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  • ER Data Model - confused by diagram.

    - by Khou
    Hi im a little confused by this diagram http://www.b-eye-network.com/images/content/i030ht0104.gif (Last diagram in the article) 1 - In the "ACCOUNTING ENTRY" table it shows "DebitEntry" and "CreditEntry" i) is this two column or ii) is this two rows of data? or iii) is it two separate tables on its own, Acounting_entry_credit and Accounting_entry_debit? Same question with the "ACCOUNT" table, it shows asset account, livabilities account, equaity account? are they 3 columns or are they 3 rows? Source: http://www.tdan.com/view-articles/5227/

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  • Import/Export HTML5 localStorage data

    - by hamen
    Hi all, I'm working on a simple TODO list app based on localStorage HTML5 feature: http://hamen.github.com/webnotes/ I'm wondering if it's possible to import/export data in some way. How could I provide an "Export note/Import note" feature to make users being able to save their note on their HD and import them in another browser profile? Thanks

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  • Storing expression references to data base

    - by Marcus
    I have standard arithmetic expressions sotred as strings eg. "WIDTH * 2 + HEIGHT * 2" In this example WIDTH and HEIGHT references other objects in my system and the literals WIDTH and HEIGHT refers to a property (Name) on those objects. The problem I'm having is when the Name property on an expression object changes the expression won't match anymore. One solution I came up with is to instead of storing "WIDTH * 2 + HEIGHT * 2" i store "{ID_OF_WIDTH} * 2 + {ID_OF_HEIGHT} * 2" And let my parser be able to parse this new syntax and implement an interface or such on referenced objects IExpressionReference { string IdentifierName { get; } } Anyone have a better/alternative solution to my problem?

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  • change validate message in data annotation

    - by user276640
    my object has field with data type int. when i put in html form in this textbox letter not number the validator say- The field must be a number. how can i change this messages like this [Required(ErrorMessage = "??????? ????????")] [DisplayName("????????")] public int age { get; set; }

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  • Service Layer which can switch between Web Service Layer and Data Access Layer

    - by Blake Blackwell
    I am building an application that will function as a client-server application, and also as a disconnected client application. I will be using WPF (browser app for client-server application). When interacting with the server's database, I will need to connect using WCF web services. When connecting with the localized database, I will need to connect using the local db's data access layer. What methods/patterns exist for this sort of architecture?

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  • data sync from rails with iphone sqlite db

    - by Markus
    Hi all, I'm wondering whether there is a bossibility to export some selected data from my rails mysql db to a other sqlite db. The aim is to send that sqlite file directly to my iPhone application... That way I don't have to do a lot of xml integration in the iPhone app. That seems to be very slow... Markus

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  • Fast data retrieval in MySQL

    - by trojanwarrior3000
    I have a table of users - It contains around millions of rows (user-id is the primary key). I just want to retrieve user-id and their joining date. Using SELECT user-id, joining-date FROM users requires lot of time. Is there a fast way to query/retrieve the same data from this table?

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  • How to Fake a AsyncToken return in ActionScript 3

    - by Brett
    Using Parsley, I have a service that I access through a [Command(selector='list')] public function getRssFeed( msg:RssEvent ):AsyncToken { return service.list() as AsyncToken; } when I point to the "Real" RssService, everything works as expected. My problem is when I point to the "Mock" RssService. I can't figure out how to fake a AsyncToken with some dummy data return... does anyone knows how to do this ?

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  • Power function fit to data set

    - by czerasz
    I have a set of data (in ArrayCollection) and I need to fit a power function { f(x)= B + x^alpha } to it, before display in LineChart. As result I need the alpha and B paremeter. How to do this with Flex?

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  • T-SQL: Omit/Ignore repetitive data from a specific column

    - by Dsyfa
    Hi, For my question lets consider the following sample table data: ProductID    ProductName    Price   Category 1                Apple                 5.00       Fruits 2                Apple                 5.00       Food 3                Orange               3.00       Fruits 4                Banana                 2.00       Fruits I need a query which will result in the following data set: ProductID    ProductName    Price   Category 1                Apple                 5.00       Fruits 3                Orange               3.00       Fruits 4                Banana                 2.00       Fruits As you can see ProductID 2 has been omitted/ignored because Apple is already present in the result i.e. each product must appear only once irrespective of Category or Price. Thanks

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  • Does Java need tuples?

    - by Yuval A
    This question got me re-thinking about something that always bothered me: Does Java need tuples? Do you feel the lack of them in your day-to-day work? Do you think tuples would simplify otherwise complex data structures you find yourself implementing?

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  • comparing data via a function

    - by tigermain
    I have two sets of data (locations) in seperate tables and I need to compare if they match or not. I have a UDF which performs a calculation based upon 5 values from each table. How do I perform a select with a join using this udf? my udf is basically defined by.... ALTER FUNCTION [dbo].[MatchRanking] ( @Latitude FLOAT , @Longitude FLOAT , @Postcode VARCHAR(16) , @CompanyName VARCHAR(256) , @TelephoneNumber VARCHAR(32) , @Latitude2 FLOAT , @Longitude2 FLOAT , @Postcode2 VARCHAR(16) , @CompanyName2 VARCHAR(256) , @TelephoneNumber2 VARCHAR(32) ) RETURNS INT

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  • Can I use google API to convert a PDF into PNGs?

    - by Ken
    I have noticed that when you view PDFs in google docs the PDF viewer renders the PDF file into PNG images. I was wondering if you could use Google Data API to upload a PDF and get the URLs of the rendered PNG files? I have never used the google API or really had the extra time to learn it, but if it help me do this it will be well worth the extra time.

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  • SQL storing data about columns

    - by Chris
    I'm learning SQL Server Compact for a program I'm writing that requries a local database. I have multiple tables, each with different columns and I'd like to mark each column as being a certain type (not a data type, just an integer tag) to let the program know what to do with it. I'm clueless about SQL. How does one do this?

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  • Problem to generate nested ul lists using PHP

    - by Michael Mao
    Hi all: I am working on a front-end web app where a nested unordered list would be used for the jQuery plugin mcdropdown. Here is the data structure from PHP: a nested array of arrays : Array ( [0] => Array ( [fullpath] => ../foil/alphanumeric/ [depth] => 0 ) [1] => Array ( [fullpath] => ../foil/alphanumeric/letters/ [depth] => 1 ) [2] => Array ( [fullpath] => ../foil/alphanumeric/numbers/ [depth] => 1 ) [3] => Array ( [fullpath] => ../foil/alphanumeric/numbers/symbols/ [depth] => 2 ) ) Basically, I took the excellent answer from this question on SO, modified it a bit : global $fullpaths; // $fullpaths contains the above data structure in print_r $result = ''; $currentDepth = -1; while(!empty($fullpaths)) { $currentNode = array_shift($fullpaths); if($currentNode['depth'] > $currentDepth) { $result .='<ul>'; } if($currentNode['depth'] < $currentDepth) { $result .=str_repeat('</ul>', $currentDepth - $currentNode['depth']); } $result .= '<li>'. $currentNode['fullpath'] .'</li>'; $currentDepth = $currentNode['depth']; if(empty($fullpaths)) { $result .= str_repeat('</ul>', 1 + $currentDepth); } } print $result; and got the following output: <ul> <li>../foil/alphanumeric/</li> <ul> <li>../foil/alphanumeric/letters/</li> <li>../foil/alphanumeric/numbers/</li> <ul> <li>../foil/alphanumeric/numbers/symbols/</li> </ul> </ul> </ul> Which cannot be accepted by the mcdropdown jQuery plugin, it expects something like this: <li rel="1"> 'Alphanumeric' <ul> <li rel="2">'Letters'</li> <li rel="3">'Numbers' <ul> <li rel="4">'Symbols'</li> </ul> </li> </ul> </li> To be frank, I don't quite understand how the answer from that question works, I have been trying to modify that solution to cope with my situation, but still failed. Any help and suggestion is much appropriated in advance.

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  • Where is cck "number of values" data stored?

    - by calebthorne
    I have a cck field that needs to allow a different number of values depending on the role of the currently logged in user. I'd like to find where the "number of values" data is stored for a cck field so that it can be dynamically changed when the node edit form is displayed.

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  • Encyption in DATA access block

    - by Sathish
    I am using enterprise library DATA access block in my application and now i want to Encrypt the connection string and store it in the Config file and consume it in my application after decrypting the same. How can i do this

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