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by: Code4u |
last post by:
I need to write an algorithm that sheds the outliers in a large data
set, for example, I might want to ignore the smallest 2% of values and
find the next smallest. Boost has a nth_element algorithm, however, it
partially sorts the data. I have a requirement that the data remain in
the orginal order. Of course I could make a copy of the vector or
array and then apply nth_element, but this would be expensive in
memory and would require...
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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: sameer_deshpande |
last post by:
Hi,
I need to create a partition table but the column on which I need to
create a partition may not have any logical ranges. So while creating
or defining partition function I can not use any range.
like
CREATE PARTITION FUNCTION my_part_func (NUMERIC(7)) AS RANGE LEFT FOR
VALUES (1,100,1000);
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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: harrylarenson |
last post by:
Hi, Happy New Year.
I am trying to insert a query to a partitioned view but the error is :
Server: Msg 4436, Level 16, State 12, Line 1
UNION ALL view 'T' is not updatable because a partitioning column was not found.
Here is all my query statements :
create table t1
(ID int primary key,
Code int check(code between 1 and 15 ))
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by: Jurgen Haan |
last post by:
Hi hi everyone.
We have upgraded our DB2 LUW 8.2.1 which was directly installed from our
DB2 CD's to DB2 LUW 8.2.6 (FP13). (system: HP DL385 (AMD64), single
socket, dual core. 8GB memory. SLES 10. NetApp FAS250 storage array).
This went quite well, but it rendered our permanent (legal) DB2 license
invalid, and I can see of no way to get our environment up and running
with FP13 installed.
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by: Nate Eaton |
last post by:
According to the original whitepaper on UDB range partitioning (http://
www-106.ibm.com/developerworks/db2/library/techarticle/0202zuzarte/
0202zuzarte.pdf), you can use a range as a criteria, either in the
UNION ALL view or in constraints. One restriction it lists, though, is
that the optimizer can't use a constraint that references a range
versus a discrete value for SQL containing host variables or parameter
markers. That was for V7 and...
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by: brunodamato |
last post by:
I have 2 questions regarding DB2 9's Range Partitioning.
1. Do the Partition fields have to reside on the table being Partitioned? We have a Fact table we would like to Partition and the Week identifier resides on the table. This identifier's parent Dimension table has a month value. In order to Partition the Fact table by month, somehow the Dimension table would need to be referenced.
2. The Fact table mentioned in the above...
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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: 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: 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: 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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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