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• Is it better to store an NSArray of NSManagedObjects or NSManagedObjectIDs?

  - by Kevin

  In my application I need to keep track of a list of objects that are being displayed. Right now I have an NSArray with all of the NSManagedObjects. Would I be better off to store the ObjectIDs and then only request the object when I need it? I am mainly concerned about memory at this point.

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• 42S22 SQL error: Column not found, why?

  - by Vincenzo

  This is my SQL: SELECT `tbl`.*, 123 AS `test` FROM `tbl` GROUP BY `test` It works when I run it directly in MySQL. But PDO says: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'test' in 'field list' Why so? How to cure this problem? I'm using Zend_Db.

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• create db,table and insert data and retrive it in android.

  - by raji

  hi, I am new to android. Can anyone please help me to create db ,table and insert data and retrive it make it display in list.I am really in need of your help.

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• Listing C Constants/Macros

  - by ZJR

  Is there a way to make the GNU C Preprocessor, cpp (or some other tool) list all available macros and their values at a given point in a C file? I'm looking for system-specific macros while porting a program that's already unix savvy and loading a sparse bunch of unix system files. Just wondering if there's an easier way than going hunting for definitions.

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• strip () and get value

  - by mandnd

  I have a html list that looks like this: animals (45) houses (36) computers (96) I want to get all the values inside those () and make like $sum = 45+36+96; How can I do that? Thanks

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• Interacting with Internet Explorer's blacklist

  - by Tom

  I have a list of 100,000 domains and I need to identify which ones are blocked by IE for phishing, malware, etc. Are there any applications that interact with IE or solutions that can help me solve this problem?

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• When to use a HashTable

  - by ammed

  In C# I find myself using a List, IList or IEnumerable 99% of the time. Is there a case when t would be better to use a HashTable (or Dictionary in 2.0 and above) over these?

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• Is that possible to get the key Relationship avilable in my DataBase using query in sql server?. how

  - by Ayyappan.Anbalagan

  I have many table in my database it contain many key relation. i need to list out the table and its corresponding key name and the relationship table.

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• run multiple webservices at a time

  - by Prajakta

  Hello, I have written a webservice which is taking URL as an input and producing a JSON respone. My problem is that now I have list of 1000 URLs and want to execute maximum threads of Webapplications to get output. Like I want to execute 100 instances of webservice at a time to get response.Please can anybody give some guidance how can I do it using java. Thank you in advance

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• Maintain state of an ASP.NET page

  - by user279521

  Hi, what is your preferred method to maintain state of an asp.net page, if it is a public website (involving shopping cart, wish-list etc). I am in the process of designing a website that will need to ensure that the user is not able to tamper with the state (such as delete cookies etc).

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• What c++ function is used to get random values?

  - by eter

  What function should I use to get random values (string values from a list) in c++ (or c)? Can you give me a example of this function?

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• How to retrieve from two tables with same foreign key repeated more than once?

  - by Sarenya

  How to display the data of tables that are linked by a primary key and foreign key where the foreign key of the data repeats? For ex. I have two tables, ParentTable and Childtable. The primary key of ParentTable acts as the foreign key of ChildTable. There are more than one record with same ParentId in ChildTable. How to retrieve them and display in a single Grid or List or any type of view?

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• Links pointing to a page

  - by Mio

  I know this is not a programming question, but I couldn't think of where else to ask. Does google or anybody else have a feature to let you see the list of sites pointing to a given link?

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• How can I import color schemes into Visual Studio 2010?

  - by Andrew

  I recently came across this website: http://studiostyles.info, which contains a list of color schemes that people have already created. However, I can't find instructions on how to import them into Visual Studio 2010, does anyone know how? PS: I am sorry, if this question has been asked but I cannot find an answer, through search.

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• All possible types of interview questions

  - by halivingston

  A lot of tech interviews asks these "kinds" of questions, so I thought I'd make a list for myself and others: (1) Linked Lists (2) Strings (3) Trees (4) Bitwise Manips (6) Recursion (I hate these ones, I can never get these, any tips?)

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• Is existed web markup languages with possibility insert sql query?

  - by MercurieVV

  Actually what I want - simple DB with simple User Interface. Like MS Access, but for web and it can be without Dragn n Drop, but described with markup language. For example if I want to create list report, then i need to write something like: <table query="SELECT * from mytable"></table> It needed for simple data applications. In that kind application no programming logic required. Just working with DB. Changing DB data and showing it.

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• Better way to write this ?

  - by atif089

  any better way to write this ? $(this).parent().parent().find(" dd ul").toggle(); update.. I am trying to create a dropdown using the script here http://www.jankoatwarpspeed.com/post/2009/07/28/reinventing-drop-down-with-css-jquery.aspx however the script works only for one instance of list and my code works good for multiple instances. Just curious if there is another better way to get parent of a parent in jQuery

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• c# oracle problem

  - by user216112

  I am using c#.net with an Oracle database. I want an example of how a dropdown list will fetch values from database name. I want to know how to make an Oracle connection in c#. I have searched the net but have not got exactly what I require. plz add comment tag to understand me. Thank you

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• Creating Java Dialogs

  - by mike_hornbeck

  What would be the easiest way for creating a dialog: - in one window I'm giving data for envelope addressing, also set font type from list of sizes - when clicked OK, in the same window or in next window I get preview of how the envelope would look like with the given names, and used selected font size It should look similarly to this : Should I use Jdialog ? Or will JOptionPane will be enough ? The next step will be to choose color of font and background so I must keep that in mind.

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• I want to create an expression for querystrings, this stuff is hard!

  - by jkirkerx

  I want to extract some keywords out of a query string for a search application in asp.net. I decoded the url string first, so it's plain text I have this to start with, but I want to add a keyword group I'd like to trim off the stuff for pure words, but not sure if that's possible I also have a long list of possible query string value fields that I want to check against ?q= @q= ?qs= &qs=

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• FsUnit `should equal` fails on `Some []`

  - by SHiNKiROU

  When I run this FsUnit test with NUnit 2.6.3, let f xs = Some (List.map ((+) 2) xs) [<Test>] let test() = f [] |> should equal (Some []) I get: Result Message: Expected: <Some([])> But was: <Some([])> Result StackTrace: at FsUnit.TopLevelOperators.should[a,a](FSharpFunc`2 f, a x, Object y) The test fails even though the Expected and Actual in the message are the same. What happened?

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• Are Objective-C function names stored in text?

  - by thyrgle

  I don't remember where I heard about it, (I think I was searching up on how selectors worked and it ended up not being exactly the same as a callback function) and I can't confirm it. But more importantly than that, is there a way I could get a list of the function names from another application?

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• Git - rm equivalent for "add ."?

  - by Steve

  If you're using Git from the command line, is there a way to delete in one fell swoop all the files to be deleted in the Changed but not updated list? Rather than doing manual removes using wildcards.

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• How to deploy an application with firewall permissions on Mac?

  - by user264878

  I've bundled a jar file as a mac application using jar bundler. I'm now trying to create an installer for this app so that: 1) The application will be placed in the applications folder 2) The application is added to the list of permissible apps in Mac Application Level Firewall Also, I have several example files I would like to include with this application - what is the best way to make these available to the user. Someone suggested I have the mpkg file launch a dmg file which would contain these files, but this seems circuitous. Thanks

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• Testing instance variables from controllers with rspec

  - by Thiago

  Hi, I am trying to get the following spec to run: describe BlacklistController, "GET index" do it "should display the list of universally blocked numbers" do get :index debugger assigns[:blocked_numbers].should contain "190" end end Here's the action def index @blocked_numbers << "190" respond_to do |format| format.html end end And the failure simply says that assigns[:blocked_numbers} is nil. Why's that?

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