Re: Tablespace information from export file (NT)

Just a small addendum to add my thoughts..

As suggested by Charles the import can very well create the tablesapces and the datafiles.

Small caveats:-
1. This should work fine if the directories in which the datafiles reside are present. Otherwise the tablespace creation may result in an error and subsequent export will run into errors.

2. If the operating system of the source database has a different

   file and naming conventions than destination database then the    directory and filenames will not be valid, and so during import    process the tablespace creation may fail.

   For example suppose source database is on UNIX and the destination    database is Windows NT then the directory and file naming changes.    So a valid filename "/usr/oracle/datafile01.dbf" in Unix when    used during import on NT will give an error as the filename    is not a valid filename.

   I guess you got the idea..

3. If you are creating the database on the same machine on which

   the source database exists and you want to create a brand new    database on the same database server machine and want to keep    the source also, then we should have different filenames than    source database as source and destination databases should have    different filename on the same box.

I just wanted to add my comments to the discussion to assist you further.

Whatever Charles has mentioned is fine, but you should also consider your situation.

hope this helps,

Manoj Jain
Oracle Certified Professional OCP DBA Oracle7 & Oracle8

Email: m_jain_at_go.com

In article <7f33si$7v9_at_sjx-ixn10.ix.netcom.com>,   "Charles Wolfe" <cwolfe_at_ix.netcom.com> wrote:
> Actually, import is quite capable of creating tablespaces. Please refer to
> the attached excerpt:
>
> hth
>
> Regards,
> Chuck
>
> Connected to: Oracle8 Personal Edition Release 8.0.4.0.0 - Production
> PL/SQL Release 8.0.4.0.0 - Production
>
> Export file created by EXPORT:V08.00.04 via conventional path
> .. importing SYSTEM's objects into SYSTEM
> "ALTER SCHEMA = "SYSTEM""
> "CREATE TABLESPACE "USER_DATA" DATAFILE
> 'C:\ORAWIN95\DATABASE\USR1ORCL.ORA'"
> " SIZE 3145728 DEFAULT STORAGE (INITIAL 10240 NEXT 10240 MINEXTENTS 1
> "
> "MAXEXTENTS 121 PCTINCREASE 50) ONLINE PERMANENT"
> "CREATE TABLESPACE "ROLLBACK_DATA" DATAFILE
> 'C:\ORAWIN95\DATABASE\RBS1ORCL."
> "ORA' SIZE 5242880 DEFAULT STORAGE (INITIAL 10240 NEXT 10240
> MINEXTENT"
> "S 1 MAXEXTENTS 121 PCTINCREASE 50) ONLINE PERMANENT"
> "CREATE TABLESPACE "TEMPORARY_DATA" DATAFILE
> 'C:\ORAWIN95\DATABASE\TMP1ORCL"
> ".ORA' SIZE 2097152 DEFAULT STORAGE (INITIAL 10240 NEXT 10240
> MINEXTEN"
> "TS 1 MAXEXTENTS 121 PCTINCREASE 50) ONLINE PERMANENT"
>
> Kenny Gump <kgump_at_mylanlabs.com> wrote in message
> news:3714ff1f.0_at_news.mountain.net...
> > The import will create users but will not create the Tablespaces.
> >
> > To see exactly what the import will do, execute the following statement,
> it
> > will not import the file, but will show you what would happen if you did:
> >
> > imp user/password_at_TNSName myfile.dat show=Y log=mylogfile.txt
> >
> > This will output mylogfile.txt with all the create commands and sizing
> > information for each of the segments to be created.
> >
> > Kenny Gump
> >
> >
> > Andy Hardy wrote in message ...
> > >Is there any way of getting the tablespace details from an export file
> > >as I'd like to know how big the tablespaces should be when I create my
> > >new database.
> > >
> > >In fact, I almost expected an import to attempt to create the
> > >tablespaces and users from an export file as required?
> > >
> > >Andy
> > >--
> > >Andy Hardy. PGP key available on request
> > >===============================================================
> >
> >
>
>

-----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own Received on Wed Apr 14 1999 - 19:02:21 CDT