Move Databse 10g R2 from Old Machine to New Machine .

Hello Every body
We have a new Server (Windows server 2003 OS)
So My Manager asked me to Move Our Oracle Databse 10g release 2 from an Old Sever to The New one , i Will also install Oracle Databse 10g release 2 on the New server , Everything will be same like the Old one ..
My Question is , What is the easiest way to Do that ... ? , And i will be appreciate if you Give me instruction as steps , Like 1 , 2 , 3 ...
i was thinking to Install the New Database at the New server , and Copy All Oradata folder From Old Server Database to the New One ... is that right ? Or ... ?!!
Thank you Alll
Alaa

Alaa Al-allan wrote:
thank you again for replay Aman....      
No unfortunately , no one around me , am new at DBA , and the old DBA has left 2 months ago ...am alone now , :(
ooh man , i was thinking its easy task , but i can feel from your voice that its a complicated task , is it ??!!
thanks again
AlaaIt's not all that complicated, but your old DBA left you with a mess and it may take a while to clean up.
First of all, you should not be running any kind of production (and many kinds of "non-production") database in noarchivelog mode, unless you really, really know what you are doing. It is prima-facie evidence that someone does not know what they are doing. So there will be issues of space and configuration that are what we nicely call "deferred maintenance" but more accurately naming would be censored by this board.
Second, mulitiple databases on a Windows box is usually a mistake. But that may or may not be true, as people from the MS world often have a different definition of "database," what Oracle calls a schema. So you need to let us know if there are multiple databases from the Oracle viewpoint - multiple alert logs, services and so forth.
Third, not having archives means your backup is done wrong. You will need to fix that!
You are fortunate in that you are moving to a new box, so hopefully the 4 days you mentioned means a window of opportunity at an arbitrary time in the future, not just 4 days from yesterday. This lets you try it several ways. 30G isn't all that big. Personally, I favor exp/imp, because that fixes some old problems that may be floating about, such as tablespace conversions that didn't really convert from DMT to LMT. It has it's own issues, such as the possibility of wasting some space and various well-known idiosyncracies that newbies inevitably trip over, but it also means the db is starting fresh and clean.
So this is what I do when given the opportunity:
Create a new db on the new machine, you can use the database creation assistant. There will be a parameter file, find the one on the old machine (you may want to google "create pfile from spfile") and compare to the new one, you may want to make some adjustments. If there are any parameters that start with one underscore, you want to ask about those. You don't want to just blindly use the same parameters.
Come up with scripts to exp each schema on the old machine.
Evaluate the metadata of tablespaces and objects that will be coming over. Exactly how depends on how many - some systems have tens of thousands, but only use thousands - but note there is an option to get imp to put the metadata into text files you can edit, and there are programmatic ways to get them from the original db.
Pre-create the tablespaces and tables in the new system.
Imp the data.
Make several test runs, fixing issues as I find them. In some cases I use the create table as select syntax over a network instead of importing the data. Once you have the db created, you can drop schema to clean them up if you've made scripts to recreate the metadata.
Test your app, this may point up some things missed that are outside schemata, and missing grants and synonyms.
Now, I've been doing this for a long time, so I use the old exp/imp, but as a newbie you may want to use the new one (impdp). Note there are ways to use the network so you don't have to copy export files, and various ways to compress, which can speed up moving things around. Since I usually am in a fog of much more work upgrading apps, I may have missed some steps. but hopefully this gives you a starting point.
You may want to get a consultant in who is familiar with your app and doing this kind of migration, if there is any kind of pressure.

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