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• SQL Server 2008 database timeout after delete

  - by stephenbayer

  I'm running the following statement, it is working locally with SQL Server 2008, however, there is SQL Server 2008 Express on the development server, and after the sql statement runs, I am unable to do SELECT statements on the table in which I deleted the record. Both databases were created with the same table creation scripts. "DELETE FROM [dbo].[tblMiddayMover] WITH (ROWLOCK) WHERE [idMiddayMover] = @IdMiddayMover" What reasons would this statement ever cause the database to hang. After executing that statement, the following SELECT statement causes an error. "SELECT * FROM [dbo].[tblMiddayMover] WHERE [fldActive] = 1" I get the following error: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. I can do select statements on any other table with no issues.

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• Where to declare variable? C#

  - by user1303781

  I am trying to make an average function... 'Total' adds them, then 'Total' is divided by n, the number of entries... No matter where I put 'double Total;', I get an error message. In this example I get... Use of unassigned local variable 'Total' If I put it before the comment, both references show up as error... I'm sure it's something simple..... namespace frmAssignment3 { class StatisticalFunctions { public static class Statistics { //public static double Average(List<MachineData.MachineRecord> argMachineDataList) public static double Average(List<double> argMachineDataList) { double Total; int n; for (n = 1; n <= argMachineDataList.Count; n++) { Total = argMachineDataList[n]; } return Total / n; } public static double StDevSample(List<MachineData.MachineRecord> argMachineDataList) { return -1; } } } }

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• NoMethodError in UsersController#create

  - by Mike DeVerna

  I'm getting stuck on an error I'm getting when signing up a new user in Michael Hart's Ruby on Rails Tutorial. I'm new to rails but I've been searching for hours and can't seem to find anything to figure out the issue. My initial thought is that it's specific to the following line: redirect_to @user This is my file for users_controller.rb #!/bin/env ruby # encoding: utf-8 class UsersController < ApplicationController def show @user = User.find(params[:id]) end def new @user = User.new end def create @user = User.new(params[:user]) if @user.save flash[:success] = "Welcome to the Sample App!" ?????????????? redirect_to @user else render 'new' end end end This is the error message I get: NoMethodError in UsersController#create undefined method `??????????????' for # Rails.root: /Users/mikedeverna/Documents/rails_projects/sample_app Application Trace | Framework Trace | Full Trace app/controllers/users_controller.rb:18:in `create' Here is the code in my routes.rb file: SampleApp::Application.routes.draw do resources :users resources :sessions, only: [:new, :create, :destroy] root to: 'static_pages#home' match '/signup', to: 'users#new' match '/signin', to: 'sessions#new' match '/signout', to: 'sessions#destroy', via: :delete match '/help', to: 'static_pages#help' match '/about', to: 'static_pages#about' match '/contact', to: 'static_pages#contact'

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• C++ Vector of vectors

  - by xbonez

  I have a class header file called Grid.h that contains the following 2 private data object: vector<int> column; vector<vector<int>> row; And a public method whose prototype in Grid.h is such: int getElement (unsigned int& col, unsigned int& row); The definition of above mentioned function is defined as such in Grid.cpp: int getElement (unsigned int& col, unsigned int& row) { return row[row][col] ; } When I run the program, I get this error: error C2109: subscript requires array or pointer type Whats going wrong?

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• How to copy/install assembly in a GAC? (Some problem running NUnit)

  - by prosseek

  I have NUnit installed at this directory. C:\Program Files\NUnit 2.5.5\bin\net-2.0 I made the directory beneath a GAC. C:\Windows\Microsoft.NET\assembly\GAC_MSIL\NUnit and copied the nunit.framework.dll, but I got the same error. When I try to run my unit test (mut.dll) in some random directory. I get the following error. I have to copy the mut.dll under the NUnit directory in order to run it. ProcessModel: Default DomainUsage: Single Execution Runtime: net-2.0 Could not load file or assembly 'nunit.framework, Version=2.5.5.10112, Culture=n eutral, PublicKeyToken=96d09a1eb7f44a77' or one of its dependencies. The system cannot find the file specified. What went wrong? How can I install/copy the assembly inside a GAC?

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• XAMPP on windows 7 not working properly

  - by 404Error

  Hey there, I just installed XAMPP lite on Windows 7. I have two drives - C: for the OS and regular files, and an external drive E:. I installed XAMPP lite on E: (on the root), and its been giving me problems. Apache works well enough, but MySQL doesn't work. When I go to http://localhost/phpmyadmin/, it gives me the following error: Error MySQL said: #2003 - Can't connect to MySQL server on 'localhost' (10061) Connection for controluser as defined in your configuration failed. Any ideas as to what could be the problem? I used the zip file for XAMPP lite, the 32 bit version. This is on Windows 7 Home premium. Thanks!

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• MySQL: Query to obtain recipes using all given ingredients.

  - by John_A

  hi I have the following simplified tables: CREATE TABLE recipe(id int, name varchar(25)); CREATE TABLE ingredient(name varchar(25)); CREATE TABLE uses_ingredient(recipe_id int, name varchar(25)); I want to make a query that returns all id's of recipes that contain both Chicken and Cream. I have tried SELECT recipe_id FROM uses_ingredient INNER JOIN (SELECT * FROM ingredient WHERE name="Chicken" OR name="Cream") USING (name) GROUP BY recipe_id HAVING COUNT(recipe_id) >= (SELECT COUNT(*) FROM theme); which gives me :"ERROR 1248 (42000): Every derived table must have its own alias" and is probably wrong too. Next I tried SELECT recipe_id FROM (SELECT * FROM ingredient WHERE name="Chicken" OR name="Cream") AS t INNER JOIN uses_ingredient USING (name) GROUP BY recipe_id HAVING COUNT(recipe_id)>= (SELECT COUNT(*) FROM t); which gives "ERROR 1146 (42S02): Table 'recipedb.t' doesn't exist" I want to avoid creating temporary tables including using ENGINE=MEMORY.

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• trigger execution against condition satisfaction

  - by maheshasoni

  I have created this trigger which should give a error, whenever the value of new rctmemenrolno of table-receipts1 is matched with the memenrolno of table- memmast, but it is giving error in both condition(it is matched or not matched). kindly help me. CREATE OR REPLACE TRIGGER HDD_CABLE.trg_rctenrolno before insert ON HDD_CABLE.RECEIPTS1 for each row declare v_enrolno varchar2(9); cursor c1 is select memenrolno from memmast; begin open c1; fetch c1 into v_enrolno; LOOP If :new.rctmemenrolno<>v_enrolno then raise_application_error(-20186,'PLEASE ENTER CORRECT ENROLLMENT NO'); close c1; end if; END LOOP; end;

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• trigger execution against condition satisfaction

  - by maheshasoni

  I have created this trigger which should give a error, whenever the value of new rctmemenrolno of table-receipts1 is matched with the memenrolno of table- memmast, but it is giving error in both condition(it is matched or not matched). kindly help me. CREATE OR REPLACE TRIGGER HDD_CABLE.trg_rctenrolno before insert ON HDD_CABLE.RECEIPTS1 for each row declare v_enrolno varchar2(9); cursor c1 is select memenrolno from memmast; begin open c1; fetch c1 into v_enrolno; LOOP If :new.rctmemenrolno<>v_enrolno then raise_application_error(-20186,'PLEASE ENTER CORRECT ENROLLMENT NO'); close c1; end if; END LOOP; end;

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• When will [MFMailComposeViewController canSendMail] return NO

  - by pythonquick

  M iPhone app is using the MFMailComposeViewController class to send an in-app email with an attachment. The app will only attempt to display the mail composer dialog if the "canSendMail" method of class MFMailComposeViewController returns true (YES). Specifically, if the following method returns YES, it shows the mail composer, otherwise the user is presented with an error alert dialog stating that there are no email accounts set up on the device: - (BOOL)canDeviceSendEmail { Class mailClass = (NSClassFromString(@"MFMailComposeViewController")); return mailClass != nil && [mailClass canSendMail]; } A team of testers have reported that they get this error alert dialog, even when email accounts are set up on the device. The tester used an iPhone 3G with OS 3.1.3. Therefore the MFMailComposeViewController class must have existed, and the "canSendMail" method must have returned NO. My question is therefore: apart from the case when there are no email accounts set up on the device, in what other circumstances can the "canSendMail" method return NO? ~ Thanks

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• RSpec "undefined local variable or method `user'"

  - by Justin

  I have the following test written in RSpec: describe '#create' do ... it 'redirects users to profile page' do response.should redirect_to user_path(user) end ... ... And the following in my UsersController: def create @user = User.new(params[:user]) if @user.save redirect_to user_path(@user) end end Does anyone know why this is returning the following error: NameError: undefined local variable or method 'user' I also tried changing this to be root_url in both cases instead of user_path(user) and it gave a different error saying: Expected response to be a <:redirect>, but was <200> Does anyone know what the issue might be? I have double-checked my code and have seen similar questions posted online, but haven't been able to find a solution. Thanks in advance for any help!

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• SQL Convert Nvarchar(255) to DateTime problem

  - by steven

  Hi, I'm using SQL server 2008. I have 2 Tables: Table 1 and Table 2. Table 1 has 1 column called: OldDate which is nvarchar(255), null Table 2 has 1 column called: NewDate which is datetime, not null Example data in Table 1: 26/07/03 NULL NULL 23/07/2003 7/26/2003 NULL 28/07/03 When i try CAST(OldDate as datetime) I get this error: Arithmetic overflow error converting expression to data type datetime. I need to insert OldDate into NewDate with no errors. I can't skip some rows. Anyhelp would be appreciated.

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• Load big XML files to mySQL database (PHP)

  - by Kees

  Hello There, For a new project I need to load big XML files (200MB+) to a mySQL database. There are +- 20 feeds i need to match with that (not all fields are the same). Now when i want to catch the XML I get this error: Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 171296569 bytes) in E:\UsbWebserver\Root\****\application\libraries\MY_xml.php on line 21 Is there an easy solution for this? It's not possible to get te feed in parts of a few MB's each. Thank you very much! P.s. has somebody an idea to match xml-feeds easy?

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• Undefined reference to "func" when compiled with GCC

  - by hotlemontea

  I implement a link list in two files in linklist.h and linklist.c, and I call some functions defined in linklist.h in main function of main.c. linklist.h is included in both linklist.c and main.c. When I compile this program by GCC with Makefile, the error named "undefined reference to xxx" occurs. I think my Makefile is written correctly as below. So what is the possible reason for this linking error CC=gcc CFLAGS= -g -O2 TARGET=target OBJECTS=main.o linklist.o TARGET: $(OBJECTS) $(CC) $(CFLAGS) $(OBJECTS) -o $(TARGET) clean: rm target $(OBJECTS) main.o:linklist.h linklist.o:linklist.h

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• Problem with sending "SetCookie" first in php code

  - by Camran

  According to this manual: http://us2.php.net/setcookie I have to set the cookie before anything else. Here is my cookie code: if (isset($_COOKIE['watched_ads'])){ $expir = time()+1728000; //20 days $ad_arr = unserialize($_COOKIE['watched_ads']); $arr_elem = count($ad_arr); if (in_array($ad_id, $ad_arr) == FALSE){ if ($arr_elem>10){ array_shift($ad_arr); } $ad_arr[]=$ad_id; setcookie('watched_ads', serialize($ad_arr), $expir, '/'); } } else { $expir = time()+1728000; //20 days $ad_arr[] = $ad_id; setcookie('watched_ads', serialize($ad_arr), $expir, '/'); } As you can see I am using variables in setting the cookie. The variables comes from a mysql_query and I have to do the query first. But then, if I do, I will get an error message: Cannot modify header information - headers already sent by ... The error points to the line where I set the cookie above. What should I do?a

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• Problems when trying to submit iphone app

  - by ryug

  I'm a fairly new developer. When I try to submit my iphone app with xcode, I've got error as follows; Code Sign error: The identity 'iPhone Distribution' doesn't match any valid, non-expired certificate/private key pair in the default keychain After searching, I found out that I have to create a Distribution Provisioning Profile. However, my distribution provisioning profile doesn't work, even though my Development Provisioning Profile works perfectly. Could someone please help me with this problem? I'm stuck all day... and please forgive me that my English is not great. Thank you in advance.

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• QuickTime movie disappearing from Javascript when scrolled offscreen in Firefox?

  - by c-had

  I have a web page I'm creating that uses Javascript to control an embedded QuickTime player. I add the QuickTime movie to the page using the AC_QuickTime.js file from Apple (as described here - http://developer.apple.com/mac/library/documentation/QuickTime/Conceptual/QTScripting_HTML/QTScripting_HTML_Document/ScriptingHTML.html#//apple_ref/doc/uid/TP40001525-2-SW1 ). Everything seems to be working fine - I can call methods on the QuickTime movie and control its playback (as well as get the current timestamp). The problem is that in Firefox, when I scroll down such that the QuickTime player is no longer visible, I get the following error every time I try to call a method on the QuickTime movie: Error calling method on NPObject! This does not occur in Safari. Why is this happening, and is there any way to work around this?

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• Why isn't the new() generic constraint satisfied by a class with optional parameters in the construc

  - by Joshua Flanagan

  The following code fails to compile, producing a "Widget must be a non-abstract type with a public parameterless constructor" error. I would think that the compiler has all of the information it needs. Is this a bug? An oversight? Or is there some scenario where this would not be valid? public class Factory<T> where T : new() { public T Build() { return new T(); } } public class Widget { public Widget(string name = "foo") { Name = name; } public string Name { get; set; } } public class Program { public static void Main() { var widget = new Widget(); // this is valid var factory = new Factory<Widget>(); // compiler error } }

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• I was making this program and the server wont send to the client

  - by crstin

  void CApplication::SendData( const char pBuffer[] ) { if( pBuffer == NULL ) { Log()->Write( ELogMessageType_ERROR, "Cannot send NULL message."); return; } // calculate the size of that data unsigned long messageSize = strlen( pBuffer ); // fix our byte ordering messageSize = htonl( messageSize ); if( isServer == true ) { for( unsigned int i = ESocket_CLIENT0; i < ESocket_MAX; ++i ) { // send the message size if( m_Socket[ i ] > 0 ) { if( send( m_Socket[ i ], (char*)&messageSize, sizeof( messageSize ), 0 ) == SOCKET_ERROR ) { Log()->Write( ELogMessageType_ERROR, "[Application] Send error: %i to socket %i", WSAGetLastError(), m_Socket[ i ] ); continue; } // fix our message size back to host ordering messageSize = ntohl(messageSize); // send the actual message if( send( m_Socket[ i ], pBuffer, messageSize, 0 ) == SOCKET_ERROR ) { Log()->Write( ELogMessageType_ERROR, "[Application] Send error: %i to socket %i", WSAGetLastError(), m_Socket[ i ] ); continue; } Log()->Write( ELogMessageType_MESSAGE, "[Application] SEND: %s", pBuffer ); } } }

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• Java: Can't implement runnable on a test case: void run() collides

  - by Zombies

  So I have a test case that I want to make into a thread. I cannot extend Thread nor can I implement runnable since TestCase already has a method void run(). The compilation error I am getting is Error(62,17): method run() in class com.util.SeleneseTestCase cannot override method run() in class junit.framework.TestCase with different return type, was class junit.framework.TestResult. What I am trying to do is to scale a Selenium testcase up to perform stress testing. I am not able to use selenium grid/pushtotest.com/amazon cloud at this time (installation issues/install time/resource issues). So this really is more of a Java language issue for me.

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• How to know if a MySQL UPDATE query fails because information being supplied matches data already in

  - by Mike

  I have a query where the user types a block of text in a textarea field. They are able to save this information in a database. The problem is that if they have not changed the information or if the information matches the data already in the database, I recieve a '0' for affected rows. Usually I display an error that says the query failed when there are no affected rows. How would I 'know' that the 0 affected rows is because the data already exists, so that I can display a more specific error?

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• Checking for a session variable... returns (Object reference not set to an instance of an object.)

  - by Chocol8

  In the Session_Start i have Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs) Session("login") = False End Sub and in a custom .aspx page i included the following... Public ReadOnly Property GetLoginState() As Boolean Get If Current.Session("login") Is Nothing Then Current.Session("login") = False End If Return Current.Session("login") End Get End Property Why i am getting error the error Object reference not set to an instance of an object. at line If Current.Session("login") Is Nothing Then while checking for the login state as follows? If GetLogin = False Then 'Do something End if I mean i have already created the instance on the Session_Start... Haven't i? What am i doing wrong here?

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• Can't figure out what's wrong with my php/sql statement

  - by Olegious

  So this is probably a dumb beginner question, but I've been looking at it and can't figure it out. A bit of background: just practicing making a web app, a form on page 1 takes in some values from the user, posts them to the next page which contains the code to connect to the DB and populate the relevant tables. I establish the DB connection successfully, here's the code that contains the query: $conn->query("SET NAMES 'utf9'"); $query_str = "INSERT INTO 'qa'.'users' ('id', 'user_name','password' ,'email' ,'dob' ,'sx') VALUES (NULL, $username, $password, $email, $dob, $sx);"; $result = @$conn->query($query_str); Here's the error that is returned:Insert query failed: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''qa'.'users' ('id', 'user_name' ,'password' ,'email' ,'dob' ,'s' at line 1 Thanks in advance!

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• Installed service starting and then stopping immediatly

  - by djerry

  Hey guys, I am trying to install a service with a setup project. So through a normal setup/msi file, the service should be installed in services. So it works, but when i press start, i get the error/fault shown in the picture below. Does anyone know what causes it and most of all how i can solve it? I've read the message, but can't seem to find the origin. I don't know the most common things that would cause this error. Thanks in advance. ps: Other post is not helping to solve the problem

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• visual studio asp.net mvc, changing target framework

  - by mike

  Hello there Im have just changed the target framework for an asp.net mvc project from target framework 4 t 3.5, I keep getting this error when I try to debug, or go to any controller action 'HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. ' Any ideas why I keep getting this error? as soon as I revert back to .net 4.0, everything is fine ps could be an issue with routing as the global.asax Application_Start() is not not hit hence route entries are not registered Thanks

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