data

Read data from damaged media

Is it possible to read damaged media (cd, hdd, dvd,...) even if windows explorer bombs out? What I mean to ask is, whether there is a set of APIs or something that can access the disk at a very low level (below explorer?) and read whatever can be retrieved even if it is only partial, especially if you can still see the file is there fro...

So, what is the current state of the art in data quality tools...?

We have a project coming up with significant data quality challenges and I was curious what the state of art in data quality related tools and methodoligies is today for small-to-medium size organizations. Any recommendations? ...

Where can I find free and open data?

Sooner or later, coders will feel the need to have access to "open data" in one of their projects, from knowing a city's zip to a more obscure information such as the axial tilt of Pluto. I know data.un.org which offers access to the UN's extensive array of databases that deal with human development and other socio-economic issues. The ...

jquery table header sort

Anybody know of a plugin, or a built in function to make the columns in a table sortable? i.e. I click on the column header and it sorts the rows by that column? ...

Replacement for XML to represent Data structures in C++

At work we have a testing tool that is used to send queries to a data source. The tool takes in input as XML files. The XML files were simple and easy to parse as long as the data structures we tried to represent were one layer deep. But now these data structures are more complex and representing them in XML is getting to be highly confu...

Dynamically bind data to dropdownlist in asp.net mvc

Hi, How to dynamically bind data to <%Html.Dropdownlist.... in asp.net MVC? Regards, Ambika ...

Multiple apps sharing same reference data . .

I have multiple winforms applications that download large sets of reference data on startup. I realized that there might be a more efficient way to store this data locally instead of duplicating the memory in everyone one of the applications. This data is used for large drop down pick lists and data mappings. Does anyone have an out o...

What exactly causes binary file "gibberish"?

I haven't found an answer to this particular question; perhaps there isn't one. But I've been wondering for a while about it. What exactly causes a binary file to display as "gibberish" when you look at it in a text editor? It's the same thing with encrypted files. Are the binary values of the file trying to be converted into ASCII? Is ...

How do you share data between a parent and forked child process in Python?

I'm pretty sure one would do this using the os.plock(op) function, but I have no idea how. Also, if there's a better way, I'd be grateful to find out. Code snippets are very welcome. Thanks! ...

How would you approach this data processing task?

I have a file containing 250 million website URLs, each with an IP address, page title, country name, server banner (e.g. "Apache"), response time (in ms), number of images and so on. At the moment, these records are in a 25gb flat file. I'm interested in generating various statistics from this file, such as: number of IP addresses re...

How to salvage referential integrity with mutiple databases

I am in the middle of designing a system that will be used to feed several production sites around the country (all information is in one site) with the potential to add more. Initially I thought that I could get away with only using one database. I am now re-thinking my original design and leaning toward a more scalable solution. Kee...

Simple Geographic Data Sources for a Web App

For a web app I'm working on, I need to know the lat/lon of about 300 US cities. I also need to know the lat/lon for every US zip code. Does anyone know of a free source to get this information? ...

How to find thousands of company names?

How can I find or generate thousands of company names for testing and demo purposes? (Address, phone number, and related information would be nice too.) I've got a system I'm building which includes business contact information. Pretty common no doubt. My test/demo database currently has randomly generated individual's names loaded...

Where I can download sample database which can be used as data warehouse?

Hello! Where I can download sample database which can be used for data warehouse creation? It should't be sample from Microsoft (Northwind etc.). Thanks in advance EDIT: Sorry for not clarifying my question. At my university we have class where we must create some data warehouse and since Northwind is so popular over net then professo...

How would one share data between a parent and forked child process in Haskell?

How would I even go about forking a child process using Haskell in the first place? Also, if pipes are an obvious solution to the data sharing question - is there any other way to do it besides using pipes? I'm familiar with the use of shared memory segments in C (the shmget, *shmat, shmdt and shmctl functions). Could Haskell be able to...

Whats the 'best' method of writing data out to a file, to be later read in again. (C++)

Hi, What is the best way of storing data out to a file on a network, which will be later read in again programmatically. Target platform for the program is Linux (Fedora), but it will need to write out a file to a Windows (XP) machine This needs to be in C++, there will be a high number of write / read events so it needs to be efficien...

I need a standard package to move key,value pairs over a net connection: any tips?

As I hate reinventing the wheel, I wonder if there are any commonly used packaged out there for doing hte simple job of communicating (key,value) pairs of data betweeen two network endpoints (probably TCP/IP is the most likely carrier). I would like something that works in any environment, which for me means Unix/Linux-style socket API ...

How to unify overlapping id systems into a single system?

What's the best way to unify several overlapping id systems into a unified one while maintaining the old id system. I have several different ids on my website... (E.g /publisher/1234 and /designer/1234) I would like to unify the ids into a new system, but want to preserve the functionality of the older system. ...

Looking for a generic XMLrequest and data extraction script

Hello, I am also looking for a Python script to do the following: Send an http request to a remote geodata server and read the data into our existing Python geoprocessing scripts. Is there a generic script available so that I can customise it for the project in hand? Sincerely, David ...

Data structure used for directory structure?

Hi, I'm making a program which the user build directories (not in windows, in my app) and in these folders there are subfolders and so on; every folder must contain either folders or documents. What is the best data structure to use? Notice that the user may select a subfolder and search for documents in it and in its subfolders. And I d...