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by: Jeff Boes |
last post by:
I'm sure this is a concept that's been explored here. I have a table
(fairly simple, just two columns, one of which is a 32-digit checksum)
with several million rows (currently, about 7 million). About a million
times a day we do
select * from my_table where md5 = ?
to verify presence or absence of the row, and base further processing on
that information.
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by: Mats Kling |
last post by:
Hi all,
We are logging approx. 3 million records every day into a history
table.
Last week we ran into the 64 GB limit in UDB 8 so we recreated the
table with 8 k pagesize to get some breathingroom before we hit the
128 GB limit.
We are considering partitioning and I just wanted to check with you
that our proposal is the best one:
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by: jorge |
last post by:
I have just started working with DB2 Data Partition Feature.. Given a
table
name, how can I find out the partitioning key of that table? Is there a
SYSIBM.*
table that I can look at?
Thanks,
Jorge
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by: Sumanth |
last post by:
Hi,
I have a table that I would like to partition. It has a column c1 which has
100 distinct values.
I was planning to partition the table on column c1 using a partioned index,
and then apply data partitioned secondary indexes on the table.
I then read about partioned table spaces, How do I get the same behaviour as
above by creating
a partioned table space?Do I create the partion table space, create the
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by: shsandeep |
last post by:
Hi all,
I have heard and read this many times: "Partitions should only be used for
'very large' tables".
What actually determines whether a table is 'very large' or not?
I have tables containing 0.5 million rows, 8 million rows, 14 & 29 million
rows as well.
How do I categorize them?
Any comments will be helpful.
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by: shsandeep |
last post by:
Can I partition an existing table?
I have a table which has started growing at a very fast pace and would
like to partition it.
Thanks.
Cheers,
San.
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by: shsandeep |
last post by:
DB2 V8.2 (not Viper yet and no range partitioning!!)
I have created a table T1 (col1, col2) with col1 as the primary key.
When I try to create a partitioning key on col2, it gives me error that it
should have all primary keys included.
So, I created table T1 again with col2 as the partitioning key.
Now, I do not have col1 as the primary key.
When I try to create col1 as the primary key, I get the following error:
1 The primary key, each...
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by: Veeru71 |
last post by:
Can someone point me to good documentation on 'WITH clause" ? (I
couldn't get much
out of Queries section from SQL Reference manual).
We are getting better performance when we explicity use global temp
tables to store
intermediate results than using "WITH cluase" in our queries.
Where does DB2 store the intermediate results if the query uses "WITH
clause" ?
Thanks
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by: Piero 'Giops' Giorgi |
last post by:
Hi!
I have a question:
I already have a DB that uses partitions to divide data in US
Counties, partitioned by state.
Can I use TWO levels of partitioning?
I mean... 3077 filegroups and 50 partition functions that address
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by: mandor |
last post by:
Hello,
I need some advise in table design, and more specifically about table partitioning. I read some papers and there was mentioned that if a table is expected to hold millions of rows, it's a good idea to partition it.
Vertical partitioning, as I understood it, is separating data that differs in some way in a separate table, adding a key field as an identifier to what segment it belongs.
The particular table holds signal measurements...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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