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• Multiple SQL Standard Instances on 4 Processor/32-core Server

  - by Theowood

  We have a large 4 processor/32-core server with 192GB of memory available in the data center and over twenty small SQL Standard databases to consolidate. They are a mix of SQL 2012 and 2008 R2 for 3rd-party apps. Is there any issue with simply installing two instances of SQL Standard on the server - one for 2012 and one for 2008 R2 ? Each instance will use up to 64GB out of the 192GB and 16 cores. If we did this with Enterprise, the licensing would be a fortune and the Enterprise features are not needed.

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• Append data to same text file

  - by Manu

  SimpleDateFormat formatter = new SimpleDateFormat("ddMMyyyy_HHmmSS"); String strCurrDate = formatter.format(new java.util.Date()); String strfileNm = "Customer_" + strCurrDate + ".txt"; String strFileGenLoc = strFileLocation + "/" + strfileNm; String Query1="select '0'||to_char(sysdate,'YYYYMMDD')||'123456789' class_code from dual"; String Query2="select '0'||to_char(sysdate,'YYYYMMDD')||'123456789' class_code from dual"; try { Statement stmt = null; ResultSet rs = null; Statement stmt1 = null; ResultSet rs1 = null; stmt = conn.createStatement(); stmt1 = conn.createStatement(); rs = stmt.executeQuery(Query1); rs1 = stmt1.executeQuery(Query2); File f = new File(strFileGenLoc); OutputStream os = (OutputStream)new FileOutputStream(f,true); String encoding = "UTF8"; OutputStreamWriter osw = new OutputStreamWriter(os, encoding); BufferedWriter bw = new BufferedWriter(osw); while (rs.next() ) { bw.write(rs.getString(1)==null? "":rs.getString(1)); bw.write(" "); } bw.flush(); bw.close(); } catch (Exception e) { System.out.println( "Exception occured while getting resultset by the query"); e.printStackTrace(); } finally { try { if (conn != null) { System.out.println("Closing the connection" + conn); conn.close(); } } catch (SQLException e) { System.out.println( "Exception occured while closing the connection"); e.printStackTrace(); } } return objArrayListValue; } The above code is working fine. it writes the content of "rs" resultset data in text file Now what i want is ,i need to append the the content in "rs2" resultset to the "same text file"(ie . i need to append "rs2" content with "rs" content in the same text file)..

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• If not following correct procedure?

  - by ct2k7

  Hi, I'm working on a Content Management System, and so far so good. I'm trying to get the system to work with a maintenance mode system. This is the code in the script to display the maintenance stuff: if ($maintenance['value'] == "1") {?> <div id="content"> <div id="errmsg"> <?php echo $maintenance['notes']; ?> </div> </div> <? } else {?> <h1><?php echo $title; ?></h1> <hr /><br /> <div id="content"> <?php echo $contents; if (!$content) { include ('includes/error/404.php');}?> </div> <? } ?> I can verify that the $maintenance['value'] variable is working as it should, but this portion o the script isn't working as it should. The value is currently set to 1, but it still displays the stuff in the else. Any ideas?

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• Why might this work on my server but not my schools?

  - by Doug

  I created a captcha just now, and it works PERFECTLY on my own server. On the school's server, it doesn't generate an image. Why might this be? The difference in code is one line. *Edit:*Originally, it was working, but I deleted the directory by mistake and I do not know why did it suddenly work in the first place. Source code on school server: <?php session_save_path("/ichanged/this/path/for/this/post/"); session_start(); $img=imagecreatefromjpeg("bg.jpg"); if( empty($_SESSION['captcha_numbers']) ) { $captcha_numbers = 'error'; } else { $captcha_numbers = $_SESSION['captcha_numbers']; } $image_numbers=$captcha_numbers; $red=rand(100,150); $green=rand(100,255); $blue=rand(100,255); $color=imagecolorallocate($img,255-$red,255-$green,255-$blue); $text=imagettftext($img,12,rand(-7,7),rand(10,20),rand(20,30),$color,"fonts/M04.TTF",$image_numbers); header("Content-type:image/jpeg"); header("Content-Disposition:inline ; filename=secure.jpg"); imagejpeg($img); ?> Source code on my server: <?php session_start(); $img=imagecreatefromjpeg("bg.jpg"); if( empty($_SESSION['captcha_numbers']) ) { $captcha_numbers = 'error'; } else { $captcha_numbers = $_SESSION['captcha_numbers']; } $image_numbers=$captcha_numbers; $red=rand(100,150); $green=rand(100,255); $blue=rand(100,255); $color=imagecolorallocate($img,255-$red,255-$green,255-$blue); $text=imagettftext($img,12,rand(-7,7),rand(10,20),rand(20,30),$color,"fonts/M04.TTF",$image_numbers); header("Content-type:image/jpeg"); header("Content-Disposition:inline ; filename=secure.jpg"); imagejpeg($img); ?>

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• Pass a variable from the source file to an included file in PHP

  - by Alpha1

  For my website I want to store the general format of the site in a single PHP file in a single location, and each of the different pages content in the local location of the page. I then want to pass the title and content address to the included file via a variable. However I can't get the included format file to read the variables storing the title and content data. AKA, the called file for the individual page would be: <?php $title = 'Some Title'; $source_file = 'content.php'; readfile('http:...../format.php'); ?> The format file would be: <html> ... <title> <?php echo $title; ?> </title> ... <?php include($source_file); ?> ... I recall reading somewhere I need to include something to get the variables at the start of the format file, however I can't remember what it is or find where I found that information.

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• Remotely Managing Storage on Hyper-V 2012 Core

  - by Vazgen

  I have a core Hyper-V Server 2012 that I am remotely managing from a Windows 8 client. I can connect in Hyper-V Manager, Server Manager, and MMC. However, I don't understand how I can manage the physical hard drive (for ex, deleting vhdx files, creating folders, etc) from my Windows 8 client. I tried to attach the remote share as follows: q: \\MyServer\c$ It said command completed successfully, but I don't see the drive on my client's Explorer. I can get to it in cmd.exe on the client but how can I manage it in a GUI? explorer q: Throws error:

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• Strange numbers in java socket output

  - by user293163

  I have small test app: Socket socket = new Socket("jeck.ru", 80); PrintWriter pw = new PrintWriter(socket.getOutputStream(), false); pw.println("GET /ip/ HTTP/1.1"); pw.println("Host: jeck.ru"); pw.println(); pw.flush(); BufferedReader rd = new BufferedReader(new InputStreamReader(socket.getInputStream())); String str; while ((str = rd.readLine()) != null) { System.out.println(str); } It`s output: HTTP/1.1 200 OK Date: Sat, 13 Mar 2010 22:06:51 GMT Content-Type: text/html;charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Keep-Alive: timeout=5 Server HTTP/1.1 200 OK Date: Sat, 13 Mar 2010 22:06:51 GMT Content-Type: text/html;charset=utf-8 Transfer-Encoding: chunked Connection: keep-alive Keep-Alive: timeout=5 Server: Apache Cache-Control: max-age=0 Expires: Sat, 13 Mar 2010 22:06:51 GMT 123 <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>??? IP</title> </head> <body> <div style='text-align: center; font: 32pt Verdana;margin-top: 300px'> ??? IP &#151; 94.103.87.153 </div> </body> </html> 0 Whence these numbers (123 an 0) takes?

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• PHP generating csv not sending correct new line feeds

  - by sjw

  I have a script that generates a csv file using the following code: header('Content-type: text/csv'); header('Content-Disposition: attachment; filename="'.date("Ymdhis").'.csv"'); print $content; The $content variable simply contains lines with fields separated by commas and then finalised with ."\n"; to generate a new line. When I open the file in csv it looks fine however, when I try to use the file to import into an external program (MYOB) it does not recognise the End Of Line (\n) character and assumes one long line of text. When I view the contents of the file in notepad, the end of line character (\n) is a small rectangle box which looks like the character code 0x7F. If I open the file and re-save it in excel, it removes this character and replaces it with a proper end of line character and I can import the file. What character do I need to be generating in PHP so that notepad recognises it as a valid End Of Line character? (\n) obviously doesn't do the job.

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• mysql get table based on common column between two tables

  - by Zentdayn

  while trying to learn sql i came across "Learn SQL The Hard Way" and i started reading it. Everything was going fine then i thought ,as a way to practice, to make something like given example in the book (example consists in 3 tables pet,person,person_pet and the person_pet table 'links' pets to their owners). I made this: report table +----+-------------+ | id | content | +----+-------------+ | 1 | bank robbery| | 2 | invalid | | 3 | cat on tree | +----+-------------+ notes table +-----------+--------------------+ | report_id | content | +-----------+--------------------+ | 1 | they had guns | | 3 | cat was saved | +-----------+--------------------+ wanted result +-----------+--------------------+---------------+ | report_id | report_content | report_notes | +-----------+--------------------+---------------+ | 1 | bank robbery | they had guns | | 2 | invalid | null or '' | | 3 | cat on tree | cat was saved | +-----------+--------------------+---------------+ I tried a few combinations but no success. My first thought was SELECT report.id,report.content AS report_content,note.content AS note_content FROM report,note WHERE report.id = note.report_id but this only returns the ones that have a match (would not return the invalid report). after this i tried adding IF conditions but i just made it worse. My question is, is this something i will figure out after getting past basic sql or can this be done in simple way? Anyway i would appreciate any help, i pretty much lost with this. Thank you. EDIT: i have looked into related questions but havent yet found one that solves my problem. I probably need to look into other statements such as join or something to sort this out.

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• How to automatically show Title of the Entries/Articles in the Browser Title Bar in ExpressionEngine 2?

  - by Ibn Saeed

  How would I output the title of an entry in ExpressionEngine and display it in the browser's title bar? Here is the content of my page's header: <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test Site</title> <link rel="stylesheet" href="{stylesheet=site/site_css}" type="text/css" media="screen" /> </head> What I need is for each page to display the title of the entry in my browser's title bar — how can I achieve that? Part of UPDATED Code: Here is how i have done it : {exp:channel:entries channel="news_articles" status="open|Featured Top Story|Top Story" limit="1" disable="member_data|trackbacks|pagination"} {embed="includes/document_header" page_title=" | {title}"} <body class="home"> <div id="layoutWrapper"> {embed="includes/masthead_navigation"} <div id="content"> <div id="article"> <img src="{article_image}" alt="News Article Image" /> <h4>{title}</h4> <h5><span class="by">By</span> {article_author}</h5> <p>{entry_date format="%M %d, %Y"} -- Updated {gmt_edit_date format="%M %d, %Y"}</p> {article_body} {/exp:channel:entries} </div> What do you think?

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• How many websites can my server potentially hold?

  - by Daniel Kindler

  Sorry for the "noob" question, but... About how many medium-sized websites with average traffic could this server hold? Just like the average website, kind of like a small business site. How many sites could this server hold, but still maintain nice, decent speed? PowerEdge R510 PE R510 Chassis for Up to Four 3.5" Cabled Hard Drives, LED edit Processor Intel® Xeon® E5630 2.53Ghz, 12M Cache,Turbo, HT, 1066MHz Max Mem edit Memory 8GB Memory (4x2GB), 1333MHz Single Ranked UDIMMs for 1 Procs, Optimized edit Operating System SUSE Linux Enterprise Server 10, SP3, Up To 32 CPU Lic, 1 YR Sub, DIB, Media edit Red Hat Enterprise Linux Licensing Hard Drives 250GB 7.2K RPM SATA 3.5" Cabled Hard Drive edit Hard Drives 1TB 7.2K RPM SATA 3.5" Cabled Hard Drive edit Hard Drives 2 X 2TB 7.2K RPM SATA 3.5in Cabled Hard Drive Hard Drive Configuration No RAID, Embedded SATA Controller for x4 Chassis edit Power Supply 480 Watt Non-Redundant Power Supply edit Thank you!

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• how close a connection from server side that created by ajax from client side

  - by saeid

  I have this sample php code: <?php function response($a) { @ob_end_clean(); header("Connection: close"); ob_start(); echo $a; $length = ob_get_length(); header("Content-Length: $length"); ob_end_flush(); flush(); } response("test1"); sleep(5); echo "test2"; ?> now I make a connection to server from client by ajax. now I want to server only send "test1" to me and then close the connection. but connection not closed and wait 5 seconds and send me "test1 test2" !! this is response headers from server to me : X-Powered-By: PHP/5.3.27 Connection: close Vary: Accept-Encoding,User-Agent Content-Encoding: gzip Cache-Control: private, no-cache, no-store, ------revalidate, no-transform Transfer-Encoding: chunked Content-Type: text/html in response headers I do not see Content-Length header. is problem for this ?? or if not what I must do now for solving problem ??

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• Why my http POST request doesn't go well?

  - by 0x90

  I am trying to make this POST request in ruby. but get back #<Net::HTTPUnsupportedMediaType:0x007f94d396bb98> what I tried is: require 'rubygems' require 'net/http' require 'uri' require 'json' auto_index_nodes =URI('http://localhost:7474/db/data/index/node/') request_nodes = Net::HTTP::Post.new(auto_index_nodes.request_uri) http = Net::HTTP.new(auto_index_nodes.host, auto_index_nodes.port) request_nodes.add_field("Accept", "application/json") request_nodes.set_form_data({"name"=>"node_auto_index", "config" => { "type" => "fulltext", "provider" =>"lucene"} , "Content-Type" => "application/json" }) response = http.request(request_nodes) Tried to write this part: "config" => { "type" => "fulltext", provider" =>"lucene"} , "Content-Type" => "application/json" } like that: "config" => '{ "type" => "fulltext",\ "provider" =>"lucene"},\ "Content-Type" => "application/json"\ }' this try didn't help either: request_nodes.set_form_data({"name"=>"node_auto_index", "config" => '{ \ "type" : "fulltext",\ "provider" : "lucene"}' , "Content-Type" => "application/json" })

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• I know this is a stupid question but... How many websites can my server potentially hold?

  - by Daniel Kindler

  Sorry for the "noob" question, but... About how many medium-sized websites with average traffic could this server hold? Just like the average website, kind of like a small business site. How many sites could this server hold, but still maintain nice, decent speed? PowerEdge R510 PE R510 Chassis for Up to Four 3.5" Cabled Hard Drives, LED edit Processor Intel® Xeon® E5630 2.53Ghz, 12M Cache,Turbo, HT, 1066MHz Max Mem edit Memory 8GB Memory (4x2GB), 1333MHz Single Ranked UDIMMs for 1 Procs, Optimized edit Operating System SUSE Linux Enterprise Server 10, SP3, Up To 32 CPU Lic, 1 YR Sub, DIB, Media edit Red Hat Enterprise Linux Licensing Hard Drives 250GB 7.2K RPM SATA 3.5" Cabled Hard Drive edit Hard Drives 1TB 7.2K RPM SATA 3.5" Cabled Hard Drive edit Hard Drives 2 X 2TB 7.2K RPM SATA 3.5in Cabled Hard Drive Hard Drive Configuration No RAID, Embedded SATA Controller for x4 Chassis edit Power Supply 480 Watt Non-Redundant Power Supply edit Thank you!

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• Applying drop shadows to divs

  - by CJD

  Hi everyone, I need a bit of help applying a drop shadow image to a range of DIV elements. The elements in question already have a background image so I am wrapping another DIV around them. Things get complicated further because I'm also using the 960gs CSS framework. This is my current HTML for a content box type display: <div class="grid_12 boxout-shadow-920"> <div class="boxout"> <p>planetCJD.co.uk is the personal site and blog of CJD. The site is still a work-in-progress but please do have a look around and let me know what you think! </p> </div> </div> Boxout CSS: .boxout { background:url("../images/overlay.png") repeat-x scroll 0 0 #EEEEEE; -moz-border-radius:4px 4px 4px 4px; border:1px solid #DDDDDD; margin-bottom:15px; padding:5px; } boxout-shadow-920 CSS: .boxout-shadow-920 { background:url("../images/box-shadow-920.png") no-repeat scroll 50% 101% transparent; } Now this works to a degree. The boxshadow image shows at the bottom of the content box which is what I would like. However as I'm using a fixed percentage of 101%, if the content box height is too small, not much of the drop shadow image gets shown, and if the content box is too big, whitespace starts to appear between the box and the shadow image. So anyway, what I'm looking for is a cross-browser CSS based solution for doing this properly. I'm sure there is an easy answer to this - any help is appreciated!

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• Exchange Online - granting admin rights on a multi-domain account

  - by user1571299

  I'm the admin of a handful of domains on Office 365. The thing is some of my clients would like to manage their mailboxes by themselves. So I started looking into it and the closest I got was this page: http://community.office365.com/en-us/forums/158/p/20912/98083.aspx I created a Group Role with a Write Scope according to that post. I also assigned the Reset Password, Recipiants Creation, Mail Recipients and Distribution Groups rolls. But unfortunately that just doesnt work. The user in question is still unable to manage anything. Any suggestions?

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• Firefox - order of search engines reverts (toolbar)

  - by Victor78

  When I change the order of the search engines (Toolbar - Manage Search Engines - Move up / down - Ok) it changes the order, until I close and reopen the browser. I can't imagine that's the way it's supposed to work. I want it to stay in the order I select. I have no add-ons installed that have anything to do with search engines, nor that add any toolbars. I am not using a customized theme. Apparently this problem is rare, as Googling [ "manage search engine list" ("order reverts" OR "order changes") ] return 0 results. Firefox 3.6.12; Windows XP Pro SP3.

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• Post valuse and upload Image to php server in android

  - by lawat

  I am trying to upload image from android phone to php server with additional values,the method is post my php file look like this if($_POST['val1']){ if($_POST['val2']){ if($_FILE['image']){ ...... } } }else{ echo "Value not found"; } I am doing is URL url=new URL("http://www/......../myfile.php"); HttpURLConnection con=(HttpURLConnection) url.openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); con.setRequestMethod("POST");//Enable http POST con.setRequestProperty("Connection", "Keep-Alive"); con.setRequestProperty("Content-Type", "multipart/form-data;boundary="+"****"); connection.setRequestProperty("uploaded_file", imagefilePath); DataOutputStream ostream = new DataOutputStream( con.getOutputStream()); String res=("Content-Disposition: form-data; name=\"val1\""+val1+"****"+ "Content-Disposition: form-data; name=\"val2\""+val2+"****" "Content-Disposition: form-data; name=\"image\";filename=\"" + imagefilePath +"\""+"****"); outputStream.writeBytes(res); my actual problem is values are not posting so first if condition get false and else section is executed that is it give value not found please help me

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• Loading user controls programatically into a placeholder (asp.net)

  - by Phil

  In my .aspx page I have; <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" AspCompat="True" %> <%@ Register src="Modules/Content.ascx" tagname="Content" tagprefix="uc1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:PlaceHolder ID="Modulecontainer" runat="server"></asp:PlaceHolder> </div> </form> </body> </html> In my aspx.vb I have; Try Dim loadmodule As UserControl loadmodule = Me.LoadControl("~/modules/content.ascx") Modulecontainer.Controls.Add(loadmodule) Catch ex As Exception Response.Write(ex.ToString & "<br />") End Try The result is an empty placeholder and no errors. Thanks a lot for any assistance P.S after Fat_Tony's answer I changed the code to; Try Dim loadmodule As ASP.ContentModule loadmodule = CType(LoadControl("~\Modules\Content.ascx"), ASP.ContentModule) Modulecontainer.Controls.Add(loadmodule) Catch ex As Exception Response.Write(ex.ToString & "<br />") End Try But still no results unfortunately.

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• How to set background color of tableView

  - by Praveen

  Hi Folks, I have tried all the way but could not succeed to set backgroundColor of TableView. setting tableView.backgroundColor and/or cell.backgroundColor to clearColor didn't work when the parent view controller was UIViewContoller. My nib file structure is FileOwner View UITableView (Note: i set the TableView to groupedTable section) First attempt, I created the UIView in the code viewDidLoad UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 160, 300)] autorelease; [view setBackgroundColor:UIColor blueColor]; // color it just to see if it is created at the right place [self.tableView sendSubViewToBack:view]; It works but it hides the content of cell. I am able to see the content of header but not cell content. (But when i change the co-ordinate of view(0,150,160,300) then i am able to see the cell's content but then it loose the backgroundColor of tableview. Second attempt, I created the imageView View ImageView UITableView and set the self.tableView.backgroundColor = [UIColor clearColor]; but did not work. I googled but did not the peaceful answer.

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• In Rails, how would I include a section of a page only if the rest of the page doesn't match a certain regexp?

  - by Simon

  We have a site with a lot of user-generated content, and we'd like to show Google ads on it. Some of the content is such that we mustn't show the ads on pages containing that content, or else the whole site gets banned. We've come up with a regexp which we think will match all the offending content. So, three approaches come to mind: Render the page once without the ad section, and then insert the ad section into it if it's clean Render the page as normal, and do the insertion in client-side javascript Render the page above the ad section, capturing only the parts of the page that change; make sure there are no changing parts afterwards. Only show the ads if the captured text is clean, and make sure the unchanging, uncaptured parts are well-vetted in advance. The first one seems like it might delay the page rendering for too long; the second seems like it might delay showing the ads too long; and the third seems too fragile. Is there a better approach? If not, which one is the best solution of the three?

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• Image is not displaying in email template on 2nd time forward

  - by Don

  Good day Friends, I've a mass mailing program with simple mail templates (HTML and few Images). I've a problem with image display. My clients are not getting images in the mail. Sometimes they get a mail with all the images, But if they forward the same email to someone else, they can’t get the images in forwarded mail. I really don’t know what’s happening with the approach., most of the cases the 2nd time forwarded mail is not showing the images properly. For example, consider I send a mail to client A, Here, Client A will get a mail with Images. Further, If Client A forward the same message to Person B then Person B is not getting Images in the Forwarded email. I’m using the following Approach to Embed an image in the mail template: StringBuilder sb = new StringBuilder(" <some html content> <img src=\"cid:main.png\" alt=\"\" border=\"0\" usemap=\"#Map\"> </html content ends here>"); Attachment imgMain = new Attachment(Server.MapPath("main.png")); imgMain.ContentId = "main.png"; MailMessageObject.Attachments.Add(imgMain); Instead of attachment, I tried bypassing the Image path from server directly. Something like as follows: StringBuilder sb = new StringBuilder(" <some html content> <img src=\"www.mydomain.com/images/main.png\" alt=\"\" border=\"0\" usemap=\"#Map\"> </html content ends here>"); But, result is same, Please help to resolve this problem

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• forcing a download using PHP / jQuery

  - by Dirty-flow

  I know there are already many questions about forcing a download with PHP, but I can't find what I'm doing wrong and what should I do. I'm having an list with filenames, and I want to download one of them by clicking a button. My jQuery: $(".MappeDownload").on("click",function(e){ e.stopPropagation(); fileId=$(this).val() $.post("ajax/DownloadFile.php",{ id : fileId}) }) and on the server side I have a table with the file names and the file path. $sql = "SELECT vUploadPfad, vUploadOriginname FROM tabUpload WHERE zUploadId='$_POST[id]'"; $result = mysql_query($sql) or die(""); $file = mysql_fetch_array($result); $localfile = $file["vUploadPfad"]; $name=$file["vUploadOriginname"]; $fp = fopen($localfile, 'rb'); header("Cache-Control: "); header("Pragma: "); header("Content-Type: application/octet-stream"); header("Content-Length: " . filesize($localfile)); header("Content-Disposition: attachment; filename='".$name."';"); header("Content-Transfer-Encoding: binary\n"); fpassthru($fp); exit; The AJAX request is successful, I'm getting the right header(filesize, filename etc...) but the download are not starting.

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• Is virtual machine slower than the underlying physical machine?

  - by Michal Illich

  This question is quite general, but most specifically I'm interested in knowing if virtual machine running Ubuntu Enterprise Cloud will be any slower than the same physical machine without any virtualization. How much (1%, 5%, 10%)? Did anyone measure performance difference of web server or db server (virtual VS physical)? If it depends on configuration, let's imagine two quad core processors, 12 GB of memory and a bunch of SSD disks, running 64-bit ubuntu enterprise server. On top of that, just 1 virtual machine allowed to use all resources available.

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• Is there a way to create subdatabases as a kind of subfolders in sql server?

  - by user193655

  I am creating an application where there is main DB and where other data is stored in secondary databases. The secondary databases follow a "plugin" approach. I use SQL Server. A simple installation of the application will just have the mainDB, while as an option one can activate more "plug-ins" and for every plug-in there will be a new database. Now why I made this choice is because I have to work with an exisiting legacy system and this is the smartest thing I could figure to implement the plugin system. MainDB and Plugins DB have exactly the same schema (basically Plugins DB have some "special content", some important data that one can use as a kind of template - think to a letter template for example - in the application). Plugin DBs are so used in readonly mode, they are "repository of content". The "smart" thing is that the main application can also be used by "plugin writers", they just write a DB inserting content, and by making a backup of the database they creaetd a potential plugin (this is why all DBs has the same schema). Those plugins DB are downloaded from internet as there is a content upgrade available, every time the full PlugIn DB is destroyed and a new one with the same name is creaetd. This is for simplicity and even because the size of this DBs is generally small. Now this works, anyway I would prefer to organize the DBs in a kind of Tree structure, so that I can force the PlugIn DBs to be "sub-DBs" of the main application DB. As a workaround I am thinking of using naming rules, like: ApplicationDB (for the main application DB) ApplicationDB_PlugIn_N (for the N-th plugin DB) When I search for plugin 1 I try to connect to ApplicationDB_PlugIn_1, if I don't find the DB i raise an error. This situation can happen for example if som DBA renamed ApplicationDB_Plugin_1. So since those Plugin DBs are really dependant on ApplicationDB only I was trying to "do the subfolder trick". Can anyone suggest a way to do this? Can you comment on this self-made plugin approach I decribed above?

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