Should I use Database Partitioning now ?

Hi,
I have an Employee table in an HR system, consist of data of 10 branch, total 3,5 million rows, size about 8-10 GB.
Each branch only allowed to access data of their branch.
BUT some department could access all data.
Given this information, should I implement database partitioning on this table ?
If yes, what are the reasons ?
If No, also what are tke reasons ?
Thank you for your help,
xtanto

Sometimes, Partitioning is not necessaryly increases performance as we thinks.
We are you going to have DML regularly on these tables?
Read the following
http://asktom.oracle.com/pls/ask/f?p=4950:8:2270402190261165858::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:14188311731917

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What type of partition should I use? Range or Hash or ..?

Hi,
I am on Oracle 8.1.7.4 .
I have a table with 10 million rows and looks like its a good candidate for partitioning.
There is a varchar2 column and the data is evenly distributed on the string value. If I want to partition the table on that string value what type of partitioning can I use. How can I give the range, if I use range partition, on the string value ?
Can/Should I use hash partitioning?
I know that there is a list partitioning in O9i, but I am on 8i.
Please help.
Regards

<quote>
I have a table with 10 million rows and looks like its a good candidate for partitioning.
</quote>
Table volume, in itself, is not enough to warrant partitioning â¦ hope you have some other reasons.
<quote>
â¦ but would like to partition the table on the mentioned varchar2 column, so that queries would be efficiant.
</quote>
Since you donât mention the actual query or class of queries, maybe it is worth mentioning that partitioning could speed up some queries but also can slow down a lot more other queries.
<quote>
So, how can i re-create the table partitioned on a varchar2 column
</quote>
No different than numbers or dates?
create table tp
( str   varchar2(10) not null
,fill char(20)      not null
partition by range(str)
( partition p1 values less than ('F')
,partition p2 values less than ('L')
,partition p3 values less than ('R')
,partition p4 values less than (maxvalue)
insert into tp
select substr(object_name,1,10), lpad('x',20,'x')
from user_objects
flip@FLOP> select * from tp partition (p2);
STR        FILL
F1         xxxxxxxxxxxxxxxxxxxx
GENERATE_R xxxxxxxxxxxxxxxxxxxx
IPSDEV.US. xxxxxxxxxxxxxxxxxxxxThe link to Tomâs article is fine â¦ it just happens to be one of the few threads heâs not mentioning that partitioning is not the magic fast=true mechanism â¦ look for some other articles on partitioning and youâll quickly discover his views on this subject.
There may be a case for partitioning â¦ but you havenât presented any reasonable justification for it â¦ so, why bother?

I erased my windows partition using disk utility then realized I should have used boot camp, because now I can't resize the original partition and seem to be stuck with a ghost unusable space. Boot Camp now doesn't give me the option to install or re

I erased my windows partition using disk utility then realized I should have used boot camp, because now I can't resize the original partition and seem to be stuck with a ghost unusable space. Boot Camp now doesn't give me the option to install or remove windows partition.

Hi, Ralph,
The problem is that I did erase the partition, using disk utility, but I can't go back to my original disk size pre-partition, as disk utility won't let me do it and gives the message "Couldn’t modify partition map because file system verification failed." When I try to use Boot Camp Assistant it won't let me select the third option to remove windows.

Which partition scheme should i use?

Hello guys (and maybe ladies), i am new to Linux and i have decided to set sail on an epic quest: Setting up a Linux desktop with Arch.
I have installed Arch few times on the main victim machine and on another laptop too, so i'm pretty much confident with most of the commands i run (through the forum captcha got me puzzled for a while, lol).
So, into the topic, i would like to gather suggestions on what partition scheme should i use, i have an 120GB Intel X25-M SSD i intend to install Arch on, RAM amount is 6 gigs.
From the wiki and forum reading i done so far, i came up with the following SSD torture plan:
/dev/sdb1 -- root -- 25GB
/dev/sdb2 -- /var -- 15GB
/dev/sdb3 -- /home -- rest of the space, somewhere around 80GB
All are btrfs.
I intend to install swap later on a rotating storage, or not.
Arch wiki @ Btrfs :
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And here's a third smile
Last edited by EmigratePenguin (2012-08-07 09:28:41)

I want to add my (different) setup here, too, to help you decide. My setup is:
/ 15G
/boot 100M
/var 10G
/home rest(91G)
I also have two systems with seperate /usr, as I like it that way now, but that's a little advanced (though not hard, so if you want to learn, try it). Also, if you want to encrypt your system, make boot seperate as suggested by silentsnake.
But my most important suggestion if you like to experiment: use LVM. Allocate only limited space to your partitions. I suggest: 10G each, except 100M boot, if you keep /usr seperate, use 3G for root. LVM is really cool and very easy and highly flexible. And it gives you the possibility to add, remove and shift sizes around as you please - I love it! Just leave the free space you have hanging in the volume group and add it where it is needed. If you are feeling lucky or highly flexible, make /boot an LVM partition, but I don't recommend it: I do not see any benefit, only some possible issues.
As for swap: 6G is enough RAM - if you need swap later (e.g. hibernation) use a swap file (I don't, but I hear it's possible).
On your file systems: If you are into experimenting, you can choose whatever you like, but I doubt you will be unhappy in any way if you just choose ext3 (though Reiser seems like a nice idea for var).
Regards,
javex

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Looks bad. I would strongly advise backing up the stuff on the other two partitions as soon as possible in case the rest of the drive goes wrong.
Beyond that, Disk Utility has limited abilities to repair disks, DiskWarrior uses a different approach and might, emphasis might be more successful. It has certainly done the job for me in the past when Disk Utility could not.
See http://www.alsoft.com/diskwarrior/

I used a partitioned HDD for time machine, using a partition already containing other data files. I am now no longer able to view that partition in Finder. Disk Utility shows it in grey and "not mounted". Any suggestions of how to access the files?

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HDD is a Toshiba 1TB, partitioned into two 500GB partitions.
OS X version 10.9.2

Yes, sharing a TM disk is a bad idea, and disks are cheap enough so that you don't need to.
Now
Have you tried to repair the disk yet

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What are the logical database source (SQVI) should i use for quick viewer

Dear expert,
Would like to seek for your help, how to use (SQVI) quick viewer/SAP query to generate the listing of and can I use SQVI -quick viewer and select the data source as logical database source to generate in order to generate the listing of GL account number,GL account descrition , tax category,posting without tax allowed column in the query by company?
Between, what are the data source should I use for logical database to generate the query with listing of GL account number,GL account descrition , tax category,posting without tax allowed column in the query by company?
Please help.
Many Thanks.
Regards,
Karen

Hi,
Thank you for the prompt reply, what I would like the query to generate is the master data GL listing for GL account,GL description,Tax category, posting without tax allowed column where i use BRF as the data source for logical database to generate the quick viewver but the BRF data source do not have the GL description.
How I can join table/join query or what are the data source should i use so that i can able to generate the query with GL master data listing by company code by display GL account,GL description,Tax category, posting without tax allowed?
Between,do you have any reference/link/document on the how to use the SQV1?
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And also what are the sap query,inforset query,quick viewer mean for and what are the difference between them also when should i use sap query,inforset query,quick viewer to generate the query?
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Many thanks.
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Should I use a 16gb SSD for my /boot and / partitions?

Should I use a SSD for /boot and / partitions or just not even bother with one so small?
EDIT: For the sake of another thread. You think Arch would run just fine on a PIII 733mhz, 128mb RAM computer? Grandmother gave it to me after she got herself a new one (one I built lol).
Last edited by Zetsumei (2009-04-14 23:36:08)

Berticus wrote:As for SSD, that's really up to you. Personally, I would do it. Would love inexpensive SSD hard drives that could hold TB's.
Its only a matter of time before prices on SSD drop so I'm gonna wait for bigger to be less expensive.

Used MAILBFR and now my database is gone!!

OK, I've been having trouble with one of the mail accounts on the server today so I followed the guidance around here and ran mailbfr. I did a backup first, then a -f, and th databases of all users disappeared. Don't panic, I thought, I have a backup. I've run a -r and is appears to run but the Inboxes are still empty. The directory that mailbfr created is about the right size for four users, 90MB, but it does not appear to have restored.
There's nothing obviously wrong in the terminal output.
Any advice gratefully received, I am currently calm...
Gordon.

I was wrong to say that the
/private/var/spool/imap/user folder was empty, I just
couldn't see the folders using Snax
What is Snax?
You should be using the terminal and have root access. Using anything else (even the finder) can make matters only worse. And since you did use Snax (whatever that may be), I advise you use diskutil to chek permission on your server.
The account folders are there
(and full of files) but as stated if you run mailbfr
-f they disappear as far as the mail client is
concerned.
As I said before mailbfr did definitely not touch them. And there is no reason why it should.
Did you check with a different client or Wenmail. You probably have a client and not a server issue and risk "blowing" up your server for nothing
Copying over the folders must just be
having the effect of replacing an index file,
Of course.
presumably corrupt in the case of my account.
Doubt it at this point, because mailbfr would have sorted the corruption.
As stated above, try setting up a different client.
It may be significant that the accounts do not appear
in the Maintenance/Accounts window of Server Admin
which does suggest that something is 'not quite
right' with the system.
It's not significant. SA only shows accounts that got their quota file set. As I mentioned before you can safely ignore SA.
I don't recall messing round
with the settings, though.
You don't recall or you are sure you didn't?

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Should I use the BCS where the database table is going to be updated daily.
All the records will be updated on daily basis.
Why should I use BCS when I can connect to the sql server directly and update the records that I need.
What additional benefits can I get from BCS , I do not need the search functionality.
Regards

Hi,
According to description, my understanding is that you want to know if you need to use Business Connectivity Services to connect external SQL table.
Business Connectivity Services is a centralized infrastructure in SharePoint 2013 and Office 2013 that supports integrated data solutions.
Business Connectivity Service will provide a familiar user interface to manage sql table data. It is more security for reading and writing data to external sql table.
Here is a detailed article for your reference:
https://technet.microsoft.com/en-us/library/ee661740(v=office.15).aspx
https://msdn.microsoft.com/en-us/library/office/ee556440(v=office.14).aspx
Best Regards
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
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Jerry Guo
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(110676)

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Should I use Database Partitioning now ?

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