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• [NSString hash] gives me negative value

  - by Thierryb

  Hello, I am generating a hash from a NSString, using [myString hash] and the result I get is a negative value. The Apple's documentation is saying : (NSUInteger)hash Return Value An unsigned integer that can be used as Any idea ? Thanks

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• Retrieve Campaigns Microsoft Dynamic CRM 3.0

  - by lidermin

  Hi there, does anybody knows how to get (programmatically) the list of campaigns on Microsoft CRM 3.0 (using the webservice CRM Service) ?? Any help or documentation link would be appreciated. Thanks in advance.

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• Cascading Dropdown List

  - by user333831

  I am working on a web app and trying to code a form with two dropdown lists. The list in the second dropdown will be dependent on the selection from the first one. The task itself isn’t too complicated except that once the first selection is made, I need to make a database call to pull the data for the second dropdown. This is where I am having difficulty. Both lists are in fact populated from a database. I am working on this in a python script and have been trying to do this w/ an onChange javascript function. The web app is built in Zope and page templates may be an option along w/ the python scripts.

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• Is there a size limitation for an Access DB destination in SSIS?

  - by Adam V

  I'm creating an SSIS package, which will read through a user's SQL database and populate the tables in an Access database. However, for the largest user databases, I start getting errors around the time the Access file reaches approx. 2 GB. Has anyone run into this problem? Is this a size limitation for this operation? More information: I'm getting the error code 0xC020907B, but no additional information that I can see. Error: 0xC0209029 at , [733]: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR. The "input "OLE DB Destination Input" (746)" failed because error code 0xC020907B occurred, and the error row disposition on "input "OLE DB Destination Input" (746)" specifies failure on error. An error occurred on the specified object of the specified component. There may be error messages posted before this with more information about the failure.

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• How to handle dynamic site localizations?

  - by James Simpson

  I've got a website that is currently all in english. It is an online game, so it has a bunch of different pages with static text, as well as a lot of content in a database. I am trying to expand more globally and am gearing up to release some localizations of the site. However, I'm not sure about the best way to go about setting this up so that it'll be the easiest for me to manage and the easiest for users to use as well. Should I be storing the translated texts in a database, or should this be done in a completely different way? If it matters at all, the site is written in PHP and uses MySQL.

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• C++ STL containers

  - by cambr

  Different STL containers like vector, stack, set, queue, etc support different access methods on them. If you are coding for example in Notepad++ or vim, you have to continuously refer to the documentation to see what all methods are available, atleast I have to. Is there some good way of remembering which container supports which methods??

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• Do Java annotations add notation or functionality?

  - by cafe

  Are Java annotations used for adding functionality to Java code besides just adding documentation about what's going on in the code? What's the most advanced/complex functionality you could add to your code through an annotation?

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• How can an SQL query return data from multiple tables

  - by Fluffeh

  I would like to know how to get data from multiple tables in my database, what types of methods are there to do this, what are joins and unions and how are they different from one another? When should I use each one compared to the others? I am planning to use this in my (for example - PHP) application, but don't want to run multiple queries against the database, what options do I have to get data from multiple tables in a single query? Note: I am writing this as I would like to be able to link to a well written guide on the numerous questions that I constantly come across in the PHP queue, so I can link to this for further detail when I post an answer. The answers cover off the following: Part 1 - Joins and Unions Part 2 - Subqueries Part 3 - Tricks and Efficient Code

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• Jsp cache problem

  - by idiotgenius

  I use javascript and css to build a multi-level drop down menu with following markups: <ul> <li>menu item 1</li> <ul> <li><a href="#">sub menu menu item 1</a></li> ................. This markup is generated by a custom JSTL tag <mui:menu .../> which loads menu data from a database. I hope my jsp page can behave like this: if menu data has not changed since last time I visited the page, just use browser's cache otherwise load from database... How can I do it? I don't know much detail about cache mechanism.

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• std::set<T>::erase(key). What if key isn't there?

  - by Armen Tsirunyan

  if I erase an element from an std::set and pass the key, not the iterator, and the key isn't in the set right now, will an exception be thrown? The thing is every second sentence in the MSDN documentation says: "this does blah blah, but it doesn't conform to the standard". So I need to know the standard behaviour. I just couldn't find it in the standard. Redirecting to the relevant clause will do as well. Thanks.

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• aspnet_regsql questions and users and role

  - by Alexander

  I spend quite some hours banging my head against the wall trying to set up the aspnet membership / roles tables in my SQL server database instead of having them exist inside the App_Code/ASPNETDB.MDF file because that file wasn't working correctly on my host. I eventually figured out the problem by following Scott's gu here and was able to resolve it by running the aspnet_regsql.exe utility and creating a connection string for LocalSqlServer. The ridiculous part about it is that after running the aspnet_regsql and upload my database to my webhost all of my users and role that I have already created is gone. The user, membership, role, etc is gone. I can't populate this using the Web Site Administration Tool as it's not visual studio now. So what is the easiest way to populate the user, role, etc to my SQL Server as I now have dbo.aspnet_Application, dbo.aspnet_Paths, dbo.aspnet_Roles, etc...etc...

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• Using PreferenceScreen/PreferenceActivity to configure home screen widgets

  - by hpe

  Hi, I'm creating an appwidget, where the user should be able to configure it before it is added to the home screen. To me, PreferenceScreen/PreferenceActivity seems perfect for the task, but the intention behind these classes seem to be configuring an actual application. I've searched, but cannot find any documentation or tutorials which covers this question. Is it possible to configure a widget using these classes, or is the only alternative to configure it through an ordinary view? Thanks for any answers!

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• Saving data that is in a table efficiently and also is easy to retrieve and echo back out

  - by Harry

  Information I currently have a table which image is below, Problem I have made this table using ul & li Here is the code http://jsfiddle.net/8j2qe/1/ Question What would be the best way of storing the data in the image and easily displaying it? Keeping in mind that each column can only have 1 entry. Thank you! And any questions will be answered ASAP! EDIT Sorry, I dont think I was clear enough in my initial question. What I am asking is, what is the best way to store and then display this type of data. I want to DISPLAY data from my database to show like it would in the image. Should I have a column in my database for each column on the table, then say either A,B,C or D depending on what column it is in but then how would I display it using PHP in my code provided? Im struggling to find a good way of explaining this, I am sorry.

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• UTF8 issues on Linux

  - by user363808

  Hi, I have some code that fetches some data from the database, database codepage is UTF8. When I run the code on a linux box, some characters come out as question marks (?) but when I run the same code on a windows server, all characters appear correctly. When I do: $ $LANG Following is returned en_SG.UTF-8 en_SG is something that doesn't look correct, it should be en_US but the latter part of the returned string is UTF-8 which is good. Is there anything else that I can look into to fix the character corruption problem?

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• How to use SQLiteOpenHelper without or less restrictive use of Context?

  - by Pentium10

  If you extend SQLiteOpenHelper, for the Constructor you have to use a Context. I am wondering if there is a way to leave this out, and be able to work with database tables without a Context. Or at least be least restrictive, I mean a way of project/class structure that will make history the several context passings I have to do now. As it is my application has several level of classes, chained in each other, and there are a few that connects to the database, but have no whatsoever influence on the interface, so they don't actually need the Context. Are you creating your classes in the way that you pass each time a Context to them? If not, how you do, how you reuse a Context in a short class?

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• How check user online status in web site?

  - by Milan Sanda Sri

  how can i get know when user online and offline. when one user log in to my site. i set a script to change database table field of that user, as a boolean to indicates users online states. but my problem is if he/she leaved my site without clicking the log-out button, then my script does not work and database show he/she as a online user. please give me any sugestion to fix this. i have no idea what to do! i check some answers on this topic, but most of says asnwer lie this -- if last activity time is less than now+15 minutes then user is online, offline otherwise. but i have seen some social networking sites shows that we have gone offline, just we close the browser. how they do that ?

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• Getting started with SQLite (Android)

  - by Tarmon

  Hey Everyone, I have limited SQL background, basically a small amount of manipulation through HTML and mostly with pre-existing databases. What I am trying to do is set up a database that will store time information for bus routes. So basically I have different routes with stops for each route and then a list of times that the bus arrives at each stop. Here is an example of a table of times from their website: Link. I am wondering what would be the best way to layout my database/tables? Also what is the purpose of the _id field in each table? Thanks, Rob! P.S. Sorry if my lack of knowledge on the subject has caused me to post a duplicate question.

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• c# passing something from child form to parent

  - by Alan Bennett

  hi guys. so i have this form and on it is a combo box populated from a database via a SQL method. and i have another form which allows us to maintain the database table etc. so i make a new instance of the second form doing: Form1 frm = new Form2; frm.show(); once i have done what ever i wanted to do on the second form and i close it, i need to somehow trigger an event or something which will refresh the combo box and the code behind it. i was thinking of some onchange or focus event for the whole form, the problem is i have 5 of these combo boxes and running all the SQL again. i also thought of passing somesort of variable thro but then i would still need an event for that. any ideals would be awesome

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• String Storage and Retrieval in Android

  - by dweebsonduty

  I have a program that has items with 3 attributes. Name(String) : Count(String) : Amount(String) Currently I am writing the database when someone is trying to access a section then reading from the database. The writing is taking too long. So my question is how can I perhaps create a nested array where I can say if name = carrot then print carrot['count'] and carrot['amount']. I am very new to Java so some sample code would be great. Or any other suggestions that you may have as far as tackling this issue.

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• How to iterate on boost::mutable_queue

  - by Tristram Gräbener

  Hello, I need a priority queue where I can increase or decrease the priority key. So boost::mutable_queue seemed perfect despite the lack of documentation. The problem is that I need to iterate at some point over all the elements in the queue. How can I do that? Or is there an othe data structure that would work (preferably in boost)?

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• hibernate connection tomcat

  - by willson albert

  I was working in a web site (production) in Tomcat 7, so now I created a copy of this website and change the hibernate.cfg.xml to work with another database ( testing ). <property name="hibernate.connection.url">jdbc:mysql://127.0.0.1:3306/test</property> <property name="hibernate.connection.username">fake</property> <property name="hibernate.connection.password">fake</property> However, when I open the new new site, everything is ok, but, is still working with the production database even when I changed the connection string. Anybody knows if I need to change another thing?. I missing something?. I am quite new in tomcat. Thanks in advance.

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• log4net - getting appenders specific to only one logger

  - by andreav

  I'm looking for a way to get all appenders attached to one logger instance. I tried: Hierarchy hierarchy = LogManager.GetRepository() as Hierarchy; hierarchy.GetAppenders() as per documentation this returns all appenders for all loggers currently configured. When I try this: LogManager.GetLogger("MyLoggerName").Logger.Repository.GetAppenders(); I get the same result. I would like to retrieve only appenders attached to one logger ("MyLoggerName" in this case) Were am i wrong? Thank you.

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• WebService Security

  - by LauzPT

  Hello, I'm developing an project, which consists in a webservice and a client application. It's a fair simple scenario. The webservice is connected to a database server, and the client consumes from the webserver in order to get information retrieved from the database. The thing is: 1. The client application can only display data after a previous authentication; 2. All the data transferred between Web Service and clients must be confidential; 3. Data integrity shouldn’t be compromised; I'm wondering what is the best way to achieve these requirements. The first thing I thought about, was sending the server a digital signature containing a client certificate, to be stored in the server, and used as comparison for authentication. But I investigated a little about webservice security, and I'm no longer certain that this is the best option. Can anyone give me an opinion about this? TIA

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• What is sadscript? Can I use it in vb.net? Why hasn't anyone I have asked heard of it?

  - by Cyclone

  The title is my question. Basically, I have heard people speak of it before, I understand it to have something to do with vb6, and I know it lets the user code for the application, but I am unable to determine if it is a separate library or built into vb, and I cannot find documentation for it anywhere. Thanks for the help!

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• When and How to Delete temporary uploaded but uncommitted files in ASP.NET

  - by slowlycooked

  I'm using EO Ajax toolkits for upload files, the file is uploaded to server. when user click save then it will update the database for what been uploaded or changed. Now i need a clean up process that when user uploaded a file to server, but then close his/her browser before click the save button. in this case how should i programe so that the file user just uploaded is deleted, because it's now useless and not assosiated with any database. thanks. maybe i should upload all files to a temp folder, only when user click saver the file can be moved to target folder, at each session end the temp folder is get deleted.

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