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• Windows 8 Install

  - by Richard Jones

  So did my first Windows 8 install today. Did it on a Macbook Pro (bootcamp partition). Bootcamp partition, needed to be formatted by Windows 8, in-order to proceed. However once done install went smoothly. Installed the Apple Windows Support stuff in compatibility mode; which went well. I tried it first not in compatibility mode and it caused a Blue Screen of death (which now has a :-( icon ) The volume, brightness etc. soft keys work well. I had some trouble joining wireless networks; so hopefully a windows update will resolve. First impression, is that 'its just like Windows 7', but with Metro. We'll see what happens over the next few days.

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• MySQL parameter resource error

  - by Derek

  Here is my error: Warning: mysql_query() expects parameter 2 to be resource, null given... This refers to line 23 of my code which is: $result = mysql_query($sql, $connection) My entire query code looks like this: $query = "SELECT * from users WHERE userid='".intval( $_SESSION['SESS_USERID'] )."'"; $result = mysql_query($query, $connection) or die ("Couldn't perform query $query <br />".mysql_error()); $row = mysql_fetch_array($result); I don't have a clue what has happpened here. All I wanted to do was to have the value of the users 'fullname' displayed in the header section of my web page. So I am outputting this code immediately after to try and achieve this: echo 'Hello '; echo $row['fullname']; Before this change, I had it working perfectly, where the session variable of fullname was echoed $_SESSION['SESS_NAME']. However, because my user can update their information (including their name), I wanted the name displayed in the header to be updated accordingly, and not displaying the session value.

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• OracleDataAdapter returns no rows, but the query string works in SQLDeveloper

  - by belzebu

  visual studion 2008 oracle db 11.1.0.7 oracle client for .NET I have a relatively simple query, that selects the rows from across multiple tables (up to 4) using joins. OracleDataAdapter returns no rows for the only dataset's table, but if I copy and paste that query in SQLDeveloper then I get the desired results. I can get the data from other tables using the adapter with no problem, but it seems like it struggles with the bit longer selection query (string length is ~ 300 (not that much at all)) Connection string for the connection is 100% correct. Any ideas? thank you...

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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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• How do I write sql data into a textbox after a submit type event

  - by Matt

  Finishing up some homework and Im having trouble with figuring out how to take information generated in sql column(a primary key set up to assign a record number to a customer example 1046) at submit and writing it to my redirected recipt page. I call it recipt.aspx. Any takers Professor says to use a datareader...but things go bad after that. public partial class _Default : System.Web.UI.Page { String cnStr = "EDITED FOR THE PURPOSE OF NOT DISPLAYED SQL SERVERta Source=111.11.111.11; uid=xxxxxxx; password=xxxx; database=xxxxxx; "; String insertStr; SqlDataReader reader; SqlConnection myConnection = new SqlConnection(); protected void submitbutton_Click(object sender, EventArgs e) { myConnection.ConnectionString = cnStr; try { //more magic happens as myConnection opens myConnection.Open(); insertStr = "insert into connectAssignment values ('" + TextBox2.Text + "','" + TextBox3.Text + "','" + TextBox4.Text + "','" + TextBox5.Text + "','" + bigtextthing.Text + "','" + DropDownList1.SelectedItem.Value + "')"; //magic happens as Connection string is assigned to connection object and passes in the SQL statment //associate the command to the the myConnection connection object SqlCommand cmd = new SqlCommand(insertStr, myConnection); cmd.ExecuteNonQuery(); Session["passmyvalue1"] = TextBox2.Text; Session["passmyvalue2"] = TextBox3.Text; Session["passmyvalue3"] = TextBox4.Text; Session["passmyvalue4"] = TextBox5.Text; Session["passmyvalue5"] = bigtextthing.Text; Session["I NEED SOME HELP RIGHT HERE"] =Textbox6.Text; Response.Redirect("receipt.aspx"); } catch { bigtextthing.Text = "Error submitting" + "Possible casues: Internet is down,server is down, check your settings!"; } finally { myConnection.Close(); TextBox2.Text = ""; TextBox3.Text = ""; TextBox4.Text = ""; TextBox5.Text = ""; bigtextthing.Text = ""; } //reset validators? } The recipt page public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if(Session["passmyvalue1"] != null) { TextBox1.Text = (string)Session["passmyvalue1"]; TextBox2.Text = (string)Session["passmyvalue2"]; TextBox3.Text = (string)Session["passmyvalue3"]; TextBox4.Text = (string)Session["passmyvalue4"]; TextBox5.Text = (string)Session["passmyvalue5"]; TextBox6.Text = I don't know ; } } } THanks for the help

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• Floppy Drive not recognised

  - by Art

  I am a newbie with Ubuntu during the past two weeks, and I believe, that I have made good progress so far. Current setup tasks are completed, like: "Wireless Network, Printer, Thunderbird + Firefox, e-mail", also my local weather station - all setup. Updated files and rearranged the desktop to my liking. The problem I have now is my floppy drive which is not recognized, but the activity light is shown on constantly. I have downloaded the "MakeFloppyDriveAvailableToEveryone" and i am confident that I can follow the instructions to change the floppy drive. However, I do not have an existing fd0 file in /dev/???, but only /dev/fd/ files 0 to 46. Please advise.

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• How to connect two ubuntu laptops using putty?

  - by VanillaTwilight

  I am trying to connect two ubuntu laptops(server and client) using putty here is the description : LAPTOP A : UBUNTU SERVER 12.04 KERNEL : 3.2.0 LAPTOP B : UBUNTU 12.04 KERNEL : 3.2.0 Initially , made following attempts: connecting ubuntu server to the internet( wireless network) using Referred link : www.ubuntuforums.org/showthread.php?t=1740726 installed openssh-server in the Laptop A. putty in Laptop B seen the different options in the /etc/ssh/sshd_config shows 'Access Denied' while trying to login in (after i have entered the correct password ) from the laptop B Referred link : http://naveenubuntu.blogspot.in/2012/08/receiving-access-denied-just-after.html Doesnt work. Please help.

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• Computer crashed during 3.0.0.17-generic kernel upgrade

  - by Z Swim

  My computer crashed (due to heat) during the update process for the 3.0.0.17-generic kernel upgrade. My computer will not boot ant all in 3.0.0.17 now and 3.0.0.16 is unstable (wireless networking doesn't work, also crashes often). I found the boot to previous versions tool at start up and the last stable version is 3.0.0.15-generic. However, my computer still thinks that it has 3.0.0.16-generic and 3.0.0.17-generic, even though both of these versions are broken. Is there anyway to force a reinstall of the 3.0.0.16-generic and 3.0.0.17-generic kernel updates from 3.0.0.15 and associated other updates?. (Without having to do a full reinstall?) I am running ubuntu 11.10. Thanks!

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• Active Directory on local server and intranet on external server.

  - by cvack

  I have a local Active Directory server and a external web server where my intranet is located. $ad = ldap_connect("ldap://ip-address") or die("Couldn't connect to AD!"); ldap_set_option($ad, LDAP_OPT_PROTOCOL_VERSION, 3); $bd = ldap_bind( $ad, "user@domain", "password") or die("Can't bind to server."); When I run this on a local web server it succesfully binds the connection. If I run the same code on the external server its unable to bind the ldap connection. Both port 389 and 636 is open on the AD server. I've tried google for an answer, but all the tutorials is for Active Directory and webserver on the same server. Is this even possible?

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• Proper abstraction of the database tier in a 3 tier system?

  - by Earlz

  Hello, I am creating a 3 tier application. Basically it goes Client - (through optional server to be a thin-client) - Business Logic - Database Layer And basically making it so that there is never any skipping around. As such, I want for all of the SQL queries and such to be in the Database Layer. Well, now I'm a bit confused. I made a few static classes to start off the database tier but what should I do for the database connections? Should I just create a new database connection anytime I enter the Database Layer or would that be wasteful? Does Connection.Open() take time whenever you have a ConnectionPool? To me, it just feels wrong for the Business tier to have to pass in a IdbConnection object to the Database tier. It seems like the Database tier should handle all of that DB-specific code. What do you think? How can I do it the proper way while staying practical?

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• Trying to turn an old computer into a server. Where do I start?

  - by Stanton.Sculpture

  My old computer is a mac powerbook g4 that I am considering turning into an Ubuntu Server for my house of eight to share movies and music and whatever. I've never even thought about doing this kind of stuff before so I don't even know where to start. Can someone point me in the right direction? My Concerns: Most of my house mates have macs. Will there be compatibility issues? Can I make it a wireless network? My old powerbook g4 might not have the balls. Money Thanks!

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• Which collation should I use to store these country names in MySQL?

  - by morpheous

  I am trying to store a list of countries in a mySQL database. I am having problems storing (non English) names like these: São Tomé and Príncipe República de El Salvador They are stored with strange characters in the db, (and therefore output strangely in my HTML pages). I have tried using different combinations of collations for the database and the MySQL connection collation: The "obvious" setting was to use utf8_unicode_ci for both the databse and the connection information. To my utter surprise, that did not solve the problem. Does anyone know how to resolve this issue?

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• Ubuntu Desktop on PC as an IPv6 router?

  - by Cliff

  I have a DELL PC with Ubuntu 12.10 and a pandaboard running the latest linaro ubuntu 12.08. The Ethernet on the panda board is reporting 'no ipv6 router present' regardless of what router I connect (they are all probably not ipv6). I can connect via a cross-over Ethernet cable the pandaboard to the DELL PC. Can I setup the DELL PC to act as an IPv6 router. the PC has a wireless connect to our router/ADSL box. I would Really appreciate some help here so if you have an alternative please suggest it.

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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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• Multicast in Ubuntu

  - by iwant2learn

  Can some one please explain the steps required to configure a multicast in Ubuntu? I have a simple program taken from Internet. I get errors when I execute the client program. I get the error as: Opening datagram socket....OK. Setting SO_REUSEADDR...OK. Binding datagram socket...OK. Adding multicast group error: No such device: When I execute the server program I get the error as: Opening the datagram socket...OK. Setting local interface error: Cannot assign requested address I am using Ubuntu to run the program. I have two different laptops but connected via the same network. I am using wireless network to perform the above operation.

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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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• how to use Thread in java ?

  - by tiendv

  Hi all i have code use googleseach API I want to use Thread to improve speed of my program. But i have a problem here is code import java.io.BufferedReader; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; import java.net.URLEncoder; import java.util.ArrayList; import java.util.Enumeration; import java.util.Hashtable; import java.util.List; import org.json.JSONArray; import org.json.JSONObject; import com.yahoo.search.WebSearchResult; /** * Simple Search using Google ajax Web Services * * @author Daniel Jones Copyright 2006 Daniel Jones Licensed under BSD open * source license http://www.opensource.org/licenses/bsd-license.php */ public class GoogleSearchEngine extends Thread { private String queryString; private int maxResult; private ArrayList<String> resultGoogleArrayList = null; public ArrayList<String> getResultGoogleArrayList() { return resultGoogleArrayList; } public void setResultGoogleArrayList(ArrayList<String> resultGoogleArrayList) { this.resultGoogleArrayList = resultGoogleArrayList; } public String getQueryString() { return queryString; } public void setQueryString(String queryString) { this.queryString = queryString; } public int getMaxResult() { return maxResult; } public void setMaxResult(int maxResult) { this.maxResult = maxResult; } // Put your website here public final static String HTTP_REFERER = "http://www.example.com/"; public static ArrayList<String> makeQuery(String query, int maxResult) { ArrayList<String> finalArray = new ArrayList<String>(); ArrayList<String> returnArray = new ArrayList<String>(); try { query = URLEncoder.encode(query, "UTF-8"); int i = 0; String line = ""; StringBuilder builder = new StringBuilder(); while (true) { // Call GoogleAjaxAPI to submit the query URL url = new URL("http://ajax.googleapis.com/ajax/services/search/web?start=" + i + "&rsz=large&v=1.0&q=" + query); URLConnection connection = url.openConnection(); if (connection == null) { break; } // Value i to stop while or Max result if (i >= maxResult) { break; } connection.addRequestProperty("Referer", HTTP_REFERER); BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8")); while ((line = reader.readLine()) != null) { builder.append(line); } String response = builder.toString(); JSONObject json = new JSONObject(response); JSONArray ja = json.getJSONObject("responseData").getJSONArray("results"); for (int j = 0; j < ja.length(); j++) { try { JSONObject k = ja.getJSONObject(j); // Break string into 2 parts: URL and Title by <br> returnArray.add(k.getString("url") + "<br>" + k.getString("titleNoFormatting")); } catch (Exception e) { e.printStackTrace(); } } i += 8; } // Remove objects that is over the max number result required if (returnArray.size() > maxResult) { for (int k=0; k<maxResult; k++){ finalArray.add(returnArray.get(k)); } } else return returnArray; return finalArray; } catch (Exception e) { e.printStackTrace(); } return null; } @Override public void run() { // TODO Auto-generated method stub //super.run(); this.resultGoogleArrayList = GoogleSearchEngine.makeQuery(queryString, maxResult); System.out.println("Code run here "); } public static void main(String[] args) { Thread test = new GoogleSearchEngine(); ((GoogleSearchEngine) test).setQueryString("data "); ((GoogleSearchEngine) test).setMaxResult(10); test.start(); ArrayList<String> returnGoogleArrayList = null; returnGoogleArrayList = ((GoogleSearchEngine) test).getResultGoogleArrayList(); System.out.print("contents of al:" + returnGoogleArrayList); } } when i run it, it can run into run method but it don't excute make query methor and return null array. when i do't use Thread it can nomal . Can you give me the reason why ? or give a sulution Thanks

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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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• Is it possible to dynamically set a static string during *class* Initialisation?

  - by LonnieBest

  I'm trying to dynamically create a connection string during compile time: public static string ConnectionString { get { string connectionString = @"Data Source=" + myLibrary.common.GetExeDir() + @"\Database\db.sdf;"; return connectionString; } } I keep running into type initialisation errors. I was trying to avoid having to set the connection string for all applications that user my code library. The location of the database is different for each project that uses the library. I have code that can determine the correction string, but was wanting run it during compile time. Is this even possible?

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• Blocking Request

  - by isurulucky

  Hi, What does a server connection with a blocking request mean? Thank You!

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• Check if server exists

  - by buhtla

  Here is the problem. User can enter server name and connection string for database. If server is not accessible (wrong address, firewalls or any other issue), I want to be aware of this as quickly as possible. If I'm using sqlConnection and try to connect to a non-accessible server this takes very long (I think more than 1 minute!). This has nothing to do with connection timeout btw so setting this property won't help. My idea is to first try to ping server and if I get response (which means server is accessible from the point of application), than proceed with sqlConnection. If there is no response from ping, operation is aborted and user is properly notified. Is there any better way of doing this? Any idea would be welcome.

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• http authenitcation in xcode

  - by user313100

  I am trying to make twitter work in my app and everything works fine except the code does not seem to recognize an error from twitter. If the username/password are not valid, I get an error message through this function: - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSString* strData = [[[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSASCIIStringEncoding] autorelease]; NSLog(@"Received data: %@", strData ) ; return ; } It prints: Received data: Could not authenticate you. . However, the app continues to the post a tweet view I have and ignores the error. Obviously, I do not have something setup right to detect such an error from twitter so my question is how do I get xcode to recognize an error like this? This uses basic http auth btw and don't mention anything about OAuth...just trying to get this to work for now.

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• The Best Websites for Listening to Podcasts and Learning How to Create Your Own

  - by Lori Kaufman

  Podcasts, or webcasts, are shows about many different topics that are broadcast over the web and broken up into parts, or episodes.  You subscribe to podcasts and new episodes are automatically delivered to you as they are released. We’ve collected the best websites for finding many different types of webcasts and for finding resources to help you in creating and producing your own podcasts. In the coming weeks, we will be publishing other articles about the best websites for educating and entertaining yourself online, such as sites for eBooks, audiobooks, movies and TV shows, documentaries, user-made videos, free online courses, news and information, and music (downloads, streaming, and radio). How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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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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• J2ME's extra annoying HTTP permission prompt

  - by Hans Malherbe

  Some phones only prompt the user for permission the first time a connection is made. Others pop up the permission prompt whenever the MIDlet attempts to make a HTTP connection! What are the options if we want to suppress the prompt? Can we sign the JAR using only one CA (Certificate Authority) and have it work on all devices? Do we have to pay for a signature on every release? Is it an option to create our own CA certificate and tell our customers to install it on there device? Alternatively, it seems that plain socket connections do not suffer so. Is there a free implementation of HTTP on top of TCP for J2ME?

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