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  • Is it possible to write a database view that encompasses one-to-many relationships?

    - by Brandon Linton
    So I'm not necessarily saying this is even a good idea if it were possible, since the schema of the view would be extremely volatile, but is there any way to represent a has-many relationship in a single view? For example, let's say I have a customer that can have any number of addresses in the database. Is there any way to list out each column of each address with perhaps a number as a part of the alias (e.g., columns like Customer Id, Name, Address_Street_1, Address_Street_2, etc)? Thanks!

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  • ByPassing Google App Engine SDK to allow black listed classes

    - by ivanceras
    Is there a way to circumbent google app engine sdk to allow the usage of classes that are not present in the GAE JRE white list? I know the app that I would be building will not run in appspot, but at least in my development server, I need to access a postgresql database(java.net.socket.*) and generate some files(java.io.FileWriter) in my development server.

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  • Best way to laod a large file into arraylist in java

    - by user1730833
    I have a file whose size is about 300mb i want to read the contents line by line and then add it into arraylist. So i have made an object of array list a1 , then reading the file using bufferedreader , after that when i add the lines from file into arraylist it gives an error Exception in thread "main" java.lang.OutOfMemoryError: Java heap space. Please tell me what should be the solution for this.

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  • Close socket handle utility

    - by Boris
    Hi I need a utility to close server socket handles open by the process, on windows. I cannot use tcpview as it does not close the server socket (ESTABLISHED state). Process explorer comes close with its handle list and "close handle" option, but it only gives the handle path (like \Device\Afd) and if application has open many such sockets I cannot tell which handle I would like to close. Any idea?

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  • Can I do full text searches with jquery Autocomplete ?

    - by Jordie
    Hi, I want to be able to search a list of full names. The autocomplete demos I have seen have all searched from the beginning. Thats no good as I want matches on surname too. I can live without full text search if it at least follows word boundaries. Sorta like the tag search here. Hows that done? Cheers

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  • How to initiate JavaScript Callback with MVC2 using RenderAction

    - by Zacho
    I am building a dashboard where I am iterating through a list of controls to render, and I need to initiate a general callback both after each control and after they are all completed. I was curious what the best way to handle this is. I can get the control specific callback fired off by placing myUserControlCallback(); in the user control itself. I'm just not sure how to run something like allControlsRendered();. Any ideas?

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  • MS Access 07 - Q re lookup column vs many-to-many; Q re checkboxes in many-to-many forms

    - by TBinLondon
    Hello, I'm creating a database with Access. This is just a test database, similar to my requirements, so I can get my skills up before creating one for work. I've created a database for a fictional school as this is a good playground and rich data (many students have many subjects have many teachers, etc). Question 1 What is the difference, if any, between using a Lookup column and a many-to-many associate table? Example: I have Tables 'Teacher' and 'Subject'. Many teachers have many subjects. I can, and have, created a table 'Teacher_Subject' and run queries with this. I have then created a lookup column in teachers table with data from subjects. The lookup column seems to take the place of the teacher_subject table. (though the data on relationships is obviously duplicated between lookup table and teacher_subject and may vary). Which one is the 'better' option? Is there a snag with using lookup tables? (I realize that this is a very 'general' question. Links to other resources and answers saying 'that depends...' are appreciated) Question 2 What attracts me to lookup tables is the following: When creating a form for entering subjects for teachers, with lookup I can simply create checkboxes and click a subject for a teacher 'on' or 'off'. Each click on/off creates/removes a record in the lookup column (which replaces teacher_subject). If I use a form from a query from teacher subject with teacher as main form and subject as subform I run into this problem: In the subform I can either select each subject that teacher has in a bombo box, i.e. click, scroll down, select, go to next row, click, scroll down, etc. (takes too long) OR I can create a list box listing all available subjects in each row but allowing me to select only one. (takes up too much space). Is it possible to have a click on/off list box for teacher_subject, creating/removing a record there with each click? Note - I know zero SQL or VB. If the correct answer is "you need to know SQL for this" then that's cool. I just need to know. Thanks!

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  • Convert object to enum C#

    - by Shawn Mclean
    I have binded a list of enum to a combobox. Now I want to get the SelectedItem return the enum, which currently returns it as type object. How do I convert this object to my enum? My framework is silverlight on windows-phone-7

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  • How can i implement the NULL Object Design Pattern in a generic form?

    - by Colour Blend
    Is there a way to implement the null object design pattern in a generic form so that i don't need to implement it for every buisness object. For me, there are two high level classes you'll need for every business class. One for a single record and another for a list. So i think there should be a way to implement the NULL Object design pattern at a high level and not have to implement it for every class. Is there a way and how please?

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  • How to get only USB devices not all the devices in the system

    - by new
    Grretings to all, I get devices list from the system. but i am not sure that if i want to get only the usb devices currently in the system means , What class i must specify in the below code ( DWORD Flags ) hDevInfo = SetupDiGetClassDevs(&GUID_DEVINTERFACE_USB_DEVICE, 0, // Enumerator 0, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE );

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  • How do I generate site map from MySQL database

    - by mathew
    Hi all I am new to Php and working on a project which needs to generate sitemaps from URLS which stored in MySQL database. how can I do this?? Is there any one have any idea?? site maps can be in php extension too and only requirement is list of sites display in each page

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  • Reading ini file in C#

    - by pm_2
    I am trying to read an ini file that has the following format: SETTING=VALUE SETTING2=VALUE2 I currently have the following code: string cache = sr.ReadToEnd(); string[] splitCache = cache.Split(new string[] {"\n", "\r\n"}, StringSplitOptions.RemoveEmptyEntries); Which gives me a list of settings, however, what I would like to do is read this into a dictionary. My question is, is there a way to do this without iterating through the entire array and manually populating the dictionary?

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  • linq include with condition

    - by user276640
    i have function public Menu Details(int? id) { return _dataContext.Menu.Include("ChildMenu").FirstOrDefault(m => m.MenuId == id); } now i need to add condition to child list ChildMenu something like fieldname=id. how can i do it?

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  • Drag and drop between ListBox items and Grid cells in WPF?

    - by AJ
    Hi There is a list box with some items in it. Also there is a grid with 3x3 matrix. The user will be dragging an item and dropping on one the cells of grid. Most of the samples I found are about dragging-dropping from one listbox to another listbox. But I want to drop in one cell of grid. How can I achieve this? Please advise. thanks PJ

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  • C#/WebService/ExactTarget - send email to single subscriber without TriggeredSend

    - by Max Gontar
    Hi! There is an email service ExactTarget with web service API. There are samples (in php though) for sending email to whole list instantly, or to single subscriber by triggered action. It's pretty hard to get in it's documentation, and I couldn't find explanation how to send email to a single subscriber instantly without having some triggering actions. Any help or advice will be great. Thanks.

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