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• Wifi randomly drops on Windows 8 laptop

  - by JosiahS

  First of all, I did a lot of research on this problem, and I wasn't able to come to any helpful conclusion. I've finally decided that I need advice from those who might know where to look. So don't let me down. :P I used to have an older Windows 7 laptop, which worked great for basic office and web browsing. However, I wanted something that would play actual modern games. So I recently bought a Sager NP8235 with the Intel Wireless-AC 7260 wifi card, and installed Windows 8 Pro on it. And ever since, I've been having problems with the wifi. Generally, what happens is if I leave the laptop on but inactive for an extended amount of time (I've estimated it around an hour to two), the wifi will start dropping randomly. If I happened to have a download going at the time, it usually causes the download to fail. Or, if I put the laptop to sleep overnight, the next morning I usually have to restart the computer because the wifi device apparently stops working (it literally won't turn on). Also, and most frustrating, whenever I'm on a video chat (like Skype), after about ten minutes, the connection will start lagging like crazy, until it forces Skype to end the call. After that, I usually have to disable and reenable the wifi to get it working again. I know it isn't our internet, because all the other computers in our house (~8) don't have any issues. Even the old Windows 7 laptop (connected also over wifi) works just fine, scoring the normal ~3Mbps average on speedtest.net (yes, I know our internet is slow, we live out in the country). Additionally, when I connect the Sager directly to the router via ethernet, the internet instantly starts working just great. Like I said, I've done a lot of googling to figure out what's going on, and I haven't been able to find anything that worked for me. Is it Windows 8 conflicting with the Wifi drivers? As of this writing, I have the Intel drivers v16.1.5.2 installed (without the extra Intel software). Or is it our router? It's a TP-Link TL-WR841ND, set to the default settings. The Sager is currently being assigned to a static IP, if that makes any difference. And yet, the old windows 7 laptop has a much more stable connection than the Sager. Anyone have any ideas? At this point, I'd appreciate even knowing what the problem is.

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• Network speeds being report as 4x higher than actual in Windows 7 SP1

  - by Synetech

  Ever since installing Windows 7 SP1, I have noticed that all programs that display my network transfer rate have been exactly 4x higher than they actually are. For example, when I download something from a high-bandwidth web site or through torrents with lots of sources, the download rate indicated is is ~5MBps (~40Mbps) even though my Internet connection has a maximum of only 1.5MBps (12Mbps). It is the same situation with the upstream bandwidth: the connection maximum is 64KBps, but I’m seeing up to 256KBps. I have tried several different programs for monitoring bandwidth throughput and they all give the same results. I also tried different times and different days, and they always show the rate as being four times too high. My initial thought was that my ISP had increased the speeds (without my noticing), which they have done before. However, I checked my ISP’s site and they have not increased the speeds. Moreover, when I look at the speeds in the program actually doing the transfer (eg Chrome, µTorrent, etc.), the numbers are in line with the expected values at the same time that bandwidth monitoring programs are showing the high numbers. The only significant change (and pretty much the only change at all) that has occurred to my system since the change was the installation of SP1 for Windows 7. As such, it is my belief that some sort of change exists in SP1 whereby software that accesses the bandwidth via a specific API receives (erroneously?) high numbers while others that have access to the raw data continue to receive the correct values. I booted into Windows XP and downloaded some things via HTTP and torrent and in both cases, the numbers were as expected (like they were in Windows 7 before installing SP1). I then booted back into 7SP1 and once again, the numbers were four times higher than possible. Therefore it is definitely something in SP1 that has changed how local bandwidth is calculated/returned. There is definitely something wonky with Windows 7 SP1’s network speed calculation. I tried Googling this, but (for multiple reasons), have had a difficult time finding anything relevant. Has anybody else noticed this behavior? Does anybody know of any bugs or changes in SP1 that could account for it?

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• Lenovo Windows 8 EFI restore from image

  - by anderhil

  First time here. I have bought e530 with windows 8 and the first hour of work with it i have a problem. I have ssd with windows 7 which i want to use with my new e530. I have made a sysprep of win 7 and installed ssd to the e530. The HDD which was inside e530 i want to use as second hdd instead of my DVD Drive. I connected this HDD through usb-to-sata adapter to copy some files from ssd to the hdd. Unfortunately it didn't see the file system on the HDD (but first time i have booted to it and first boot into Windows 8) I've made some mistakes and i corrupt the filesystem on the hdd. I tried bunch of tricks to recover the GPT, but it didn't work. I have managed to recover the Lenovo_Recovery partition to my ssd using recovery tools. And now I'm stuck, with this new things to me - EFI, GPT, etc i don't how this stuff works, and i have been trying to understand this for hours - but nothing seems to work. I want to restore the Windows 8 to the hdd, so it is there alive. What i have done so far: Formated the HDD I took the PBRALL file from the Lenovo_Recovery " convert gpt create partition Primary size=1000 ID=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC gpt attributes=0x8000000000000001 assign letter=W format quick LABEL=WINRE_DRV create partition efi size=260 assign letter=s format quick fs=fat32 LABEL=SYSTEM_DRV create par msr size=128 create partition primary noerr assign letter=t format quick LABEL=Windows8_OS shrink desired=12197 create partition Primary ID=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC gpt attributes=0x8000000000000001 assign letter=q format quick LABEL=Lenovo_Recovery " it recreated the partitions copied contents of SDRIVE.zip to SYSTEM_DRV partition copied contents of WDRIVE.zip to WINRE_DRV partition Copied restored Lenovo_Recovery back to Lenovo_Recovery partition So now I have 3 system partitions: SYSTE_DRV BOOT boot.sdi EFI BOOT bootx64.efi LenovoBT.efi Lenovo ... Microsoft ... WINRE_DRV\Recovery\WindowsRE\winre.wim Lenovo_Recovery (whic contains install.wim and bunch of other things) So i put back the HDD inside the laptop and tried to boot - but nothing works. It just doesn't boot to anything - no errors - nothing at all. When I choose this HDD manually for boot - just black screen blinks and that's all - it returns back to the devices boot menu. SYSTEM_DRV is EFI partition, so I don't understand why it doesn't boot, it has files needed inside. Can anybody tell me what should be done to make it boot to recovery console or smth like that? How to restore the Windows 8 from the Lenovo_Recovery install.wim image? As I understand I have all the files where they should be, but why it doesn't work? How to troubleshoot such things? Also, if somebody has good link where EFI booting process is explained in details that would be great. Cause i still don't understand how it knows what partition to boot?

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• Windows Forms Host + System.Windows.Forms.DataVisualization.Chart

  - by dark-elf2

  Good day all I have the following question: I would like to use Chart from Windows Forms due to the fact that it allows to build much more types of graphical visualisation that one from WPF Toolkit does. So, I am adding Chart control for Windows Forms as a child element into the WindowsFormsHost. But, when I run the application I and all my clients see only white area. Though, any other Windows Forms Control works great in Windows Forms Host. What is wrong with the Chart control? Here is the XAML code <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:wfi="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration" xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms" xmlns:CHR="clr-namespace:System.Windows.Forms.DataVisualization.Charting;assembly=System.Windows.Forms.DataVisualization" Title="Window1" Height="300" Width="300"> <Grid> <wfi:WindowsFormsHost x:Name="mainFGrid" > <CHR:Chart x:Name="mainChart" /> </wfi:WindowsFormsHost> </Grid> </Window> Kind regards, Anatoliy Sova

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• What should every developer know about databases?

  - by Aaronaught

  Whether we like it or not, many if not most of us developers either regularly work with databases or may have to work with one someday. And considering the amount of misuse and abuse in the wild, and the volume of database-related questions that come up every day, it's fair to say that there are certain concepts that developers should know - even if they don't design or work with databases today. So: What are the important concepts that developers and other software professionals ought to know about databases? Guidelines for Responses: Keep your list short. One concept per answer is best. Be specific. "Data modelling" may be an important skill, but what does that mean precisely? Explain your rationale. Why is your concept important? Don't just say "use indexes." Don't fall into "best practices." Convince your audience to go learn more. Upvote answers you agree with. Read other people's answers first. One high-ranked answer is a more effective statement than two low-ranked ones. If you have more to add, either add a comment or reference the original. Don't downvote something just because it doesn't apply to you personally. We all work in different domains. The objective here is to provide direction for database novices to gain a well-founded, well-rounded understanding of database design and database-driven development, not to compete for the title of most-important.

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• how to get Contact database schema.

  - by kamiomar

  Dear, is there any link that provide me the Contact Schema. when i store new phone number in mobile, the informaion store in the database. so i need schema to create my own table for back purpose. i have alreay get People table column by the follwoing code. boolean displayFlag = false; String str = ""; Uri CONTACT_URI = People.CONTENT_URI; Cursor cursor = mContext.getContentResolver().query(CONTACT_URI, null, null, null, null); String columnNames = ""; if (cursor != null) { try { cursor.getCount(); if (cursor.moveToFirst()) { String[] columns = cursor.getColumnNames(); for (int i = 0; i < columns.length; i++) { columnNames += "colName" + cursor.getColumnName(i) + " : " + cursor.getString(i) + "colValue"; } } } finally { cursor.close(); } } createImage(columnNames); if (displayFlag) { Toast.makeText(mContext, str, Toast.LENGTH_SHORT).show(); } } Thanks

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• How to log out from the Facebook in windows phone 7 using facebook api?

  - by Vijay

  I am trying to add Facebook into my application. I have try with a sample. public class FacebookLoginPageViewModel { private static WebBrowser _webBrowser; private Page _page; private const string ExtendedPermissions = "user_about_me,read_stream,publish_stream,user_birthday,offline_access,email"; private readonly FacebookClient _fb = new FacebookClient(); private const string AppId = "1XXX58XXXXXXXX9"; Uri url; public FacebookLoginPageViewModel(Panel container, Page page) { _page = page; _webBrowser = new WebBrowser(); var loginUrl = GetFacebookLoginUrl(AppId, ExtendedPermissions); url = loginUrl; container.Children.Add(_webBrowser); _webBrowser.Navigated += webBrowser_Navigated; _webBrowser.Navigate(loginUrl); } private Uri GetFacebookLoginUrl(string appId, string extendedPermissions) { var parameters = new Dictionary<string, object>(); parameters["client_id"] = appId; parameters["redirect_uri"] = "https://www.facebook.com/connect/login_success.html"; parameters["response_type"] = "token"; parameters["display"] = "touch"; // add the 'scope' only if we have extendedPermissions. if (!string.IsNullOrEmpty(extendedPermissions)) { // A comma-delimited list of permissions parameters["scope"] = extendedPermissions; } return _fb.GetLoginUrl(parameters); } void webBrowser_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e) { FacebookOAuthResult oauthResult; if (!_fb.TryParseOAuthCallbackUrl(e.Uri, out oauthResult)) { return; } if (oauthResult.IsSuccess) { var accessToken = oauthResult.AccessToken; LoginSucceded(accessToken); } else { // user cancelled MessageBox.Show(oauthResult.ErrorDescription); } } private void LoginSucceded(string accessToken) { var fb = new FacebookClient(accessToken); fb.GetCompleted += (o, e) => { if (e.Error != null) { Deployment.Current.Dispatcher.BeginInvoke(() => { MessageBox.Show(e.Error.Message); return; }); } var result = (IDictionary<string, object>)e.GetResultData(); var id = (string)result["id"]; var url = string.Format("/Views/FacebookInfoPage.xaml?access_token={0}&id={1}", accessToken, id); var rootFrame = (App.Current as App).RootFrame; Deployment.Current.Dispatcher.BeginInvoke(() => { rootFrame.Navigate(new Uri(url, UriKind.Relative)); }); }; fb.GetAsync("me?fields=id"); } This is working fine. But i want to Log out from the facebook when i click log out. How to achieve this? I have try with some examples. But it is not working for me. private void logout(object sender, RoutedEventArgs e) { webBrowser1.Navigated += new EventHandler<System.Windows.Navigation.NavigationEventArgs>(CheckForout); webBrowser1.Navigate(new Uri("http://m.facebook.com/logout.php?confirm=1")); webBrowser1.Visibility = Visibility.Visible; } private void CheckForout(object sender, System.Windows.Navigation.NavigationEventArgs e) { string fbLogoutDoc = webBrowser1.SaveToString(); Regex regex = new Regex ("\\<a href=\\\"/logout(.*)\\\".*data-sigil=\\\"logout\\\""); MatchCollection matches = regex.Matches(fbLogoutDoc); if (matches.Count > 0) { string finalLogout = string.Format("http://m.facebook.com/logout{0}", matches[0].Groups[1].ToString().Replace("amp;", "")); webBrowser1.Navigate(new Uri(finalLogout)); } } Please let me any idea to resolve this problem.

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• Install XP Mode with VirtualBox Using the VMLite Plugin

  - by Mysticgeek

  Would you like to run XP Mode, but prefer Sun’s VirtualBox for virtualization?  Thanks to the free VMLite plugin, you can quickly and easily run XP Mode in or alongside VirtualBox. Yesterday we showed you one method to install XP Mode in VirtualBox, unfortunately in that situation you lose XP’s activation, and it isn’t possible to reactivate it. Today we show you a tried and true method for running XP mode in VirtualBox and integrating it seamlessly with Windows 7. Note: You need to have Windows 7 Professional or above to use XP Mode in this manner. Install XP Mode Make sure you’re logged in with Administrator rights for the entire process. The first thing you’ll want to do is install XP Mode on your system (link below). You don’t need to install Windows Virtual PC. Go through and install XP Mode using the defaults. Install VirtualBox Next you’ll need to install VirtualBox 3.1.2 or higher if it isn’t installed already. If you have an older version of VirtualBox installed, make sure to update it. During setup you’re notified that your network connection will be reset. Check the box next to Always trust software from “Sun Microsystems, Inc.” then click Install.   Setup only takes a couple of minutes, and does not require a reboot…which is always nice. Install VMLite XP Mode Plugin The next thing we’ll need to install is the VMLite XP Mode Plugin. Again Installation is simple following the install wizard. During the install like with VirtualBox you’ll be asked to install the device software. After it’s installed go to the Start menu and run VMLite Wizard as Administrator. Select the location of the XP Mode Package which by default should be in C:\Program Files\Windows XP Mode. Accept the EULA…and notice that it’s meant for Windows 7 Professional, Enterprise, and Ultimate editions. Next, name the machine, choose the install folder, and type in a password. Select if you want Automatic Updates turned on or not. Wait while the process completes then click Finish.   The VMLite XP Mode will set up to run the first time. That is all there is to this section. You can run XP Mode from within the VMLite Workstation right away. XP Mode is fully activated already, and the Guest Additions are already installed, so there’s nothing else you need to do!  XP Mode is the whole way ready to use. Integration with VirtualBox Since we installed the VMLite Plugin, when you open VirtualBox you’ll see it listed as one of your machines and you can start it up from here.   Here we see VMLite XP Mode running in Sun VirtualBox. Integrate with Windows 7 To integrate it with Windows 7 click on Machine \ Seamless Mode…   Here you can see the XP menu and Taskbar will be placed on top of Windows 7. From here you can access what you need from XP Mode.   Here we see XP running on Virtual Box in Seamless Mode. We have the old XP WordPad sitting next to the new Windows 7 version of WordPad. This works so seamlessly you forget if your working in XP or Windows 7. In this example we have Windows Home Server Console running in Windows 7, while installing MSE from IE 6 in XP Mode. At the top of the screen you will still have access to the VMs controls.   You can click the button to exit Seamless Mode, or simply hit the right “CTRL+L” Conclusion This is a very slick way to run XP Mode in VirtualBox on any machine that doesn’t have Hardware Virtualization. This method also doesn’t lose the XP Mode activation and is actually extremely easy to set up. If you prefer VMware (like we do), Check out how to run XP Mode on machines without Hardware Virtualization capability, and also how to create an XP Mode for Vista and Windows 7 Home Premium. Links Download XP Mode Download VirtualBox Download VMLite XP Mode Plugin for VirtualBox (Site Registration Required) Similar Articles Productive Geek Tips Search for Install Packages from the Ubuntu Command LineHow To Run XP Mode in VirtualBox on Windows 7 (sort of)Install and Use the VLC Media Player on Ubuntu LinuxInstall Monodevelop on Ubuntu LinuxInstall Flash Plugin Manually in Firefox on Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Enable Check Box Selection in Windows 7 OnlineOCR – Free OCR Service Betting on the Blind Side, a Vanity Fair article 30 Minimal Logo Designs that Say More with Less LEGO Digital Designer – Free Create a Personal Website Quickly using Flavors.me

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• Install XP Mode with VirtualBox Using the VMLite Plugin

  - by Mysticgeek

  Would you like to run XP Mode, but prefer Sun’s VirtualBox for virtualization?  Thanks to the free VMLite plugin, you can quickly and easily run XP Mode in or alongside VirtualBox. Yesterday we showed you one method to install XP Mode in VirtualBox, unfortunately in that situation you lose XP’s activation, and it isn’t possible to reactivate it. Today we show you a tried and true method for running XP mode in VirtualBox and integrating it seamlessly with Windows 7. Note: You need to have Windows 7 Professional or above to use XP Mode in this manner. Install XP Mode Make sure you’re logged in with Administrator rights for the entire process. The first thing you’ll want to do is install XP Mode on your system (link below). You don’t need to install Windows Virtual PC. Go through and install XP Mode using the defaults. Install VirtualBox Next you’ll need to install VirtualBox 3.1.2 or higher if it isn’t installed already. If you have an older version of VirtualBox installed, make sure to update it. During setup you’re notified that your network connection will be reset. Check the box next to Always trust software from “Sun Microsystems, Inc.” then click Install.   Setup only takes a couple of minutes, and does not require a reboot…which is always nice. Install VMLite XP Mode Plugin The next thing we’ll need to install is the VMLite XP Mode Plugin. Again Installation is simple following the install wizard. During the install like with VirtualBox you’ll be asked to install the device software. After it’s installed go to the Start menu and run VMLite Wizard as Administrator. Select the location of the XP Mode Package which by default should be in C:\Program Files\Windows XP Mode. Accept the EULA…and notice that it’s meant for Windows 7 Professional, Enterprise, and Ultimate editions. Next, name the machine, choose the install folder, and type in a password. Select if you want Automatic Updates turned on or not. Wait while the process completes then click Finish.   The VMLite XP Mode will set up to run the first time. That is all there is to this section. You can run XP Mode from within the VMLite Workstation right away. XP Mode is fully activated already, and the Guest Additions are already installed, so there’s nothing else you need to do!  XP Mode is the whole way ready to use. Integration with VirtualBox Since we installed the VMLite Plugin, when you open VirtualBox you’ll see it listed as one of your machines and you can start it up from here.   Here we see VMLite XP Mode running in Sun VirtualBox. Integrate with Windows 7 To integrate it with Windows 7 click on Machine \ Seamless Mode…   Here you can see the XP menu and Taskbar will be placed on top of Windows 7. From here you can access what you need from XP Mode.   Here we see XP running on Virtual Box in Seamless Mode. We have the old XP WordPad sitting next to the new Windows 7 version of WordPad. This works so seamlessly you forget if your working in XP or Windows 7. In this example we have Windows Home Server Console running in Windows 7, while installing MSE from IE 6 in XP Mode. At the top of the screen you will still have access to the VMs controls.   You can click the button to exit Seamless Mode, or simply hit the right “CTRL+L” Conclusion This is a very slick way to run XP Mode in VirtualBox on any machine that doesn’t have Hardware Virtualization. This method also doesn’t lose the XP Mode activation and is actually extremely easy to set up. If you prefer VMware (like we do), Check out how to run XP Mode on machines without Hardware Virtualization capability, and also how to create an XP Mode for Vista and Windows 7 Home Premium. Links Download XP Mode Download VirtualBox Download VMLite XP Mode Plugin for VirtualBox (Site Registration Required) Similar Articles Productive Geek Tips Search for Install Packages from the Ubuntu Command LineHow To Run XP Mode in VirtualBox on Windows 7 (sort of)Install and Use the VLC Media Player on Ubuntu LinuxInstall Monodevelop on Ubuntu LinuxInstall Flash Plugin Manually in Firefox on Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Enable Check Box Selection in Windows 7 OnlineOCR – Free OCR Service Betting on the Blind Side, a Vanity Fair article 30 Minimal Logo Designs that Say More with Less LEGO Digital Designer – Free Create a Personal Website Quickly using Flavors.me

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• SQL SERVER – FIX : ERROR : 4214 BACKUP LOG cannot be performed because there is no current database

  - by pinaldave

  I recently got following email from one of the reader. Hi Pinal, Even thought my database is in full recovery mode when I try to take log backup I am getting following error. BACKUP LOG cannot be performed because there is no current database backup. (Microsoft.SqlServer.Smo) How to fix it? Thanks, [name and email removed as requested] Solution / Fix: This error can happen when you have never taken full backup of your database and you try to attempt to take backup of the log only. Take full backup once and attempt to take log back up. If the name of your database is MyTestDB follow procedure as following. BACKUP DATABASE [MyTestDB] TO DISK = N'C:\MyTestDB.bak' GO BACKUP LOG [MyTestDB] TO DISK = N'C:\MyTestDB.bak' GO Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Backup and Restore, SQL Error Messages, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: SQL Log

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• CakePHP Missing Database Table Error

  - by BRADINO

  I am baking a new project management application at work and added a couple new tables to the database today. When I went into the console to bake the new models, they were not in the list... php /path/cake/console/cake.php bake all -app /path/app/ So I manually typed in the model name and I got a missing database table for model error. I checked and double-checked and the database table was named properly. Turns out that some files inside the /app/tmp/cache/ folder were causing Cake not to recognize that I had added new tables to my database. Once I deleted the cache files cake instantly recognized my new database tables and I was baking away! rm -Rf /path/app/tmp/cache/cake*

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• PHP OCI8 and Oracle 11g DRCP Connection Pooling in Pictures

  - by christopher.jones

  Here is a screen shot from a PHP OCI8 connection pooling demo that I like to run. It graphically shows how little database host memory is needed when using DRCP connection pooling with Oracle Database 11g. Migrating to DRCP can be as simple as starting the pool and changing the connection string in your PHP application. The script that generated the data for this graph was a simple "Parts" query application being run under various simulated user loads. I was running the database on a small Oracle Linux server with just 2G of memory. I used PHP OCI8 1.4. Apache is in pre-fork mode, as needed for PHP. Each graph has time on the horizontal access in arbitrary 'tick' time units. Click the image to see it full sized. Pooled connections Beginning with the top left graph, At tick time 65 I used Apache's 'ab' tool to start 100 concurrent 'users' running the application. These users connected to the database using DRCP: $c = oci_pconnect('phpdemo', 'welcome', 'myhost/orcl:pooled'); A second hundred DRCP users were added to the system at tick 80 and a final hundred users added at tick 100. At about tick 110 I stopped the test and restarted Apache. This closed all the connections. The bottom left graph shows the number of statements being executed by the database per second, with some spikes for background database activity and some variability for this small test. Each extra batch of users adds another 'step' of load to the system. Looking at the top right Server Process graph shows the database server processes doing the query work for each web user. As user load is added, the DRCP server pool increases (in green). The pool is initially at its default size 4 and quickly ramps up to about (I'm guessing) 35. At tick time 100 the pool increases to my configured maximum of 40 processes. Those 40 processes are doing the query work for all 300 web users. When I stopped the test at tick 110, the pooled processes remained open waiting for more users to connect. If I had left the test quiet for the DRCP 'inactivity_timeout' period (300 seconds by default), the pool would have shrunk back to 4 processes. Looking at the bottom right, you can see the amount of memory being consumed by the database. During the initial quiet period about 500M of memory was in use. The absolute number is just an indication of my particular DB configuration. As the number of pooled processes increases, each process needs more memory. You can see the shape of the memory graph echoes the Server Process graph above it. Each of the 300 web users will also need a few kilobytes but this is almost too small to see on the graph. Non-pooled connections Compare the DRCP case with using 'dedicated server' processes. At tick 140 I started 100 web users who did not use pooled connections: $c = oci_pconnect('phpdemo', 'welcome', 'myhost/orcl'); This connection string change is the only difference between the two tests. At ticks 155 and 165 I started two more batches of 100 simulated users each. At about tick 195 I stopped the user load but left Apache running. Apache then gradually returned to its quiescent state, killing idle httpd processes and producing the downward slope at the right of the graphs as the persistent database connection in each Apache process was closed. The Executions per Second graph on the bottom left shows the same step increases as for the earlier DRCP case. The database is handling this load. But look at the number of Server processes on the top right graph. There is now a one-to-one correspondence between Apache/PHP processes and DB server processes. Each PHP processes has one DB server processes dedicated to it. Hence the term 'dedicated server'. The memory required on the database is proportional to all those database server processes started. Almost all my system's memory was consumed. I doubt it would have coped with any more user load. Summary Oracle Database 11g DRCP connection pooling significantly reduces database host memory requirements allow more system memory to be allocated for the SGA and allowing the system to scale to handled thousands of concurrent PHP users. Even for small systems, using DRCP allows more web users to be active. More information about PHP and DRCP can be found in the PHP Scalability and High Availability chapter of The Underground PHP and Oracle Manual.

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• GitHub Integration in Windows Azure Web Site

  - by Shaun

  Microsoft had just announced an update for Windows Azure Web Site (a.k.a. WAWS). There are four major features added in WAWS which are free scaling mode, GitHub integration, custom domain and multi branches. Since I ‘m working in Node.js and I would like to have my code in GitHub and deployed automatically to my Windows Azure Web Site once I sync my code, this feature is a big good news to me.   It’s very simple to establish the GitHub integration in WAWS. First we need a clean WAWS. In its dashboard page click “Set up Git publishing”. Currently WAWS doesn’t support to change the publish setting. So if you have an existing WAWS which published by TFS or local Git then you have to create a new WAWS and set the Git publishing. Then in the deployment page we can see now WAWS supports three Git publishing modes: - Push my local files to Windows Azure: In this mode we will create a new Git repository on local machine and commit, publish our code to Windows Azure through Git command or some GUI. - Deploy from my GitHub project: In this mode we will have a Git repository created on GitHub. Once we publish our code to GitHub Windows Azure will download the code and trigger a new deployment. - Deploy from my CodePlex project: Similar as the previous one but our code would be in CodePlex repository.   Now let’s back to GitHub and create a new publish repository. Currently WAWS GitHub integration only support for public repositories. The private repositories support will be available in several weeks. We can manage our repositories in GitHub website. But as a windows geek I prefer the GUI tool. So I opened the GitHub for Windows, login with my GitHub account and select the “github” category, click the “add” button to create a new repository on GitHub. You can download the GitHub for Windows here. I specified the repository name, description, local repository, do not check the “Keep this code private”. After few seconds it will create a new repository on GitHub and associate it to my local machine in that folder. We can find this new repository in GitHub website. And in GitHub for Windows we can also find the local repository by selecting the “local” category.   Next, we need to associate this repository with our WAWS. Back to windows developer portal, open the “Deploy from my GitHub project” in the deployment page and click the “Authorize Windows Azure” link. It will bring up a new windows on GitHub which let me allow the Windows Azure application can access your repositories. After we clicked “Allow”, windows azure will retrieve all my GitHub public repositories and let me select which one I want to integrate to this WAWS. I selected the one I had just created in GitHub for Windows. So that’s all. We had completed the GitHub integration configuration. Now let’s have a try. In GitHub for Windows, right click on this local repository and click “open in explorer”. Then I added a simple HTML file. 1: <html> 2: <head> 3: </head> 4: <body> 5: <h1> 6: I came from GitHub, WOW! 7: </h1> 8: </body> 9: </html> Save it and back to GitHub for Windows, commit this change and publish. This will upload our changes to GitHub, and Windows Azure will detect this update and trigger a new deployment. If we went back to azure developer portal we can find the new deployment. And our commit message will be shown as the deployment description as well. And here is the page deployed to WAWS.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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• Apache cannot find mysql database modules

  - by user809857

  I've created a simple django project and setup a mysql database. My simple project just creates an entry on the database. The project works fine when I use the built in development server provided by django (runserver) and it works well. But when I deployed the project on Apache and mod_Wsgi (Ubuntu server), django could not find 'books', which is in this case my table in the database. The mysql database that I use in runserver and apache are just the same. I also did rebuild the database using sqlall,validate and syncdb of django but still i get the error. What could be wrong with what I'm doing? Thanks

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• Support for Windows 2000 Professional and Server to be dropped

  - by Testas

  Windows 2000 Professional and Windows 2000 Server are approaching 10 years since their launch and both products will go out of support on July 13, 2010. Windows XP was launched back in 2001. While support for the product will continue, Service Pack 2 will go out of support on July 13, 2010. From that date onwards, Microsoft will no longer support or provide free security updates for Windows XP SP2.  Please install the free Service Pack 3 for Windows XP to have the most secure and supported Windows XP platform.Finally, Windows Vista with no Service Packs installed will end support on April 13 2010.  Please install the free Service Pack 2 for Windows Vista to have the most secure and supported Windows Vista platform.   This may have implications for older version of SQL Server that are installed on these products and you should assess whether it is time to upgrade   Chris

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• Apache cannot find mysql database modules

  - by user809857

  I've created a simple django project and setup a mysql database. My simple project just creates an entry on the database. The project works fine when I use the built in development server provided by django (runserver) and it works well. But when I deployed the project on Apache and mod_Wsgi (Ubuntu server), django could not find 'books', which is in this case my table in the database. The mysql database that I use in runserver and apache are just the same. I also did rebuild the database using sqlall,validate and syncdb of django but still i get the error. What could be wrong with what I'm doing? Thanks

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• Oracle Database 12c

  - by jgelhaus

  What's your pain? Cost of IT and downtime, Complexity of IT, Poor database application performance? All of the above and more? These are real challenges caused by today's demands on data centers and their IT teams.  Oracle Database 12c provides a breakthrough architecture that makes it easy to deploy and manage databases in the cloud. Oracle partners will leverage Database 12c innovation to provide additional options for Oracle customer success and ROI. Download Oracle Database 12c and plug into the cloud! Join us for our July 10th webcast to learn about this database breakthrough.

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• Lower Your Application Infrastructure Costs w/Oracle Database 11g

  - by john.brust

  Oracle Database 11g is designed to support enterprise applications, including Oracle E-Business Suite, Oracle PeopleSoft, and Oracle Siebel. And every Oracle customer can benefit from the performance, reliability, and security that Oracle Database 11g brings to these applications. Plus, Oracle Database 11g, helps you drive down your IT infrastructure costs. Join us next Friday for a webcast conversation with database expert Mark Townsend, Vice President of Oracle's Server Technology Division, to learn how you can benefit from running your applications on Oracle Database 11g. At the end of the presentation, we'll open up for live Q&A for approximately 30 minutes. Register now for our Friday, April 23rd, 2010 9:30am PT | 12:30pm ET live webcast.

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• How should calculations be handled in a document database

  - by Morten

  Ok, so I have a program that basically logs errors into a nosql database. Right now there is just a single model for an error and its stored as a document in the nosql database. Basically I want to summarize across different errors and produce a summary of the "types" of errors that occured. Traditionally in a SQL database the this normalization would work with groupings, sums and averages but in a NoSQL database I assume I need to use mapreduce. My current model seems unfit for the task, how should I change the way I store "models" in order to make statistical analysis easy? Would a NoSQL database even be the right tool for this type of problem? I'm storing things in Google AppEngine's BigTable, so there are some limitations to think of as well.

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• Podcast: Dell Perot Systems Relies on Oracle In-Memory Database Cache

  - by john.brust

  Recently we spoke with Bill Binko, Technology Consultant at Dell Perot Systems, about a high volume web-based content delivery system they implemented for a client with Oracle In-Memory Database Cache. Their client needed to respond to ~1 billion hits (web requests) per day, but hadn't been able to support this load. Oracle In-Memory Database Cache allowed for multiple & complicated queries to take place without ever hitting the disk...providing sub-millisecond response time and ability to manage much higher high volumes of data. Old System: Old SQL Server Database, over 300 servers, difficult to maintain. New System: One Oracle Database 11g instance, multiple Oracle RAC nodes, backed up by Oracle Data Guard, and Oracle In-Memory Database Cache to cut query response times by 10x. Listen to the podcast.

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• 9/18 Live Webcast: Three Compelling Reasons to Upgrade to Oracle Database 11g

  - by jgelhaus

  Webcast: Three Compelling Reasons to Upgrade to Oracle Database 11g Date: Tuesday, September 18, 2012 Time: 10 a.m. PT/1 p.m. ET If you or your organization is still working with Oracle Database 10g or an even older version, now is the time to upgrade. Oracle Database 11g offers a wide variety of advantages to enhance your operation. Join us for this live Webcast and learn about what you’re missing: the business, operational, and technical benefits. With Oracle Database 11g, you can: Upgrade with zero downtime Improve application performance and database security Reduce the amount of storage required Save time and money Register today here

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• Eliminating Downtime During Database Upgrades: A Customer Case Study

  - by irem.radzik(at)oracle.com

  Planned outages, such as database, OS, hardware upgrades and migrations, are a fact of life. Even though they are "planned" and many of them are performed during "off business hours", they can still interrupt operations-- especially for global operations and online businesses. For this reason many IT organizations postpone these critical infrastructure improvement projects, which in turn result in delays in advancing business operations. This week, on Thursday January 13th, we will host a free webcast on this topic, and will feature Oracle GoldenGate's customer Atmos Energy. Atmos Energy implemented Oracle GoldenGate for eliminating downtime during their database upgrade from Oracle Database 8.1.7 to Oracle Database 11.1.0.7. Jos Francis, Lead DBA for Atmos, and Ronald Nedd, Sr. DBA for Atmos, will be presenting their database upgrade project and their solution architecture. Join us at this live webcast and hear from our customer and product management how to eliminate planned outages with Oracle GoldenGate's real-time, heterogeneous data replication capabilities.

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• Building ASP.NET Web Forms to Use a MySQL Database

  The MySQL database is the best open source database which means it can be used for free without obtaining or paying for a license. In ASP.NET 3.5 hosting there are some hosting packages that let you use the MySQL database because it can be a cheaper hosting alternative when compared to using the MS SQL database. However things can be a bit complicated when querying a MySQL database in an ASP.NET environment.... Advance Your IT Career Online IT Degree Programs. Advance Your IT Career While You Work. Search now.

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• sd card won't mount when an android phone is connected after 12.10 fresh install

  - by Mysterio

  I just upgraded to 12.10 via a fresh install. Mounting my Xperia Neo V in 12.04 worked flawlessly however I just discovered that the sd card can't be detected and mounted in 12.10. How can I solve this? Thanks in advance. P. S. I can mount it via a card reader though and it mounts ok in Windows 7. So it surely can't be hardware related. EDIT: Sony Ericsson Neo V running Android 2.3.4. USB mass storage is already turned on.

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• Webcast Series: Accelerate Business-Critical Database Deployments with Oracle Optimized Solutions

  - by ferhat

  Join us for this two-part Webcast series and learn how to safely consolidate business-critical databases and deliver quantifiable benefits to the business: Save up to 75% in operational and acquisition costs Save millions of dollars consolidating legacy infrastructure Leverage best practices from thousands of customer environments Increase end user productivity with 75% faster time to operations and 4x faster throughput   The Oracle Optimized Solution for Oracle Database  provides extensive guidelines for architecting and deploying complete database solutions that deliver superior performance and availability while minimizing cost and risk. Oracle’s world-class engineering teams work together to define these optimal architectures using Oracle's powerful SPARC M-Series and SPARC T-Series servers together with Oracle Solaris and Oracle's SAN, NAS, and flash-based storage to run the industry-leading Oracle Database. Quite simply, the Oracle Optimized Solution for Oracle Database makes it easier for you to deliver and manage business critical database environments that are fast, secure and cost-effective. Available On-Demand PART 1: Why Architecture Matters When Deploying Business-Critical Databases PART 2: How To Consolidate Databases Using Oracle Optimized Solutions   Presented by: Lawrence McIntosh, Principal Enterprise Architect, Oracle Optimized Solutions Ken Kutzer, Principal Product Manager, Infrastructure Solutions, Oracle  

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