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  • Access Creates new file every time I Compact & Repair

    - by NickSentowski
    It didn't always do this, but ever since I split my database and made the front-end an ACCDE file, any time I try to compact and repair either file, a new file called "Database 1" is generated and my original file size doesn't change. Is this normal? My ACCDB is roughly 20MB, and my ACCDE is just over 1M after being used the first time. Before opening, the ACCDE was only 600k (I have lots of forms and queries, and regularly store PDF attachments.

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  • True or False: Good design calls for every table to have a primary key, if nothing else, a running i

    - by Velika
    Consider a grocery store scenario (I'm making this up) where you have FACT records that represent a sale transaction, where the columns of the Fact table include SaleItemFact Table ------------------ CustomerID ProductID Price DistributorID DateOfSale Etc Etc Etc Even if there are duplicates in the table when you consider ALL the keys, I would contend that a surrogate running numeric key (i.e. identity column) should be made up, e.g., TransactionNumber of type Integer. I can see someone arguing that a Fact table might not have a unique key (though I'd invent one and waste the 4 bytes, but how about a dimension table?

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  • How can I unattach an element from another element in the XAML tree?

    - by Edward Tanguay
    In my Silverlight application, I load all the images I need at application start and store them in a dictionary. Then as I need them I pick them out of the dictionary and attach them in XAML trees etc. However, I have the problem that if I attach an Image object to a Grid, then want to use that image again, it tells me: The image element is already a child of another element. How can I run through my dictionary and "detach all images from parent XAML elements"?

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  • How many colunms in table to keep? - MySQL

    - by Dennis
    I am stuck between row vs colunms table design for storing some items but the decision is which table is easier to manage and if colunms then how many colunms are best to have? For example I have object meta data, ideally there are 45 pieces of information (after being normalized) on the same level that i need to store per object. So is 45 colunms in a heavry read/write table good? Can it work flawless in a real world situation of heavy concurrent read/writes?

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  • C vs. C++ for performance in memory allocation

    - by Andrei
    Hi, I am planning to participate in development of a code written in C language for Monte Carlo analysis of complex problems. This codes allocates huge data arrays in memory to speed up its performance, therefore the author of the code has chosen C instead of C++ claiming that one can make faster and more reliable (concerning memory leaks) code with C. Do you agree with that? What would be your choice, if you need to store 4-16 Gb of data arrays in memory during calculation?

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  • how to generate String difference vectors?

    - by SWKK
    Hi Guys, a bit of a vague question but I am looking for pointers as to how can I generate String diff vectors in C++. The scenario is such that given a paragraph I want to store the various differences(Edit, cut copy paste etc.) it goes through in a draft mode to review Audit history. Any hints in this regard will be really appreciated.

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  • error in fetching url data

    - by Rahul s
    from google.appengine.ext import webapp from google.appengine.ext.webapp import util from google.appengine.ext import db from google.appengine.api import urlfetch class TrakHtml(db.Model): hawb = db.StringProperty(required=False) htmlData = db.TextProperty() class MainHandler(webapp.RequestHandler): def get(self): Traks = list() Traks.append('93332134') #Traks.append('91779831') #Traks.append('92782244') #Traks.append('38476214') for st in Traks : trak = TrakHtml() trak.hawb = st url = 'http://etracking.cevalogistics.com/eTrackResultsMulti.aspx?sv='+st result = urlfetch.fetch(url) self.response.out.write(result.read()) trak.htmlData = result.read() trak.put() result.read() is not giving whole file , it giving some portion. trak.htmlData is a textproparty() so it have to store whole file and i want that only

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  • Authorization security of ASP.NET Forms authentication

    - by Tomi
    I'm using Forms authentication in ASP.NET MVC website and I store user account login name in AuthCookie like this: FormsAuthentication.SetAuthCookie(account.Login, false); I want to ask if there is a possibility that user on client side will somehow manage to change his login name in AuthCookie and thus he will be for example impersonated as someone with higher privileges and authorized to do more actions than he is normally supposed to have. Also is it better to save in this cookie user account login name or user account ID number?

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  • Efficient Array Storage for Binary Tree

    - by Sundararajan S
    We have to write the nodes of a binary tree to a file. What is the most space efficient way of writing a binary tree . We can store it in array format with parent in position 'i' and its childs in 2i,2i+1. But this will waste lot of space in case of sparse binary trees.

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  • onchange of FilteringSelect do not work

    - by vusan
    Same code I'm using of dojo documentation just downloaded code work fine but onchange event do not fire on my project. I have make it to work by firing onblur onBlur: function(){alert(3)} What thing may cause onchange event not fire? var filteringSelect = new FilteringSelect({ id: "stateSelect", name: "state", value: "CA", store: stateStore, searchAttr: "name", onChange: function(){alert(3)} }, "stateSelect");

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  • Rendering suggested values from an ext Combobox to an element in the DOM

    - by qui
    I have an ext combobox which uses a store to suggest values to a user as they type. An example of which can be found here: combobox example Is there a way of making it so the suggested text list is rendered to an element in the DOM. Please note I do not mean the "applyTo" config option, as this would render the whole control, including the textbox to the DOM element.

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  • Memcache vs MySQL in memory

    - by TimK
    I have a database that won't grow much in size. It's current size is about 1 GB. Achieving the fastest performance is desired. Question: When should I use Memcache vs simply using MySQL Innodb ability to store all my content within RAM (innodb_buffer_pool_size)?

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  • Sequential (comb) GUIDs for Oracle

    - by Eyvind
    We are in the process of switching from the C# Guid.NewGuid() random-ish guid generator to the sequential guid algorithm suggested in this post. While this seems to work well for MS SQL Server, I am unsure about the implications for Oracle databases, in which we store guids in a raw(16) field. Does anyone have any insight as to whether this algorithm would be good for creating sequential guids for Oracle as well as for MS SQL Server, or if a different variant should be used. Thanks!

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  • What is the pros and cons in using FormsAuthentication to persist login cookie?

    - by stacker
    What is the pros and cons in using FormsAuthentication to persist a login cookie? I see that StackOverflow ignore FormsAuthentication and instead implemented a different strategy to persist a login cookie. Pros Out of the box implementation for persistent login feature. Cons The login feature depends on the machine key which mean that I need to make sure that the machine key is the same on all the servers in the farm. The cookie contains wired encrypted values that don't really make sense to store in the cookie.

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  • jquery - Getting the second level parent of an element

    - by j-man86
    I am trying to retrieve the parent of an element's parent (grandparent?). I want to find that grandparent, then find a tag in that element, then store that text as a variable to publish elsewhere on the page. I've been trying to use the parent() function but without success. Here's the code I tried: $('.mixPlayCell a').click( function() { var title = $(this).parent().get(0).parent().get(0).text(); alert(title); }); Thanks!

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  • Authorization engine in java

    - by eltados
    In the course of my work i need to develop an authorization engine ( i'm already authenticated and i check access of a user to an action ) in order to store all the authorization logic inside a same place and be able to reuse it and i have created the mini library. http://github.com/eltados/canny what do you think about it? Is there any lightweight Authorization engine library i could have a look at?

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  • FTP a text file to a server using VBA in Excel

    - by Anindya
    I have an Excel worksheet where the user enters certain data, which I want to store in a text file and upload to a server using FTP. One site suggested adding a reference to "Microsoft Internet Transfer Control" and then define an "Inet" object to do the FTP. However, I am unable to find a reference with this name in "Tools - References" in the VB Editor. Does anyone know of a solution for this problem? Thanks in advance.

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  • How to create layout for tower made of blocks

    - by sasquatch90
    I have a tower built from blocks like this : Whole Tower is an array of Towers. Each Tower contains Box[] array containing single Box'es.What layout should I use for this and can you give me any tips on how to create it ? Would it be easier if I would create Grid[][] containing Box'es? But I guess I can't store Box object inside Grid array. I'm just totally confused :/

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  • HTML5 applicationCache in local development

    - by jesper
    I'm experimenting with application cache based on this example: http://html5demos.com/html5demo.manifest This example works fine in ff, but when I create analogous site (almost identical) I get only status "UNCACHED (numeric value 0) -- The ApplicationCache object's cache host is not associated with an application cache at this time." I work on xampp and I've set correct mime-type. When the page is loading ff "is asking to store data on your computer for offline use" and when I show Tools - Options - Advanced - Network - Offline data there is localhost but with 0B size.

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