Re: What is Your Idea for optimizing Table Performance?

To Robert Freeman,

Thank You so much, I am pointing to Newbie DBAs/Immediate DBAs Tasks, What
can they do to improve performance on Database by doing something with
TABLEs/INDEXs.
Maybe, They can improve performance database since created tablespaces,
created tables. I know We can read on Oracle Docs and Books. But I hope some
tricks and ideas .

Thank You
Surachart Opun
Oracle ACE, Contributor (Oracle User Group in Thailand)
http://surachartopun.com
skye: surachart_op




On Sat, Mar 19, 2011 at 9:04 PM, Robert Freeman <robertgfreeman@xxxxxxxxx>wrote:

> Exadata has additional forms of compression available in HCC that go even
> beyond the OLTP compression. For performance the lighter form of HCC
> compression (warehouse compression) might well be what you want to look at.
> With a significant reduction in rows per block, combined with the rest of
> Exadata's storage cell features, you can get some incredible performance.
>
> Here is a white paper on Exadata HCC:
> http://www.oracle.com/technetwork/middleware/bi-foundation/ehcc-twp-131254.pdf
>
> Cheers!
>
> Robert G. Freeman
> Master Principal Consultant, Oracle Corporation, Oracle ACE
> Author of various books on RMAN, New Features and this shorter signature
> line.
> Blog: http://robertgfreeman.blogspot.com
>
>
> ------------------------------
> *From:* Surachart Opun <surachart@xxxxxxxxx>
> *To:* Subodh Deshpande <deshpande.subodh@xxxxxxxxx>
> *Cc:* "Oracle-L@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
> *Sent:* Sat, March 19, 2011 2:27:06 AM
> *Subject:* Re: What is Your Idea for optimizing Table Performance?
>
> Thank You. Good idea for table types. that is something what we should
> decide before create table.
> Example: use varchar2 not varchar/use number when business need number....
> Perhaps, We should know about data... On new 11G, Compression is good for
> DW. How do you think?
>
> On 11gR2, Database Smart Flash Cache, this may good for OLTP. If we talk
> about Exadata, we will use "Exadata Smart Flash Cache"
>
> and your idea?
>
> Thank You
> Surachart Opun
> Oracle ACE, Contributor (Oracle User Group in Thailand)
> http://surachartopun.com
> skye: surachart_op
>
>
>
>
> On Sat, Mar 19, 2011 at 12:47 PM, Subodh Deshpande <
> deshpande.subodh@xxxxxxxxx> wrote:
>
>> I think tables and their types should be decided beofre creating it..
>> the first column of the table is usually a primary key because of its
>> uniqueness..where as rest of the columns gives more information of the
>> primary key or about other columns in the tables..
>>
>> the factor 'searching of information on some basis' decides indexes
>>
>> grouping of tables, indexes, tablespaces, datafiles is usaully from the
>> application, performance, usuages, minimum affordable downtime and hence
>> maintenance point of view (insightful architect and dba can recommend
>> hardware requirement using this info) ..here there is scope for giving added
>> redundanct and it should be allowed only from maintenance and performance
>> point of view and that too if certain objects will have hardly some growth.
>>
>> architect should recommend (if he/she knows dba tasks) backup recovery and
>> performance gain practices(including table performance, index performance
>> etc) or should decide with dba how to proceed about depending upon the
>> availabilty of man power and dba tasks at client side..
>>
>> nomination of objects such as tables, indexex, tablespaces, datafiles
>> should give easyness in understanding of these things to a dba, developer
>> and or maintenance technician
>>
>> these are my view points considering a general ERP kind of application
>>
>> thanks..subodh
>> On 18 March 2011 16:43, Surachart Opun <surachart@xxxxxxxxx> wrote:
>>
>>> When we work with Oracle Database as DBA or Developer. We have to
>>> maintain about table segments. We have to know about Tablepsace/Database
>>> file.
>>> When we create table, Do you think about it before? Or Do something after
>>> created table?
>>>
>>> What is Your Idea for optimizing Table Performance?
>>>
>>> Surachart Opun
>>> http://surachartopun.com
>>> skye: surachart_op
>>>
>>>
>>>
>>
>>
>> --
>> ==============================
>> DO NOT FORGET TO SMILE TODAY
>> ==============================
>>
>
>

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