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• Fact table with multiple facts

  - by Jeff Meatball Yang

  I have a dimension (SiteItem) has two important facts: perUserClicks perBrowserClicks however, within this dimension, I have groups of dimensions based on an attribute column (let's call the groups AboveFoldItems, LeftNavItems, OnTheFlyItems, etc.) each have more facts that are specific to that group: AboveFoldItems: eyeTime, loadTime LeftNavItems: mouseOverTime OnTheFlyItems: doesn't have any extra, but may in the future Is the following fact table schema ok? DateKey SessionKey SiteItemKey perUserClicks perBrowserClicks eyeTime loadTime mouseOverTime It seems a little wasteful since only some columns pertain to some dimension keys (the irrelevant facts are left NULL). But... this seems like it would be a common problem, so there should be a common solution for this, right?

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• Vendor neutral SQL

  - by Sparafusile

  I'm currently working on a project for a web application that may be installed on several different servers with various software configurations. I want to make my application as flexible as possible by allowing the user to have various SQL servers installed. The problem is the SQL syntax used by any two server vendors does not match up. For a simple example, here is the same SELECT statement for MS SQL and MySQL: MS SQL - SELECT TOP 1 * FROM MyTable ORDER BY DateCreated DESC MySQL - SELECT * FROM MyTable ORDER BY DateCreated DESC LIMIT 1 Are there any standard way to abstract the statement creation for various vendors? Any online resources or books discussing this problem? Any hints or smart-alec remarks that I'd find useful? Further information: I'm writing my we application in vanilla ASP running on a Windows server. Thanks, Spara

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• .NET Thank you/confirmation page best practise

  - by sooty

  Hi, whats the best practise for implementing a confirmation page in .Net? I've used response.redirect("Thankyou.aspx") a lot in the past I've also used something like this for hiding form controls and outputting a message: outResult.Attributes.Remove("style") outResult.Attributes.Add("style", "display:block;") outEntry.Attributes.Remove("style") outEntry.Attributes.Add("style", "display:none;") For the above you have to consider post backs that may occur if the user click refresh though. Does anybody have a better option? thanks!

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• Removing duplicates from a Dojo FilteringSelect

  - by chrismacp

  Hi, I'm trying to remove duplicates from a Dojo FilteringSelect without changing the contents of the attached itemFileReadStore data store. I can't seem to find any information on how this is done, if it is indeed possible. I'm thinking I may have to extend the FilteringSelect Dijit and provide the functionality myself but I'm hoping to not have to. The reason I'm trying to remove duplicates with the FilteringSelect and not the data store is because I'm using the same data store with three instances of the FitleringSelect, each displaying different values from each row of the store.

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• Rails and image gallery: how to make it flexible?

  - by user305270

  Hy! In my app, every profile has a gallery and this gallery has images. They can have 1 or 1000 images, so when i show up the gallery i only need a part of the images, let's say 12 images. Then in my ajax gallery when, someone requests more images are loaded. This gallery is SEO, so, the main url is: "/profile-url/" and then, there are these urls too: "/profile-url/images/1" that loads the image with the id=1 in the database. The gallery have to show only 6 images per stack, so When i request the page with the image.id=64, only have to show from 60 to 72, and to select the 64, that is done with js. how may i add a request like this? and how to order them? thanks

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• Bulk get of child entities on Google app engine?

  - by dfrankow

  On Google App Engine in Python, I have a Visit entity that has a parent of Patient. A Patient may have multiple visits. I need to set the most_recent_visit (and some auxiliary visit data) somewhere for later querying, probably in another child entity that Brett Slatkin might call a "relationship index entity." I wish to do so in a bulk style as follows: 1. get 100 Patient keys 2. get all Visits that have any of the Patients from 1 as an ancestor 3. go through the Visits and get the latest for each Patient Is there any way to perform step 2 in a bulk get? I know there is a way to bulk get entities from a list of keys, and there is a way to match a single entity by its ancestor.

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• How to check if a DateTime range is within another 3 month DateTime range .NET 3.5 C#

  - by Jamie

  Hi I have a Start Date and End Date per record in a db. I need to check to see where the time period falls in a 2 year period broken into two lots of quarters then display what quarters each record falls into. Quarter 1 includes June 09, Jul 09, Aug 09 Quarter 2 includes Sept 09, Oct 09, Nov 09 Quarter 3 includes Dec 09, Jan 10, Feb 10 Quarter 4 includes Mar 10, Apr 10, May 10 Quaretr 5 includes Jun 10, Jul 10... e.g. 01/10/09 - 01/06/10 would fall into quarters 2, 3, 4 & 5 I am very new to .NET so any examples would be much appreciated.

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• Flex, can't custom style the tooltip

  - by touB

  I'm having trouble changing the font size of my TextInput tooltip. The text input looks like this: <s:TextInput id="first" toolTip="Hello"/> then I create a style like this: <fx:Style> @namespace s "library://ns.adobe.com/flex/spark"; @namespace mx "library://ns.adobe.com/flex/halo"; mx|ToolTip { fontSize: 24; } </fx:Style> but absolutely nothing happens. Any idea what I may be doing wrong?

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• SSIS process files from folder

  - by RT

  Background: I've a folder that gets pumped with files continuously. My SSIS package needs to process the files and delete them. The SSIS package is scheduled to run once every minute. I'm picking up the files in ascending order of file creation time. I'm building an array of files and then processing-deleting them one at a time. Problem: If an instance of my package takes longer than one minute to run, the next instance of the SSIS package will pick up some of the files the previous instance has in its buffer. By the time the second instance of teh package gets around to processing a file, it may already have been deleted by the first instance, creating an exception condition. I was wondering whether there was a way to avoid the exception condition. Thanks.

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• Does replacing statements by expressions using the C++ comma operator could allow more compiler opti

  - by Gabriel Cuvillier

  The C++ comma operator is used to chain individual expressions, yielding the value of the last executed expression as the result. For example the skeleton code (6 statements, 6 expressions): step1; step2; if (condition) step3; return step4; else return step5; May be rewritten to: (1 statement, 6 expressions) return step1, step2, condition? step3, step4 : step5; I noticed that it is not possible to perform step-by-step debugging of such code, as the expression chain seems to be executed as a whole. Does it means that the compiler is able to perform special optimizations which are not possible with the traditional statement approach (specially if the steps are const or inline)? Note: I'm not talking about the coding style merit of that way of expressing sequence of expressions! Just about the possible optimisations allowed by replacing statements by expressions.

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• Cannot use scp on Mac OS X

  - by Robert

  Hi all, when I try to copy any file with scp on Mac OS X Snow Leopard from another machine I get this error: scp [email protected]:/home/me/file.zip . Password: ... ---> Couldn't open /dev/null: Permission denied this is the output of "ls -l /dev/null": crw-rw-rw- 1 root wheel 3, 2 May 14 14:10 /dev/null I am in the group wheel, and even if I do "sudo scp..." it doesn't work. It's driving me crazy, do you have any suggestion? Thanx!

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• Is there a way to remove the source domain from the window title in an out-of-browser Silverlight 3

  - by Jacob

  We may not have the option to migrate over to Silverlight 4 right away, so I was wondering if anyone found a way to remove the source domain name from the window's title for out-of-browser Silverlight 3 applications. Our window title currently looks like this: "My App - localhost." Under Mac, I found the Info.plist file in the application bundle and found where you can set the Bundle name property as well as TrimmedSourceDomain. Unfortunately, when I clear the TrimmedSourceDomain property, the title looks like "My App -," and if I delete the property entirely, the application doesn't launch. I assume similar problems would occur under Windows. Have any of you found a workaround?

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• Memory leak when declaring NSString from ABRecordCopyValue

  - by Ben Thompson

  I am using the following line of code... NSString *clientFirstName = (NSString *)ABRecordCopyValue(person, kABPersonFirstNameProperty); The 'analyse' feature on Xcode is saying that this giving rise to a potential memory leak. I am not releasing clientFirstName at all as I have neither alloc or retain'd it. However, I am conscious that ABRecordCopyValue may not be returning an object as say a command like [NSMutableArray arrayWithArray:someArray] would which might mean I am indeed creating a new object that I control and must release. Keen to hear thoughts...

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• Return the name of the class instance with the highest 'someValue' instance variable

  - by Timbo

  I have a brand new Objective-C class called test. The test class has an instance variable called someValue, which contains an integer. I create 5 instances of the test class called aTest, bTest, cTest, dTest and eTest. The appropriate synthesize and property declarations for someValue are in place. Is there a clean way of returning the name of the class instance with the highest someValue value out of all the existing test class instances? The number of class instances may vary from the 5 in my example. Note I don't care what the value is, I just want to return the name of the class instance with the highest 'someValue' instance variable. I've tried a few NSMutable arrays however can only get the value not the name of the variable that contains it. Thanks in advance

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• InvalidOperationException when using soap client

  - by codymanix

  I've added as wsdl file using the add servece reference dialog in vs2008. MyService serviceproxy = new MyService(); When I instantiate the service proxy, I get an InvalidOperationException with the following text (translated from german): Could not find default endpoint element to the contract "ServiceName.ServiceInterface" in the service model refers client configuration section. This may be because: The application configuration file was not found or not an endpoint in the client element item is found, which corresponded to this contract. Where servicename is the name I give the service when I add it in vs2008 and ServiceInterface the interface which is automatically generated for it.

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• problems calling webservices through the https connection

  - by shivaji123

  i have done an application in BlackBerry which takes username & password with url link which is a link of server here i am calling some webservices but it is doing the connection in https so when i take the username password & url link & hit the login button it basically calls a webservice but then the application connecting to the webservice for ever & after some time i get the error massage something "unreported exception the application is not responding" .& then the application crashes out.Also i am using the SOAP client library . this is the piece of code synchronized (this) { try { _httpconn = (HttpConnection) Connector.open(url,Connector.READ_WRITE);//Connector.READ_WRITE //_httpconn =(StreamConnection)Connector.open(url); //System.out.println("-----------httpsconnection() PART--------------------"); _httpconn.setRequestMethod(HttpConnection.POST); //_httpconn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //System.out.println("-----------httpsconnection() PART- **-------------------"); _httpconn.setRequestProperty("SOAPAction", Constants.EXIST_STR); //System.out.println("-----------httpsconnection() PART-REQUEST -------------------"); _httpconn.setRequestProperty("Content-Type", "text/soap+xml"); //System.out.println("-----------httpsconnection() PART- CONTENT-------------------"); _httpconn.setRequestProperty("User-Agent", "kSOAP/1.0"); //System.out.println("-----------httpsconnection() PART-USER Agent-------------------"); String clen = Integer.toBinaryString(input.length()); _httpconn.setRequestProperty("Content-Length", clen); //System.out.println("-----------httpsconnection() Content-Length--------------------"); _out = _httpconn.openDataOutputStream(); //System.out.println(input+"-----------input--------------------"+url); _out.write(input.getBytes()); _out.flush(); // may or may not be needed. //int rc = _httpconn.getResponseCode(); int rc = _httpconn.getResponseCode(); if(rc == HttpConnection.HTTP_OK) { isComplete = true; _in = _httpconn.openInputStream(); msg = new StringBuffer(); byte[] data = new byte[1024]; int len = 0; int size = 0; while ( -1 != (len = _in.read(data)) ) { msg.append(new String(data, 0, len)); size += len; } responsData = msg.toString(); System.out.println("-----------responsData "+responsData); } if(responsData!=null) isSuccessful = true; stop(); } catch (InterruptedIOException interrIO) { //errStr = "Network Connection hasn't succedded. "+ //"Please check APN setting."; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Network Connection hasn't succedded. "+ "Please try again later."); } }); isComplete = true; System.out.println(interrIO); stop(); } catch (IOException interrIO) { System.out.println("-----------IO EXCEPTION--------- "+interrIO); //errStr = "Network Connection hasn't succedded. "+ //"Please check APN setting." ; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Network Connection hasn't succedded. "+ "Please try again later." ); } }); isComplete = true; System.out.println(interrIO); stop(); } catch (Exception e) { System.out.println(e); //errStr = "Unable to connect to the internet at this time. "+ //"Please try again later."; UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Unable to connect to the internet at this time. "+ "Please try again later." ); } }); isComplete = true; stop(); } finally { try { if(_httpconn != null) { _httpconn.close(); _httpconn = null; } if(_in != null) { _in.close(); _in = null; } if(_out != null) { _out.close(); _out = null; } } catch(Exception e) { System.out.println(e); UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { Status.show("Unable to connect to the internet at this time. "+ "Please try again later." ); } }); } } } } can anybody help me out. Thanks in advance

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• How a servlet can get the absolute path to a file outside of the servlet?

  - by WolfmanDragon

  We have been using System.getProperties("user.dir") to get the location of a properties file. Now that it has been deployed on Tomcat(via servlet), the System call is giving the location as tomcat and not at the location at where the properties file exist. How can we call the the properties file dynamically? Given: Tomcat is not the only way the app will be deployed We have no control on where the app may be placed. Relative paths will not work as that Vista is being used and Vista breaks relative paths. This must work on all OS, including(but not limited to) Linux, XP and Vista. EDIT I implied this, but in case I was not clear enough, I have no way of knowing the path String.

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• Php is stripping one letter "g" from my rtrim function but not other chars

  - by Chase

  I'm trying to trim some youtube URLs that I am reading in from a playlist. The first 3 work fine and all their URLs either end in caps or numbers but this one that ends in a lower case g is getting trimmed one character shorter than the rest. for ($z=0; $z <= 3; $z++) { $ythref2 = rtrim($tubeArray["feed"]["entry"][$z]["link"][0]["href"], '&feature=youtube_gdata'); The URL is http://www.youtube.com/watch?v=CuE88oVCVjg&feature=youtube_gdata .. and it should get trimmed down to .. http://www.youtube.com/watch?v=CuE88oVCVjg but instead it is coming out as http://www.youtube.com/watch?v=CuE88oVCVj. I think it may be the ampersand symbol but I am not sure.

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• this.optional() in jQuery validation method doesn't seem to work

  - by HiveHicks

  Hello, I've got a little problem here. I've got the following rule for one of my fields: StartDate: { required: isDelayed, dateRU: true } isDelayed() returns false, so I guess StartDate field should be optional. However if I check it inside my dateRU method: $.validator.addMethod( "dateRU", function(value, element) { return this.optional(element) || isValidDate($.trim(value)); }, "Date is incorrect" ); this.optional(element) always returns false for StartDate. I can't figure out what's wrong. Any ideas? UPD. Does optional() returns true only if element is not required AND IS EMPTY? 'Cause that may be my problem.

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• Notifying JMS Message sender (Web App) after message processed by Listener

  - by blob

  I have a Web application (Flex 4 - Spring Blaze DS - Spring 3.0) which sends out an JMS event to a batch application (Standalone java) I am using JMS infrastrucure provided by Spring (spring JmsTemplate,SimpleMessageListenerContainer,MessageListenerAdapter) with TIBCO EMS. Is there any way by which we can notify a web user once message processing is completed by listener. One of the way to send a response event which will be listened by web application; but how to address following scenario: User1 click on submit - which in turn sends a JMS message Listener on receiving message processes the message (message processing may take 20-30 mins to complete). Listener application sends out another JMS event "Process_complete" As this is a web application; there are n users currently logged into the application. so how to identify a correct user / what if user is already logged off? Is there any way to handle this? Please post your views.

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• How to deploy and configure many copies of an application to multiple domains on the same server

  - by Oren

  We are about to begin work on an application that will eventually be deployed many times on one server. I am hoping to build a nice interface so that one of my coworkers can easily create new deployments of this application. The idea is to create a wizard with a series of options that will configure basic properties of each particular copy of the app such as color scheme, domain name, etc. Each copy of the application may be further tweaked independently down the line. I would like to know what is the best way to manage the automatic creation of users, the updating of domain name info and the deploying of copies of an application, with the ability to maintain certain discrepancies between each of these copies (such as installed plugins, different CSS) as we update the application in the future. What I'm asking is extremely similar to the way StackExchange 1.0 functioned, where a user could configure several options and a customized version of the StackExchange would soon be up and running. How is this accomplished?

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• Performance - User defined query / filter to search data

  - by Cagatay Kalan

  What is the best way to design a system where users can create their own criterias to search data ? By "design" i mean, data storage, data access layer and search structure. We will actually refactor an existing application which is written in C# and ASP .NET and we don't want to change the infrastructure. Our main issue is performance and we use MSSQL and DevExpress to build queries. Some queries run in 4-5 minutes and all the columns included in the queries have indexes. When i check queries, i see that DevExpress builds too many "exists" clauses and i'm not happy with that because i have doubts that some of these queries skip some indexes. What may be the alternatives to DevExpress? NHibernate or Entity Framework? Can we build dynamic criteria system and store these to database in both of them ? And also do we need any alternative storage like a lucene index or OLAP database?

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• Are there built-in issue tracking and task management in IDEs that integrate into SourceForge, Googl

  - by Kai Sellgren

  Hi, This question may not be exactly programming related, but this is about development. I have been trying to find IDEs that support JIRA/Bugzilla so that I could simply integrate the IDE with SourceForge. I do not like to refresh my browser to see issues, bug reports, security problems, etc. I would like to send issues, resolve issues, right from the IDE. I am currently developing with NetBeans, but I see no ways of integrating into any of the services provided by SourceForge. Am I missing something?

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• problem adding a where clause to a T-sql LEFT OUTER JOIN query

  - by Nickson

  SELECT TOP (100) PERCENT dbo.EmployeeInfo.id, MIN(dbo.EmployeeInfo.EmpNo) AS EmpNo, SUM(dbo.LeaveApplications.DaysAuthorised) AS DaysTaken FROM dbo.EmployeeInfo LEFT OUTER JOIN dbo.LeaveApplications ON dbo.EmployeeInfo.id = dbo.LeaveApplications.EmployeeID WHERE (YEAR(dbo.LeaveApplications.ApplicationDate) = YEAR(GETDATE())) GROUP BY dbo.EmployeeInfo.id, dbo.EmployeeMaster.EmpNo ORDER BY DaysTaken DESC The basic functionality i want is to retrieve all records in table dbo.EmployeeInfo irrespective of whether a corresponding record exists in table dbo.LeaveApplications. If a row in EmployeeInfo has no related row in LeaveApplications, i want to return its SUM(dbo.LeaveApplications.DaysAuthorised) AS DaysTaken column as NULL or may be even put a 0. With the above query, if i remove the where condition, am able to achieve what i want, but problem is i also want to return related rows from LeaveApplication only if ApplicationDate is in the current year. Now with the where condition added, am only able to get rows from EmployeeInfo only if they have corresponding rows in LeaveApplications yet i just wanted rows all in EmployeeInfo

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• Style Only Underline

  - by Lynda

  I have a header that is underlined using text-decoration: underline; The only problem is the line is too thin. I would like to make only the underline thicker. I have considered using border-bottom to do this but the border stretches the full width of the container and the text is centered. Doesn't work. I do not think this is possible and I am ready for the crisicm but it never hurts to ask. Never know what solutions one may come up with.

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