yes it prevents users writing to the datafile... but it leaves your
database in a precarious state if you have to do recovery.. or if you
do a shutdown and try to open the database normal.
- "Sherman, Paul R." <PSherman_at_elcom.com> wrote:
> Hello Jared et al,
>
> The Oracle Reference Manual for 8i, "schematic diagram" has alter
> database
> <database> '<datafile>' offline drop, so that's what I tried (as
> system).
> The system came back, 'database altered', but a check of
> dba_data_files
> shows that the datafile (#115) is still there. The dba_extents lists
> no rows
> selected if I query on bytes where file# = 115, so taking the
> datafile
> offline as soon as I realized my error was successful in keepin any
> user
> data written to the datafile.
>
> Paul
>
> -----Original Message-----
> Sent: Tuesday, January 29, 2002 7:11 PM
> To: Multiple recipients of list ORACLE-L
>
>
>
> You can't safely drop a datafile from the database.
>
> When you say 'According to Oracle, I should be able to drop a
> datafile
> at has no data written to it', do you have a reference where we can
> see that. It does not sound familiar to me.
>
> Per your situation, since you have the datafile offline, just
> rename it via 'alter database <YOUR_DB_HERRE> rename file..',
> then put it back online.
>
> Jared
>
>
> On Tuesday 29 January 2002 15:08, Sherman, Paul R. wrote:
> > Hello list,
> >
> > Oracle 8.1.6.3.0, on HP-UX 11.0, using Oracle Parallel Server (OPS)
> >
> > According to Oracle, I should be able to drop a datafile that has
> no data
> > but I can not. Neither DBA studio (the garbage can stays
> > 'grayed'), nor the command line (alter tablespace, with the DROP
> clause)
> > works. I had immediately taken the datafile offline (I had typed
> > sbplus_x18.dbf instead of sbplus_x16.dbf for the datafile name to
> use in
> > case you are wondering how this turn of events happened in the
> first
> > place), and checked all of the books, and Meta-Link. I tried a test
> on a
> > non-production machine, no go; even taking the tablespace off-line
> first
> > makes no difference. And of course I get errors as one node can not
> see
> the
> > other nodes sbplus_x18.dbf datafile. I tried an 'alter system check
> > datafiles' to see if this would make the other node happy (as the
> datafile
> > is now off-line, this may work), but I need a solution other than
> exporting
> > the data, rebuilding the tablespace, then importing the export.
> >
> > Anyone ever come across this issue ?
> >
> > Thank you,
> >
> > Paul Sherman
> > DBA
> > voice - 781-501-4143 (office)
> > fax - 781-278-8341 (office)
> > email - psherman_at_elcom.com
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Jared Still
> INET: jkstill_at_cybcon.com
>
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> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Sherman, Paul R.
> INET: PSherman_at_elcom.com
>
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Received on Wed Jan 30 2002 - 09:06:04 CST