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• "SQL Server does not exist or access denied." upon VB.Net Deployment

  - by JasonMHirst

  Have built a small VB.Net app in VS2010. The connection string to the SQL Server is as follows: <connectionStrings> <add name="IWSR_DataDownloadWizard.My.MySettings.sqlConnection" connectionString="Provider=SQLOLEDB.1;Data Source=SQLServer;Integrated Security=SSPI;Initial Catalog=IWSROL" providerName="System.Data.OleDb" /> </connectionStrings> Within the VS2010 environment AND on my machine, the connection works perfectly, however when I deploy to clients I get an error message of: [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied. I've tried to search the net for solutions, have seen a few instances of people saying to NOT use the Server Name but the IP Address instead (this doesn't work) and some saying to remove the "Provider=SQLOLEDB.1", again this doesn't work. Can anyone suggest a solution please? Further information: Development System is Windows7 using VS2010 Deployment systems are a combination of Windows XP, Windows 2000 and Windows 7 SQL Server is SQL2000 (soon to be SQL2005). TIA

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• How to show / debug PEAR::DB errors in webpage?

  - by Markus Ossi

  I am connecting to MySQL database on my webpage and have this copy-pasted code for errors: if(DB::isError($db)) die($db->getMessage()); I have the connection code in an outside file called connection.inc that I include at the beginning of my page before the DOCTYPE and html tags. For debugging purposes, how can I print the database errors on my webpage? I thought I could do something like this: echo 'Could not connect to database. The error was:' . $db->getMessage(); but this returns: Fatal error: Call to undefined method DB_mysql::getMessage()

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• Sql query builder c# for windows mobile

  - by pdiddy

  I'm building a windows mobile app. And using SqlCe. I'm looking for a good sql query builder. So instead of writing "SELECT COLUMNS FROM TABLE WHERE etc... Is there a good free library that can build this sort of query? EDIT: You know when you write your code with ADO.net something like this SqlCeCommand command = new SqlCeCommand(Connection); command.CommandText = "SELECT * FROM Orders WHERE customerId = @customerId"; Well i'm looking for some library that could build that SELECT statement using classes instead of writing it through string. So something like: SqlCeCommand command = new SqlCeCommand(Connection); SqlQueryBuilder query = new SqlQueryBuilder(); query.Table = "Orders"; query.AddWhere("customerId", myValue) command.CommandText = query.toString(); Something like that .... so a class that will build the query..

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• I am an Indian, is it possible for me to get a job in Europe ?

  - by Yuva

  Hi, I have just started my career as software Engineer with a reputable company in India. I'm working in SAP ABAP. Chances to grow higher in this company are good but they are slow. I would like to work in European countries where SAP is popular and the options for career growth and pay are better. Is it possible for me to get a job in Europe after being 3 years experienced in ABAP? If so, what are all the things that I should do to get one satisfactory Job?

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• How can I lower my C# learning curve? [closed]

  - by MSU

  I have been learning programming, mostly C# and .net stuff. And I have target to become a fulltime .NET developer. But I am feeling that learning Graph is very slow, I have been learning C# programming, doing some coding everyday, but how I can learn very fast and increase my skills rapidly? I know there should be a balance of coding and reading, as without reading I can't code and without coding I can't increase my skills. SO, I am requesting here suggesting from experts on how I bring more pace to my learning curve? I intend to give 4-6 hours daily for this and on weekends 10+ hours.

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• Is it possible to setup a DHCP server only for local virtual machines?

  - by thiesdiggity

  I have a quick question. I have a bunch of virtual machines (VMWare Workstation) running on an Ubuntu server and have found that VMWare NAT (DHCP) service is unreliable and slow. I have to use NAT instead of bridging because the server is in a data-center that does not have DHCP and I don't have enough static IP's for all the VMs. Is it possible to setup the host (Ubuntu) to be a DHCP server but only for the local virtual machines? The server has 2 network interfaces, so I'd set eth0 to be a static IP, which connects to the outside world, and eth1 to listen for DHCP. Now, I am thinking if I don't want DHCP to broadcast I would just not connect a cable to eth1 and setup the VM's to use bridging on eth1. That way DHCP would not broadcast through my network but be listening on that interface. Would that setup work?

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• How do I implement powerups for my Breakout clone?

  - by Eva

  I'm making a simple Breakout clone in Python that will have very many powerups/powerdowns (so far I came up with 26). Some will affect the paddle (paddle missile, two paddles, short paddle, etc.), some will affect the ball (slow ball, destructo-ball, invisible ball, etc.), some will affect the bricks (brick scramble, move up, bricks indestructible, etc.), and some will affect other game aspects (extra life, more points, less points, etc.). I'm pretty sure I have the code to draw the falling powerups and test for collisions with the paddle down, but I'm confused about how to code the effects of the powerups. Since there are very many powerups, it seemed inefficient to add specific methods to each component as done in this tutorial. However, I can't think of an other ways to implement the powerups. I found a page that hints at some way to design powerup behavior using classes, but I'm at a loss for how to do that. (A short example would help.) Please give me a short code example of another way to implement the effects of the powerups.

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• Black screen in kernel 3.8 (not 3.5, 3.11, 3.13)

  - by TheDeeno

  I need to use kernel 3.8 to address some docker compatibility issues. However, after installing this kernel when I attempt to boot my machine I get a black screen. The system appears to boot to the login screen (I hear the drum sounds), but the screen remains black. If I boot into recovery mode the video works, but is buggy/slow. In recover mode it looks like it's using the vesa driver. It'd be great if I can force this in normal mode. My machine has an ivy bridge intel processor with integrated graphics What should I do next to troubleshoot this?

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• how to serialize function depending on what instance of object calls it, if same instance call in a thread then do serialize else not

  - by LondonDreams

  I have a function which fetches and updates some record from db and I am trying to make sure each if the function is called by same instance of object(same Or different thread) then function should behave synchronized else its a call from different object instance function need not to be synchronized. I have tried it use a lock per client. That is, instead of synchronizing the method directly using explicit locking through lock objects using Map. function is like :- getAndUpdateMyHitCount(myObjId){ //go to db and get unique record by myObjId //fetch value , increment , save update } And this function may get call is same thread by different Or same object instance But as fetching and matching from Map is slow , Is there other optimized way to do this ? Found similar at this Question but dont feel that is optimized

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• PHP and MySQLi close()

  - by Theopile

  Hello all. I am new to mysql and php, but am attempting to make my own cms to help make managing my websites easier. Can someone explain the mysqli's close() function. 1)Is it nesseccary? 2)What exactly does it do? 3)I heard that after php runs its script that it closes the connection, is that true? 4)Lastly, is there a security issue when not closing your connection to the database? Thanks

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• c++ networking issue- retrnsmittion without ccongestion

  - by gln

  I wrote an application in c++ which send data over tcp connection to several machines.as part of the protocol I use in my application, the other side sends hearbeat messages from time to time, then I know that the connection is still alive. now, I want this application to work on 100 machines or more at the same time. but, I see that sometimes I don't get these heartbeat messages although they sent: I see in wireshark that the packet arrived, then my OS doesn't ack on this message, so there are some retransmit without any ack from my OS. if I look in the window size property - I saw that there is no issue in this part. what can be the root cause for this behavior? it is something in my code that I should change? this is my select code: int res = select(fdCount, &readFds, NULL, NULL, NULL ); I'm using server 2008 r2. Please help me! thanks

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• Problem indexing files in Solr on Ubuntu

  - by nik

  Hi, What I want to do is index some documents in Solr and know how it works. I have installed Solr and Tomcat and can see Solr Admin UI at localhost:8080/ solr/ admin/ Now, I want to add some documents to the index, may I know how to proceed further? I find very less documentation on Internet regarding this. In the tutorial http://lucene.apache.org/solr/tutorial.html#Indexing+Data they asked to run java -jar post.jar solr.xml monitor.xml command but after running that I get connection refused error as it is jetty. After installing jetty I tried telnet: I get "Connection refused" error I am not able to understand what the problem is.

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• MongoDB db.serverStatus() gives error when running using tunnel that is targetted to api.cloudfoundry.com

  - by Ajay

  Following is the console session... C:\Users\xxx>vmc tunnel myMongoDB Getting tunnel connection info: OK Service connection info: username : uuuu password : pppp name : db url : mongodb://uuuu:[email protected]:25200/db Starting tunnel to myMongoDB on port 10000. 1: none 2: mongo 3: mongodump 4: mongorestore Which client would you like to start?: 2 Launching 'mongo --host localhost --port 10000 -u uuuu -p pppp db' MongoDB shell version: 2.0.6 connecting to: localhost:10000/db > db.serverStatus() { "errmsg" : "need to login", "ok" : 0 } > Which credentials should I use to login (assuming should use db.auth) to get rid of the error "{ "errmsg" : "need to login", "ok" : 0 }". When I run the same in micro CF on my machine it works ok and gives me the expected output. P.S. I'm trying this to get to know the current connections on my application, written in node.js. Trying to debug some issues with connections to the DB. If there is any other alternative that I can use please suggest that as well.

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• Abnormally disconnected TCP sockets and write timeout

  - by James

  Hello I will try to explain the problem in shortest possible words. I am using c++ builder 2010. I am using TIdTCPServer and sending voice packets to a list of connected clients. Everything works ok untill any client is disconnected abnormally, For example power failure etc. I can reproduce similar disconnect by cutting the ethernet connection of a connected client. So now we have a disconnected socket but as you know it is not yet detected at server side so server will continue to try to send data to that client too. But when server try to write data to that disconnected client ...... Write() or WriteLn() HANGS there in trying to write, It is like it is wating for somekind of Write timeout. This hangs the hole packet distribution process as a result creating a lag in data transmission to all other clients. After few seconds "Socket Connection Closed" Exception is raised and data flow continues. Here is the code try { EnterCriticalSection(&SlotListenersCriticalSection); for(int i=0;i<SlotListeners->Count;i++) { try { //Here the process will HANG for several seconds on a disconnected socket ((TIdContext*) SlotListeners->Objects[i])->Connection->IOHandler->WriteLn("Some DATA"); }catch(Exception &e) { SlotListeners->Delete(i); } } }__finally { LeaveCriticalSection(&SlotListenersCriticalSection); } Ok i already have a keep alive mechanism which disconnect the socket after n seconds of inactivity. But as you can imagine, still this mechnism cant sync exactly with this braodcasting loop because this braodcasting loop is running almost all the time. So is there any Write timeouts i can specify may be through iohandler or something ? I have seen many many threads about "Detecting disconnected tcp socket" but my problem is little different, i need to avoid that hangup for few seconds during the write attempt. So is there any solution ? Or should i consider using some different mechanism for such data broadcasting for example the broadcasting loop put the data packet in some kind of FIFO buffer and client threads continuously check for available data and pick and deliver it to themselves ? This way if one thread hangs it will not stop/delay the over all distribution thread. Any ideas please ? Thanks for your time and help. Regards Jams

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• mysql_connect()

  - by Jacksta

  I am trying to connect to mysql and am getting an error. I put my servers ip address in and used port 3306 whihch post should be used? <?php $connection = mysql_connect("serer.ip:port", "user", "pass") or die(mysql_error()); if ($connection) {$msg = "success";} ?> <html> <head> </head> <body> <? echo "$msg"; ?> </body> </html> Here is the error its producing Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'admin'@'server1.myserver.com' (using password: YES) in /home/admin/domains/mydomain.com.au/public_html/db_connect.php on line 3 Access denied for user 'admin'@'server1.myserver.com' (using password: YES)

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• UITableView Reload Data

  - by william-hu

  Hi, i used UITableView to show the info which was get for server. - (void)viewWillAppear:(BOOL)animated { //Create connection } Then i put the received data into array : NSSArray *dataFromServer: Then i want to show the data on each cell (some NSString object). As the connection was release, i call [self.tableView reloadData] , but cant work. So i'd like to know, how to make this? It means cellForRowAtIndexPath: has nothing at beginning, but after few seconds, shows something. Thank you so much!

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• Replacing TCP/IP pipe with WCF

  - by msarchet

  So currently my company is using a TCP/IP connection to talk between server and client programs, right now we are building this connection using System.RunTime.Remoting, which is clunky and not that reliable. It was built about 5 years ago and the model keeps getting reused and it's starting to propagate some issues, ports used, refused connections, etc. I'm trying to find some resources on how to change this over to WCF but I'm not really sure what I am looking for or what I should be searching. If you want some more information on what were actually doing with it I can go into some detail, but I'll need to pull up the code and make sure I explain it completely. thanks!

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• How do I delete all tables in a database using SqlCommand?

  - by mafutrct

  Unlike the other posts about the task "delete all tables", this question is specifically about using SqlCommand to access the database. A coworker is facing the problem that no matter how it attempts it, he can't delete all tables from a database via SqlCommand. He states that he can't perform such action as long as there is an active connection - the connection by the SqlCommand itself. I believe this should be possible and easy, but I don't have much of a clue about databases so I came here to ask. It would be awesome if you could provide a short code example in C# (or any .NET language, for that matter). If you require additional information, just leave a comment.

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• Change the scale-policy of OpenGL ES in Android?

  - by wanting252

  I currently develop a game for Android in OpenGL ES 1.0, use libgdx library. I target the 720x480 screen size. For example, I design only one arts pack for 720x480. And what will happen in Android phones with screen-size smaller or bigger than it, 480x320 for instance? Could you please tell me how to change the scale-policy of OpenGL ES in Android? Or in libgdx specially? Is there anything like "Resample Image" like photoshop?(Nearest Neighbor, Bilinear, Bicubic etc..) for libgdx? Edit: I found some tutorials about texture filter in OpenGL, test it with Linear and Nearest. Linear is good for scaling but slow down the game, and Nearest is on the contrary. What should I do to get a balance between those?

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• Capistrano SSH::AuthenticationFailed, not prompting for password

  - by Sparkmasterflex

  I've been using capistrano successfully for a while now and all of a sudden in every project I've lost the ability to deploy. Environment: os X (Mavericks) ruby 1.9.3p194 rvm (locally, not on server) rails 3.2 and up RubyGems 1.8.25 I'm not using rsa_keys or anything I want capistrano to prompt for user and password. Suddenly it has decided not to ask for a password, but does ask for user. Then it rolls back and gives me the following error. [deploy:update_code] exception while rolling back: Capistrano::ConnectionError, connection failed for: sub.example.com (Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]) connection failed for: sub.example.com (Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]) This has occurred on my personal laptop and my iMac at work. It occurs when deploying to two different servers (both linux) I'm completely at a loss here. Any ideas?

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• What would you call the concept of CofeeScript or Sass to be?

  - by MaG3Stican

  There is this rising trend with web development of making new pseudo languages to extend the functionality of JavaScript, CSS and HTML given that those are static and their metamorphosis or evolution is painfully slow due to the variety of browser providers. So I am currently having a concept dilema on how to categorize them for a book I was made to write by my employer as no one seems to have a name for these pseudo languages. A tiny list of them : JavaScript: LiveScript, Metalua, Uberscript, EmberScript. HTML: Razor, Java Scriptlets. CSS : LESS, Sass. I believe the concept of these pseudo languages and a language or an extension of a language is quite different. First these languages do not extend any functionality currently existing on HTML or CSS or JavaScript, they simply work around it. And also they do not "compile" to an intermediate language, they are merely 1-1 translated to something that only then can be compiled. What would you call them?

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• How to write an Android SocketServer to listen on wifi

  - by xioxox

  I've written a thread using java.net.SocketServer to listen on a particular port. It works fine in the android simulator (using port forwarding). I'm planning to connect over wifi to this port when the app is being used. However, the SocketServer documentation says that if you don't supply an InetAddress, the server listens on localhost. Am I correct that if I do not supply the address, I will not be able to get a connection over wifi? How can I get the InetAddress of the wifi connection to pass to the SocketServer?

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• Accessing cookies in php which are set in java web application

  - by user866937

  I am setting a cookie at the domain level on encrypted connection in Java web application running on tomcat and I would like it to be accessible in a php web application running on a same domain but different subdomain. Java web application running on https://javaapp.mycompany.com php web application running on https://phpapp.mycompany.com/subpath/index.php From java, I am setting the cookie with following parameters: Domain: .mycompany.com Send For: Encrypted connections only Expires: After 2 months Path: /subpath Name: __C Value: 1 Dumping all the cookies from my php web application running on https, I do not see any cookies getting dumped by the php web application. Whereas if I set the cookies in Java for any type of connection, only then php web application is able to see them if I run the php app on http instead of https. I believe php web app should be able to retrieve then cookies set for https only and for particular domain and all immediate sub-domains. What am I doing wrong here? Thanks in advance for the help.

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• help in security assignment

  - by scatman

  i have to write a program that sniffs network packets (part1-the simple part). and i have to update the program (part2) so that it will be able to terminate connections. the specific requirements are: construct raw packets by specifying data link layer and network layer information including appropriate source and destination MAC and IP addresses. These packets are intended to terminate the connection. To do so, you should used SOCK_RAW as the socket type to be able to set the header information by yourself. can anybody give me some ideas on the second part? should i hijack the session,apply a dos attack on one of the users?? all i need is some tips of how to terminate the connection. i am using c programming language. and this is a course assignment for the security course.

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• Statement.RETURN_GENERATED_KEYS concept

  - by rits

  import java.sql.* ; import java.util.* ; import java.io.* ; class DataBaseFactory{ public static Connection getConnection(){ ... ... ... ... } } class Demo{ public static void main(String []args) throws SQLException{ Connection con = DataBaseFactory.getConnection() ; //This is throwing exception //PreparedStatement ps = con.prepareStatement("insert into user values(?,?)", Statement.RETURN_GENERATED_KEYS) ; //But this is working fine PreparedStatement ps = con.prepareStatement("insert into user values(?,?)") ; } } thnx in advance to all the java people here....

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