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  • SQL Server Full-Text Search: Hung processes with MSSEARCH wait type

    - by CheeseInPosition
    We have a SQL Server 2005 SP2 machine running a large number of databases, all of which contain full-text catalogs. Whenever we try to drop one of these databases or rebuild a full-text index, the drop or rebuild process hangs indefinitely with a MSSEARCH wait type. The process can’t be killed, and a server reboot is required to get things running again. Based on a Microsoft forums post[1], it appears that the problem might be an improperly removed full-text catalog. Can anyone recommend a way to determine which catalog is causing the problem, without having to remove all of them? [1] [http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2681739&SiteID=1] “Yes we did have full text catalogues in the database, but since I had disabled full text search for the database, and disabled msftesql, I didn't suspect them. I got however an article from Microsoft support, showing me how I could test for catalogues not properly removed. So I discovered that there still existed an old catalogue, which I ,after and only after re-enabling full text search, were able to delete, since then my backup has worked”

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  • Image Line Trace Math Help Hard To Explain

    - by Ozzy
    Hi all, sorry for the confusing title, its really hard for me to explain what i want. So i created this image :) Ok so the two RED dots are points on an image. The distance between them isnt important. What I want to do is, Using the coordinates for the two dots, work out the angle of the space between them (as shown by the black line between the red dots) Then once the angle is found, on the last red dot, create two points which cross the angle of the first line. Then from that, scan a Half semicircle and get the coordinates of every pixel of the image that the orange line passes. I dnot know if this makes any sense to you lot so i drew another picture: As you can see in the second picture, my idea is applied to a line drawn on a black canavs. The two red dots are the starting coordinates then at the end of the two dots, a less then half semicircle is created. The part that is orange shows the pixels of the image that should be recorded. I have no clue how to start this, so if anyone has any ideas on how i can or on what i need to do, any help is much appreciated :)

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  • Unable to get simple ruby on rails Search to work :/

    - by edu222
    I am new to RoR, any help would be greatly appreciated :) I have a basic scaffolding CRUD app to add customers. I am trying to search by first_name or last_name fields. The error that I am getting is: NoMethodError in Clientes#find You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.each Extracted source (around line #9): 6: <th>Apellido</th> 7: </tr> 8: 9: <% for cliente in @clientes %> 10: <tr> 11: <td><%=h cliente.client_name %></td> 12: <td><%=h cliente.client_lastname %></td> Application Trace C:/Rails/clientes/app/views/clientes/find.html.erb:9:in `_run_erb_app47views47clientes47find46html46erb' My find function in controllers/clientes_controlee.rb is: # Find def find @cliente = Cliente.find(:all, :conditions=>["client_name = ? OR client_lastname = ?", params[:search_string], params[:search_string]]) end My views/layouts clientes.html.erb form code fragment is: <span style="text-align: right"> <% form_tag "/clientes/find" do %> <%= text_field_tag :search_string %> <%= submit_tag "Search" %> <% end %> </span> The search template I created in views/clientes/find.html.erb: <h1>Listing clientes for <%= params[:search_string] %></h1> <table> <tr> <th>Nombre</th> <th>Apellido</th> </tr> <% for cliente in @clientes %> <tr> <td><%=h cliente.client_name %></td> <td><%=h cliente.client_lastname %></td> <td><%= link_to 'Mostrar', cliente %></td> <td><%= link_to 'Editar', edit_cliente_path(cliente) %></td> <td><%= link_to 'Eliminar', cliente, :confirm =>'Estas Seguro de que desear eliminar a este te cliente?', :method => :delete %></td> </tr> <% end %> </table> <%= link_to 'Atras', clientes_path %

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  • MySQL full text search with partial words

    - by Rob
    MySQL Full Text searching appears to be great and the best way to search in SQL. However, I seem to be stuck on the fact that it won't search partial words. For instance if I have an article titled "MySQL Tutorial" and search for "MySQL", it won't find it. Having done some searching I found various references to support for this coming in MySQL 4 (i'm using 5.1.40). I've tried using "MySQL" and "%MySQL%", but neither works (one link I found suggested it was stars but you could only do it at the end or the beginning not both). Here's my table structure and my query, if someone could tell me where i'm going wrong that would be great. I'm assuming partial word matching is built in somehow. CREATE TABLE IF NOT EXISTS `articles` ( `article_id` smallint(5) unsigned NOT NULL AUTO_INCREMENT, `article_name` varchar(64) NOT NULL, `article_desc` text NOT NULL, `article_link` varchar(128) NOT NULL, `article_hits` int(11) NOT NULL, `article_user_hits` int(7) unsigned NOT NULL DEFAULT '0', `article_guest_hits` int(10) unsigned NOT NULL DEFAULT '0', `article_rating` decimal(4,2) NOT NULL DEFAULT '0.00', `article_site_id` smallint(5) unsigned NOT NULL DEFAULT '0', `article_time_added` int(10) unsigned NOT NULL, `article_discussion_id` smallint(5) unsigned NOT NULL DEFAULT '0', `article_source_type` varchar(12) NOT NULL, `article_source_value` varchar(12) NOT NULL, PRIMARY KEY (`article_id`), FULLTEXT KEY `article_name` (`article_name`,`article_desc`,`article_link`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=7 ; INSERT INTO `articles` VALUES (1, 'MySQL Tutorial', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 6, 3, 1, '1.50', 1, 1269702050, 1, '0', '0'), (2, 'How To Use MySQL Well', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 1, 2, 0, '3.00', 1, 1269702050, 1, '0', '0'), (3, 'Optimizing MySQL', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 0, 1, 0, '3.00', 1, 1269702050, 1, '0', '0'), (4, '1001 MySQL Tricks', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 0, 1, 0, '3.00', 1, 1269702050, 1, '0', '0'), (5, 'MySQL vs. YourSQL', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 0, 2, 0, '3.00', 1, 1269702050, 1, '0', '0'), (6, 'MySQL Security', 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.', 'http://www.domain.com/', 0, 2, 0, '3.00', 1, 1269702050, 1, '0', '0'); SELECT count(a.article_id) FROM articles a WHERE MATCH (a.article_name, a.article_desc, a.article_link) AGAINST ('mysql') GROUP BY a.article_id ORDER BY a.article_time_added ASC The prefix is used as it comes from a function that sometimes adds additional joins. As you can see a search for MySQL should return a count of 6, but unfortunately it doesn't.

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  • Best way to retrieve certain field of all documents returned by a lucen search

    - by Philipp
    Hi, I was wondering what the best way is to retrieve a certain field of all documents returned by a Searcher of Lucene. Background: each document has a date field (written on) and I would like to show a timeline of all found documents, so I need to extract the date (day) field of all the documents I find with the search. I currently retrieve every document using Searcher.doc(int, FieldSelector) having the selector only retrieve the certain field. I have indexed 250k documents, the search itself takes no time and returns about 10k document ids. Retrieving those however, takes 20+ seconds. What can I do to speed things up, but still get all the values I need. Thx in advance Philipp

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  • What sort of loop structure to compare checkbox matrix with Google Maps markers?

    - by Kirkman14
    I'm trying to build a map of trails around my town. I'm using an XML file to hold all the trail data. For each marker, I have categories like "surface," "difficulty," "uses," etc. I have seen many examples of Google Maps that use checkboxes to show markers by category. However these examples are usually very simple: maybe three different checkboxes. What's different on my end is that I have multiple categories, and within each category there are several possible values. So, a particular trail might have "use" values of "hiking," "biking," "jogging," and "equestrian" because all are allowed. I put together one version, which you can see here: http://www.joshrenaud.com/pd/trails_withcheckboxes3.html In this version, any trail that has any value checked by the user will be displayed on the map. This version works. (although I should point out there is a bug where despite only one category being checked on load, all markers display anyway. After your first click on any checkbox, the map will work properly) However I now realize it's not quite what I want. I want to change it so that it will display only markers that match ALL the values that are checked (rather than ANY, which is what the example above does). I took a hack at this. You can see the result online, but I can't type a link to it because I am new user. Change the "3" in the URL above to a "4" to see it. My questions are about this SECOND url. (trails_withcheckboxes4.html) It doesn't work. I am pretty new to Javascript, so I am sure I have done something totally wrong, but I can't figure out what. My specific questions: Does anyone see anything glaringly obvious that is keeping my second example from working? If not, could someone just suggest what sort of loop structure I would need to build to compare the several arrays of checkboxes with the several arrays of values on any given marker? Here is some of the relevant code, although you can just view source on the examples above to see the whole thing: function createMarker(point,surface,difficulty,use,html) { var marker = new GMarker(point,GIcon); marker.mysurface = surface; marker.mydifficulty = difficulty; marker.myuse = use; GEvent.addListener(marker, "click", function() { marker.openInfoWindowHtml(html); }); gmarkers.push(marker); return marker; } function show() { hide(); var surfaceChecked = []; var difficultyChecked = []; var useChecked = []; var j=0; // okay, let's run through the checkbox elements and make arrays to serve as holders of any values the user has checked. for (i=0; i<surfaceArray.length; i++) { if (document.getElementById('surface'+surfaceArray[i]).checked == true) { surfaceChecked[j] = surfaceArray[i]; j++; } } j=0; for (i=0; i<difficultyArray.length; i++) { if (document.getElementById('difficulty'+difficultyArray[i]).checked == true) { difficultyChecked[j] = difficultyArray[i]; j++; } } j=0; for (i=0; i<useArray.length; i++) { if (document.getElementById('use'+useArray[i]).checked == true) { useChecked[j] = useArray[i]; j++; } } //now that we have our 'xxxChecked' holders, it's time to go through all the markers and see which to show. for (var k=0; k<gmarkers.length; k++) { // this loop runs thru all markers var surfaceMatches = []; var difficultyMatches = []; var useMatches = []; var surfaceOK = false; var difficultyOK = false; var useOK = false; for (var l=0; l<surfaceChecked.length; l++) { // this loops runs through all checked Surface categories for (var m=0; m<gmarkers[k].mysurface.length; m++) { // this loops through all surfaces on the marker if (gmarkers[k].mysurface[m].childNodes[0].nodeValue == surfaceChecked[l]) { surfaceMatches[l] = true; } } } for (l=0; l<difficultyChecked.length; l++) { // this loops runs through all checked Difficulty categories for (m=0; m<gmarkers[k].mydifficulty.length; m++) { // this loops through all difficulties on the marker if (gmarkers[k].mydifficulty[m].childNodes[0].nodeValue == difficultyChecked[l]) { difficultyMatches[l] = true; } } } for (l=0; l<useChecked.length; l++) { // this loops runs through all checked Use categories for (m=0; m<gmarkers[k].myuse.length; m++) { // this loops through all uses on the marker if (gmarkers[k].myuse[m].childNodes[0].nodeValue == useChecked[l]) { useMatches[l] = true; } } } // now it's time to loop thru the Match arrays and make sure they are all completely true. for (m=0; m<surfaceMatches.length; m++) { if (surfaceMatches[m] == true) { surfaceOK = true; } else if (surfaceMatches[m] == false) {surfaceOK = false; break; } } for (m=0; m<difficultyMatches.length; m++) { if (difficultyMatches[m] == true) { difficultyOK = true; } else if (difficultyMatches[m] == false) {difficultyOK = false; break; } } for (m=0; m<useMatches.length; m++) { if (useMatches[m] == true) { useOK = true; } else if (useMatches[m] == false) {useOK = false; break; } } // And finally, if each of the three OK's is true, then let's show the marker. if ((surfaceOK == true) && (difficultyOK == true) && (useOK == true)) { gmarkers[i].show(); } } }

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  • search results filter effects - flex

    - by Adam
    I've created a search with a couple of comboboxes that allow users to filter their search results. The results are currently using a TileList & itemRenderer to display, and now I'd like to add an animation effect when the user filters their results. I know that you can use the itemsChangeEffect to create an animation effect when the user drags and moves result itmes. So I'd like to know if there's a way to create a similar effect triggered by the filtering on the comboboxes? Thanks.

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  • send Image from J2ME to SERVLET

    - by Akash
    Hi, I want to send Image from J2ME to SERVLET. I am able to convert image into Byte Array, and send by Http POST. I have coded as : - From Mobile : conn = (HttpConnection)Connector.open(url,Connector.READ_WRITE,true); conn.setRequestMethod(HttpConnection.POST); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); os.write(bytes, 0, bytes.length);//bytes = byte array of image At servlet : String line; BufferedReader r1 = new BufferedReader(new InputStreamReader(in)); while ((line = r1.readLine()) != null) { System.out.println("line=" + line); buf.append(line); } String s = buf.toString(); byte[] img_byte = s.getBytes(); Now d problem I found is, when I send Bytes from Mob App, some bytes are LOST , whose value is 0A and 0D-Hex ... Exactly, Cr- Carriage Return & Lf- Line Feed... It means, POST method OR readLine() not able to accept 0A & 0D value... And so I come to know that, LOST bytes are 0A and 0D occurrence in image's byte array.... Any one have any idea, how to do this, or how to use any another method..... Thanks -Akash

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  • Optimizing encrypted column search

    - by Sung Meister
    I have a table called,tblClient with an encrypted column called SSN. Due to company policy, we encrypted SSN using a symmetric key (chosen over asymmetric key due to performance reasons) using a password. Here is a partial LIKE search on SSN declare @SSN varchar(11) set @SSN = '111-22-%' open symmetric key SSN_KEY decrypt by password = 'secret' select Client_ID from tblClient (nolock) where convert(nvarchar(11), DECRYPTBYKEY(SSN)) like @SSN close symmetric key SSN_KEY Before encryption, searching thru 150,000 records took less than 1 second. but with the mix of decryption, the same search takes around 5 seconds. What strategy can I apply to try to optimize searching thru encrypted column?

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  • Flex: FileReference and Image unhandled IOErrorEvent

    - by deux11
    The following code shows a button that allows you to select a file (should be an image) and display it into an image component. When I select an invalid image (e.g. a word document), I get the following error: "Error #2044: Unhandled IOErrorEvent:. text=Error #2124: Loaded file is an unknown type." I know I can pass a FileFilter to the FileReference:browse call, but that's beyond the point. My question is... I want to handle the IOErrorEvent myself, what event listener am I missing? private var file:FileReference = new FileReference(); private function onBrowse():void { file.browse(null); file.addEventListener(Event.SELECT, handleFileSelect); file.addEventListener(Event.COMPLETE, handleFileComplete); } private function handleFileSelect(event:Event):void { file.load(); } private function handleFileComplete(event:Event):void { myImage.source = file.data; } private function handleImageIoError(evt:IOErrorEvent):void { Alert.show("IOErrorEvent"); } <mx:Button click="onBrowse()" label="Browse"/> <mx:Image id="myImage" width="100" height="100" ioError="handleImageIoError(event)"/>

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  • Eclipse Search Only Specific Folders

    - by Craig
    Hello, I already saw the answers for a question almost identical to this: http://stackoverflow.com/questions/443169/eclipse-exclude-folders-from-search. However I am looking for a resolution that would allow me to say look at 10 of my 200 folders and those 10 change all the time. Is there a way I can search through just 1 folder and avoid any other folders that are not inside it? I don't want to create a different project as I am using SVN and I have had cases with mxml files and other files that adding a file that we moved from one project to another caused problems for other developers.

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  • Search select statement

    - by Nana
    I am creating a page which would have different field for the user to search from. e.g. search by: Grade: -dropdownlist1- Student name: -dropdownlist2- Student ID: -dropdownlist3- Lessons: -dropdownlist4- Year: -dropdownlist5- How do I write the select statement for this? Each dropdownlist would need a select statement which would extract out different data from the database. But, I want to write ONE select statement which can dynamically choose the dropdownlist options. Instead of writing many many select statement. Lets say; Grade: -dropdownlist1- ; default value(all) Student name: -dropdownlist2-; default value(all) Student ID: -dropdownlist3-; 0-100 is choosen Lessons: -dropdownlist4-; A-C is choosen Year: -dropdownlist5-; 2009 is choosen

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  • Lucene search taking TOOO long.

    - by Josh Handel
    I;m using Lucene.net (2.9.2.2) on a (currently) 70Gig index.. I can do a fairly complicated search and get all the document IDs back in 1 ~ 2 seconds.. But to actually load up all the hits (about 700 thousand in my test queries) takes 5+ minutes. We aren't using lucene for UI, this is a datastore between processes where we have hundreds of millions of pre-cached data elements, and the part I am working on exports a few specific fields from each found document. (ergo, pagination doesn't make since as this is an export between processes). My question is what is the best way to get all of the documents in a search result? currently I am using a custom collector that does a get on the document (with a MapFieldSelector) as its collecting.. I've also tried iterating through the list after the collector has finished.. but that was even worse. I'm open to ideas :-). Thanks in advance.

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  • PostgreSql XML Text search

    - by cro
    I have a text column in a table. We store XML in this column. Now I want to search for tags and values Example data: Citi Bank ..... ..... / I would like to run the following query: select * from xxxx where to_tsvector('english',xml_column) @@ to_tsquery('Citi Bank') This works fine but it also works for tags like name1 or no tag. How do I have to setup my search in order for this to work so I get an exact match for the tag and value ?

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  • merging UIImagePickerController image with cameraOverlayView

    - by GameDev
    Im really in the need for some help and advice. Spent the last week on this and have now just become frustrated as i cant get it to work! Basically, im trying to merge two images into one image to display/save. First the user picks an image from album, it goes to edit image screen where user can move and scale the image. On this screen is an overlay image (320x480) for the person to align there eyes in. Once aligned I want to save this image (edited and overlay) into one and pass the image onto my next screen. It works fine when the image is filling the edit/crop box, but when the image is widescreen with top and bottom not filling the box, then when i save the image the coords of the overlay dont get saved correctly! Heres my code, ive tried various ways of doing this but have failed at every attempt :( - (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { // Access the cropped image from info dictionary UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"]; // Combine image with overlay before saving!! image = [self addOverlayToImage:image]; overlayGraphicView.image = nil; // Take the picture image to the post picture view controller postPictureView = [[PostPictureViewController alloc] init:image Company:companyName withLink:buyButtonLink]; [picker pushViewController:postPictureView animated:YES]; [picker release],picker = nil; } The problem is that the image picked (originalImage) could be of any height, my overlayImage is however always 320x480, its almost all transparent with just two eye images in center which i want to save over the original images eyes! - (UIImage*) addOverlayToImage:(UIImage*)originalImage { CGRect cgRect =[[UIScreen mainScreen] bounds]; CGSize size = cgRect.size; UIGraphicsBeginImageContext(size); [originalImage drawInRect:CGRectMake(0, 0, size.width, size.height)]; UIImage* overlayImage = [UIImage imageNamed:overlayGraphicName]; [(UIImage *)overlayImage drawInRect:CGRectMake(0, 0, size.width, size.height)]; UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext(); [finalImage retain]; UIGraphicsEndImageContext(); return finalImage; } I wish there was just an easy way to take a screenshot of whatever is in the edit crop box :( Please if someone could help me with this ASAP as I need to finish this in 1-2 days time! Thank you. EDIT:- I should also mention that with this I get the correct center of the screen and placement of the overlay on my next screen: [(UIImage *)overlayImage drawInRect:CGRectMake(0, 0, size.width, size.height)]; However, I am unable to work out the correct position of the main image especially as the height is different for every image if not fullscreen! I tried this to center it into the correct position but it doesnt work: [originalImage drawInRect:CGRectMake(0,(size.height/2 - originalImage.size.height/2), originalImage.size.width, originalImage.size.height)];

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  • SQL Server Full Text Search Leading Wildcard

    - by aherrick
    After taking a look at this SO question and doing my own research, it appears that you cannot have a leading wildcard while using full text search. So in the most simple example, if I have a Table with 1 column like below: TABLE1 coin coinage undercoin select COLUMN1 from TABLE1 where COLUMN1 LIKE '%coin%' Would get me the results I want. How can I get the exact same results with FULL TEXT SEARCH enabled on the column? The following two queries return the exact same data, which is not exactly what I want. SELECT COLUMN1 FROM TABLE1 WHERE CONTAINS(COLUMN1, '"coin*"') SELECT COLUMN1 FROM TABLE1 WHERE CONTAINS(COLUMN1, '"*coin*"')

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  • Search 2 Columns with 1 Input Field

    - by Norbert
    I have a db with two columns: first name and last name. The first name can have multiple words. Last name can contain hyphenated words. Is there a way to search both columns with only one input box? Database ID `First Name` `Last Name` 1 John Peter Doe 2 John Fubar 3 Michael Doe Search john peter returns id 1 john returns id 1,2 doe returns id 1,3 john doe returns id 1 peter john returns id 1 peter doe returns id 1 doe john returns id 1 I previously tried the following. Searching for John Doe: SELECT * FROM names WHERE ( `first` LIKE '%john%' OR `first` LIKE '%doe%' OR `last` LIKE '%john%' OR `last` LIKE '%doe%' ) which returns both 1 and 3

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  • search engine crawling frequency

    - by Aditya Pratap Singh
    I want to design a search engine for news websites ie. download various article pages from these websites, index the pages, and answer search queries on the index. I want a short pseudocode to find an appropriate crawling frequency -- i do not want to crawl too often because the website may not have changed, and do not want to crawl too infrequently because index would then be out of date. Assume that crawling code looks as follows while(1) { sleep(sleep_interval); // sleep for sleep_interval crawl(website); // crawls the entire website diff = diff(currently_crawled_website, previously_crawled_website); // returns a % value of difference between the latest and previous crawls of the website sleep_interval = infer_sleep_interval(diff, sleep_interval); } looking for a pseudocode for the infer_sleep_interval method: long sleep_interval infer_sleep_interval(int diff_percentage,long previous_sleep_interval) { ... ... ... } i want to design method which adaptively alters the sleeping interval based on the update frequency of the website.

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  • uploading image & getting back from database

    - by Anup Prakash
    Putting a set of code which is pushing image to database and fetching back from database: <!-- <?php error_reporting(0); // Connect to database $errmsg = ""; if (! @mysql_connect("localhost","root","")) { $errmsg = "Cannot connect to database"; } @mysql_select_db("test"); $q = <<<CREATE create table image ( pid int primary key not null auto_increment, title text, imgdata longblob, friend text) CREATE; @mysql_query($q); // Insert any new image into database if (isset($_POST['submit'])) { move_uploaded_file($_FILES['imagefile']['tmp_name'],"latest.img"); $instr = fopen("latest.img","rb"); $image = addslashes(fread($instr,filesize("latest.img"))); if (strlen($instr) < 149000) { $image_query="insert into image (title, imgdata,friend) values (\"". $_REQUEST['title']. "\", \"". $image. "\",'".$_REQUEST['friend']."')"; mysql_query ($image_query) or die("query error"); } else { $errmsg = "Too large!"; } $resultbytes=''; // Find out about latest image $query = "select * from image where pid=1"; $result = @mysql_query("$query"); $resultrow = @mysql_fetch_assoc($result); $gotten = @mysql_query("select * from image order by pid desc limit 1"); if ($row = @mysql_fetch_assoc($gotten)) { $title = htmlspecialchars($row[title]); $bytes = $row[imgdata]; $resultbytes = $row[imgdata]; $friend=$row[friend]; } else { $errmsg = "There is no image in the database yet"; $title = "no database image available"; // Put up a picture of our training centre $instr = fopen("../wellimg/ctco.jpg","rb"); $bytes = fread($instr,filesize("../wellimg/ctco.jpg")); } if ($resultbytes!='') { echo $resultbytes; } } ?> <html> <head> <title>Upload an image to a database</title> </head> <body bgcolor="#FFFF66"> <form enctype="multipart/form-data" name="file_upload" method="post"> <center> <div id="image" align="center"> <h2>Heres the latest picture</h2> <font color=red><?php echo $errmsg; ?></font> <b><?php echo $title ?></center> </div> <hr> <h2>Please upload a new picture and title</h2> <table align="center"> <tr> <td>Select image to upload: </td> <td><input type="file" name="imagefile"></td> </tr> <tr> <td>Enter the title for picture: </td> <td><input type="text" name="title"></td> </tr> <tr> <td>Enter your friend's name:</td> <td><input type="text" name="friend"></td> </tr> <tr> <td><input type="submit" name="submit" value="submit"></td> <td></td> </tr> </table> </form> </body> </html> --> Above set of code has one problem. The problem is whenever i pressing the "submit" button. It is just displaying the image on a page. But it is leaving all the html codes. even any new line message after the // Printing image on browser echo $resultbytes; //************************// So, for this i put this set of code in html tag: This is other sample code: <!-- <?php error_reporting(0); // Connect to database $errmsg = ""; if (! @mysql_connect("localhost","root","")) { $errmsg = "Cannot connect to database"; } @mysql_select_db("test"); $q = <<<CREATE create table image ( pid int primary key not null auto_increment, title text, imgdata longblob, friend text) CREATE; @mysql_query($q); // Insert any new image into database if (isset($_POST['submit'])) { move_uploaded_file($_FILES['imagefile']['tmp_name'],"latest.img"); $instr = fopen("latest.img","rb"); $image = addslashes(fread($instr,filesize("latest.img"))); if (strlen($instr) < 149000) { $image_query="insert into image (title, imgdata,friend) values (\"". $_REQUEST['title']. "\", \"". $image. "\",'".$_REQUEST['friend']."')"; mysql_query ($image_query) or die("query error"); } else { $errmsg = "Too large!"; } $resultbytes=''; // Find out about latest image $query = "select * from image where pid=1"; $result = @mysql_query("$query"); $resultrow = @mysql_fetch_assoc($result); $gotten = @mysql_query("select * from image order by pid desc limit 1"); if ($row = @mysql_fetch_assoc($gotten)) { $title = htmlspecialchars($row[title]); $bytes = $row[imgdata]; $resultbytes = $row[imgdata]; $friend=$row[friend]; } else { $errmsg = "There is no image in the database yet"; $title = "no database image available"; // Put up a picture of our training centre $instr = fopen("../wellimg/ctco.jpg","rb"); $bytes = fread($instr,filesize("../wellimg/ctco.jpg")); } } ?> <html> <head> <title>Upload an image to a database</title> </head> <body bgcolor="#FFFF66"> <form enctype="multipart/form-data" name="file_upload" method="post"> <center> <div id="image" align="center"> <h2>Heres the latest picture</h2> <?php if ($resultbytes!='') { // Printing image on browser echo $resultbytes; } ?> <font color=red><?php echo $errmsg; ?></font> <b><?php echo $title ?></center> </div> <hr> <h2>Please upload a new picture and title</h2> <table align="center"> <tr> <td>Select image to upload: </td> <td><input type="file" name="imagefile"></td> </tr> <tr> <td>Enter the title for picture: </td> <td><input type="text" name="title"></td> </tr> <tr> <td>Enter your friend's name:</td> <td><input type="text" name="friend"></td> </tr> <tr> <td><input type="submit" name="submit" value="submit"></td> <td></td> </tr> </table> </form> </body> </html> --> ** But in this It is showing the image in format of special charaters and digits. 1) So, Please help me to print the image with some HTML code. So that i can print it in my form to display the image. 2) Is there any way to convert the database image into real image, so that i can store it into my hard-disk and call it from tag? Please help me.

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