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by: Barry Schiffman |
last post by:
I'm trying to build a bsddb hash database for an
application, where it will be read-only.
Actually, the app will use three similar databases.
All appeared to be writen OK -- no errors -- and the
two smaller ones of around 50 megs each are correct.
The largest one, about 200 megs, is written, and can
be read, and the strings are correctly...
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by: Redd |
last post by:
The following is a technical report on a data modeling project
that was recently assigned to me by my professor. I post it
so that anyone else who is studying databases and data modeling
can have an example to go by with their study of databases.
I was assinged to come up with a data model, but I choose the
Autoparts sales and inventory...
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by: ml |
last post by:
My employers currently use Access for processing large volumes of data
for reporting and simple modelling, which involves a lot of make
table/update queries etc.
I have been asked to work on a retail forecasting model, but looking at
the spec. the base data tables have approximately 6 million records.
I know this can theoretically be done...
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by: Simon Harvey |
last post by:
Hi,
In my application I get lots of different sorts of information from
databases. As such, a lot of information is stored in DataSets and DataTable
objects.
Up until now, I have been passing around chunks of data in
DataTables/DataSets, simply because that was the format that they were in
when the data was taken from the database. Now,...
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by: laimis |
last post by:
Hey guys,
I just recently got introduced to data mappers (DTO mapper). So now I
have a SqlHelper being used by DTOMapper and then business layer is
using DTOMapper when it needs to persist object to database or load them
back. Everything is working nicely so far. My question is, is it OK
practice to use DTOMapper rfom the presentation...
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by: Chris Springer |
last post by:
I'd like to get some feedback on the issue of storing data out to disk and
where to store it. I've never been in a production environment in
programming so you'll have to bear with me...
My question is about storing data in a database. Yes I understand that you
can link to a database in your program and read and write to the database
etc...
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by: Pradeep |
last post by:
Hello,
I need to take a set of input tables and create an XML output file. The
format of the XML output must be user-definable and must be intuitive
enough for non-techies to use.
input table(s) + SomeSchemaDefinition ==XML file
I have seen examples of XML file generation with fixed scope. For
example, if input table (called customer)...
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by: robert |
last post by:
Is there a ready made function in numpy/scipy to compute the correlation y=mx+o of an X and Y fast:
m, m-err, o, o-err, r-coef,r-coef-err ?
Or a formula to to compute the 3 error ranges?
-robert
PS:
numpy.corrcoef computes only the bare coeff:
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by: Jack |
last post by:
I need to process large amount of data. The data structure fits well
in a dictionary but the amount is large - close to or more than the size
of physical memory. I wonder what will happen if I try to load the data
into a dictionary. Will Python use swap memory or will it fail?
Thanks.
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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...
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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...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it. ...
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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...
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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...
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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...
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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: 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...
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