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  • Split comma separated string to count duplicates

    - by josepv
    I have the following data in my database (comma separated strings): "word, test, hello" "test, lorem, word" "test" ... etc How can I transform this data into a Dictionary whereby each string is separated into each distinct word together with the number of times that it occurs, i.e. {"test", 3}, {"word", 2}, {"hello", 1}, {"lorem", 1} I will have approximately 3000 rows of data in case this makes a difference to any solution offered. Also I am using .NET 3.5 (and would be interested to see any solution using linq)

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  • diff between tables

    - by www.yegorov-p.ru
    I have two tables, with the same structure, for example: table "first' with columns 'a','b','c' and table 'second' with the same columns. How to find difference betweet those two tables? Of course, I can make some script on python, that will make set(a)-set(b), but I think there is some way to do it in mysql.

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  • How do I aggregate activerecord model data for a specific time period?

    - by gsiener
    I'm collecting data from a system every ~10s (this time difference varies due to communication time with networked devices). I'd like to calculate averages and sums of the stored values for this activerecord model on a daily basis. All records are stored in UTC. What's the correct way to sum and average values for, e.g., the previous day from midnight to midnight EST? I can do this in sql but don't know the "rails way" to make this calculation.

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  • Licensing WPF application

    - by Macros
    Does anyone have any guidance on the best way to manage licensing for a WPF application? I would like to have different levels of licensing (Free, Trial and Professional). The app itself will probably be distributed with a WiX installer (if that makes any difference)

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  • Git aliases that are stored in origin

    - by jga
    I use git with a big development team and I'd like to have a set of aliases be common across every developer. They change every so often, so I'd like to store them in origin somehow. Is there any way to set that up in git? I'm using gitosis for the git server (not sure if that would make a difference).

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  • How to run Red5 applications on a remote server?

    - by domi
    I've got a really nasty problem... I wrote a Red5 app and so on and it is running perfectly on my local computer. Now the problem occurs = How can I make this program work on a remote server? Local : Mac OS X 10.5 - Red5 0.63 Server: CentOS 5 - Red5 0.90 Maybe it's because of the version difference. But I can't test Red5 0.90 locally because it won't start up and I can't install the 0.63 version on the server because of missing dependencies (and broken links to them...)

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  • Can I use declare-const to eliminate the forall universal quantifier?

    - by monica
    I have some confusion of using universal quantifier and declare-const without using forall (set-option :mbqi true) (declare-fun f (Int Int) Int) (declare-const a Int) (declare-const b Int) (assert (forall ((x Int)) (>= (f x x) (+ x a)))) I can write like this: (declare-const x Int) (assert (>= (f x x) (+ x a)))) with Z3 will explore all the possible values of type Int in this two cases. So what's the difference? Can I really use the declare-const to eliminate the forall quantifier?

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  • WPF or Windows Forms

    - by Luminose
    I've been playing around with C# console applications for about a year and I want to move on to creating GUI applications. I have never done any GUI development besides basic Java applications, but I want to continue using C#. Should I start learning Windows Forms or jump straight to WPF? Is there a huge difference? Does WPF build on top of Windows Forms or are they totally different?

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  • Is SQL DATEDIFF(year, ..., ...) an Expensive Computation?

    - by rlb.usa
    I'm trying to optimize up some horrendously complicated SQL queries because it takes too long to finish. In my queries, I have dynamically created SQL statements with lots of the same functions, so I created a temporary table where each function is only called once instead of many, many times - this cut my execution time by 3/4. So my question is, can I expect to see much of a difference if say, 1,000 datediff computations are narrowed to 100?

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  • How to escape charaters in the title of a marker in a Google Maps?

    - by Anthony
    Say I have this piece of code: var marker = new google.maps.Marker({ position: location, title: 'B&#250;fals', map: map }); This creates a marker as expected but if I hover the mouse over it I don’t see 'Búfals' as I would expect (instead I see the html code). This doesn't make any difference: var marker = new google.maps.Marker({ position: location, title: unescape('B&#250;fals'), map: map }); Any ideas? Thanks.

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  • Spring MVC, forward

    - by aauser
    Is there any difference between public class Controller1 extends AbstractController { @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { return new AnotherController().handleRequest(request, response); } } and @Controller public class Controller1 { @RequestMapping ... public String handleRequest() { return "forward:/path_to_my_another_controller"; } }

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  • Can't access font resource in Silverlight class library

    - by Matt
    I have a reasonably large Silveright 3.0 project on the go, and I'm having issues accessing a couple of custom font resources from within one of the assemblies. I've got a working test solution where I have added a custom font as a resource, and can access it fine from XAML using: <TextBlock Text="Test" FontFamily="FontName.ttf#Font Name" /> The test solution consists of the TestProject.Application and the TestProject.Application.Web projects, with all the fun and games obviously in the TestProject.Application project However, when I try this in my main solution, the fonts refuse to show in the correct type face (instead showing in the default font). There's no difference in the way the font has been added to project between the test solution and the main solution, and the XAML is identical. However, there is a solution layout difference. In the main solution, as well as having a MainApp.Application and MainApp.Application.Web project, I also have a MainApp.Application.ViewModel project and a MainApp.Application.Views project, and the problem piece of XAML is the in the MainApp.Application.Views project (not the .Application project like the test solution). I've tried putting the font into either the .Application or .Application.Views project, tried changing the Build Action to Content, Embedded Resource etc, all to no avail. So, is there an issue accessing font resources from a child assembly that I don't know about, or has anyone successfully done this? My long term need will be to have the valid custom fonts being stored as resources in a separate .Application.FontLibrary assembly that will be on-demand downloaded and cached, and the XAML controls in the .Application.Views project will need to reference this FontLibrary assembly to get the valid fonts. I've also tried xcreating this separate font library assembly, and I can't seem to get the fonts from the second assembly. As some additional information, I've also tried the following font referencing approaches: <TextBlock Text="Test" FontFamily="/FontName.ttf#Font Name" /> <TextBlock Text="Test" FontFamily="pack:application,,,/FontName.ttf#Font Name" /> <TextBlock Text="Test" FontFamily="pack:application,,,/MainApp.Application.Views;/FontName.ttf#Font Name" /> <TextBlock Text="Test" FontFamily="pack:application,,,/MainApp.Application.Views;component/FontName.ttf#Font Name" /> And a few similar variants with different assembly references/sub directories/random semi colons. And so far nothing works... anyone struck this (and preferably solved it)?

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  • What is the relationship between domNode and htmlelement?

    - by Turtle
    Hello, I am confused about the two terms. What is the difference in browser-side javascript programming? I use dojo as framework. And there is only the concept of domNode. But browser debugger always told me something as htmlelement. Are they just the same thing with different names, or with some subtle differences? Thanks.

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  • vspace vs. vskip

    - by Geoff
    What is the difference between \vspace{-1em} and \vskip -1em, for example? I guess the first is LaTeX, and the latter is TeX. When is the proper time to use one and not the other, and why?

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  • LINQ entity query performance

    - by Abdel Olakara
    Hi all, I have a silly question. I would like to know if there is performance deference in these two quries: var cObject = from cust in entities.Customer where cust.id == cid select cust; and var cObject = entities.Customer.First( c=> c.id == cid); My query return only one record as I am querying with the primary key. But do they make any difference?

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  • Specifying schema for temporary tables

    - by Tom Hunter
    I'm used to seeing temporary tables created with just the hash/number symbol, like this: CREATE TABLE #Test ( [Id] INT ) However, I've recently come across stored procedure code that specifies the schema name when creating temporary tables, for example: CREATE TABLE [dbo].[#Test] ( [Id] INT ) Is there any reason why you would want to do this? If you're only specifying the user's default schema, does it make any difference? Does this refer to the [dbo] schema in the local database or the tempdb database?

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  • Does UserId data type affect FormsAuthentication.SetAuthCookie(UserId.ToString(), false)?

    - by FreshCode
    Does the original data type of the username string in a call to FormsAuthentication.SetAuthCookie(...) make any difference with regards to security or code maintainability? As I understand it, the cookie is encrypted and used to identify a user on each request. I'm curious whether it should affect the design of the primary key on my Users table in my database, eg. Guid vs int or a unique username string.

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  • Two FullTextSqlQueries?

    - by SeeBees
    There are two FullTextSqlQueries, one in the namespace Microsoft.Office.Server.Search.Query, and the other in Microsoft.Office.Server.Search.Query. What's the difference between these two? Which one should I use?

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