Oracle-L: Re: 9iR2, grant select on a column (without using views) using RL

From: Arup Nanda <orarup_at_hotmail.com>
Date: Mon, 25 Aug 2003 11:14:32 -0800
Message-ID: <F001.005CD10D.20030825111432@fatcity.com>

NO!

Never move a data dictionary table out of the SYSTEM tablespace; or do any kind of operation on them. The only tables that can be operated on - particularly DELETEs and TRUNCATEs, are AUD$ and FGA_LOG$ (in 9i).

Besides, how would moving SOURCE$ table from SYSTEM tablespace help? The probelm is not a smaller tablespace size. Most of the data dictionary views are well indexed, anyway; so performance impact may be low.

Something I have monkeyed around earlier is to place my own indexes on these tables, if needed. Mind you, these are not supported by Oracle; so you are on your own if something happens. In most cases, however, that may not be necessary.

Hope this helps.

Arup

Original Message ----- From: A Joshi To: Multiple recipients of list ORACLE-L Sent: Monday, August 25, 2003 2:14 PM Subject: Re: 9iR2, grant select on a column (without using views) using RL

Hi,
Unrelated question : If the system tablespace is so big would it not hurt performance for queries to all_tables, v$session, dba_segments etc. In such a case : can tables like source$ be moved out of system tablespace and would it make sense. Thank You

Vladimir Begun <vladimir.begun_at_oracle.com> wrote: Tell me about it. :)

    Regards,
    --
    Vladimir Begun
    The statements and opinions expressed here are my own and     do not necessarily represent those of Oracle Corporation.

Tanel Poder wrote:
> Hi!
>
> The views are small part. There are over 150000 objects in whole database,
> of which over 22000 are packages. System TS is about 4GB. (source$ table is
> 1.2GB, total of IDL_ tables is also about 1.2G).
>
> Tanel.

    --
    Please see the official ORACLE-L FAQ: http://www.orafaq.net     --
    Author: Vladimir Begun
    INET: vladimir.begun_at_oracle.com

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Received on Mon Aug 25 2003 - 14:14:32 CDT