RE: Datafile info.

  • From: "Leonard, George" <GLeonard@xxxxxxxxxxxxx>
  • To: <davidsharples@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 18 Nov 2004 11:58:46 +0200

Datafiles names are actually stored in the exact format it was specified
in (case/format of file on file system), very important on unix
environments where filename can be exactly the same except for the Case.

If I am not wrong on NT it actually uppercases the file where on unix it
is left as specified.


George
=20________________________________________________
George Leonard
Oracle Database Administrator
New Dawn Technologies @ Wesbank
E-mail:gleonard@xxxxxxxxxxxxx
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-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of David Sharples
Sent: 17 November 2004 16:22 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: Datafile info.

data files are not stored in up case in the data dictionaey

SQL> select file_name from dba_data_files
=20 2  /

FILE_NAME
------------------------------------------------------------------------
--------
/u02/oradata/system01.dbf


So your query would return nothing (something you could of checked)


On Wed, 17 Nov 2004 09:08:15 -0500, Igor Neyman <ineyman@xxxxxxxxxxxxxx>
wrote:
>=20
> select TABLESPACE_NAME, BYTES, BLOCKS from DBA_DATAFILES
>    where FILE_NAME =3D UPPER('/oracle/dbs/BIG.dbf');
>=20
> Igor Neyman, OCP DBA
> ineyman@xxxxxxxxxxxxxx
>=20
>=20
>=20
>=20
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx
> [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jaehne, Richard S
> Sent: Tuesday, November 16, 2004 3:38 PM
> To: 'Oracle-L (E-mail)
> Subject: Datafile info.
>=20
> All,=3D20
>=20
> I've got a large (4G.) datafile  let's call him BIG.dbf on one of my =3D=

> database servers that I'm not sure what's living in it. =3D20
>=20
> I did run the following sql statement:
>=20
> SQL> select TABLESPACE_NAME, BYTES, BLOCKS from DBA_DATAFILES
>    2    where FILE_NAME =3D3D '/oracle/dbs/BIG.dbf';
>=20
> no rows selected
>=20
> Does this mean that this is an empty file?  I'm a little puzzled.
>=20
> Thanks,=3D20
>=20
> Richard Jaehne
> --
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>=20
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