking of Migrating the 2 2 and was wondering what benefits there would be and what happens when I do.

Windows 7 will peer down through the VM and remember what hardware the VM is installed on. Migrate the VM to different Mac hardware, and on first boot, Windows 7 will advise you that you are not using genuine Microsoft Windows. It will then treat you as though it believes you misappropriated it.

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