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  • Does clustered index on foreign key column increase join performance vs non-clustered ?

    - by alpav
    In many places it's recommended that clustered indexes are better utilized when used to select range of rows using BETWEEN statement. When I select joining by foreign key field in such a way that this clustered index is used, I guess, that clusterization should help too because range of rows is being selected even though they all have same clustered key value and BETWEEN is not used. Considering that I care only about that one select with join and nothing else, am I wrong with my guess ?

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  • index.php is not opening and running as download the file!

    - by artmania
    Hi friends, when I run the url at localhost for a php file like: http://localhost/project/admin/ it doesnt open the index.php, but gives panel for downloading the file with the message below :/ You have chosen to open which is a: application/x-httpd-php from: http://localhost What should Firefox do with this file? Openwith - Save... etc... any idea what is going on? :( appreciate helps!! thanks a lot

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  • Cake Php After Php GD library installation comes error as appending 'index.php' in urls

    - by Jusnit
    I am using using Cake PHP with nginx server, inorder to enable captcha support , I installed the PHP GD library to server After the installation , All the urls in cake php is appended with 'index.php' Like www.mydomain.com/index.php instead of www.mydomain.com There cake php HtmlHelper link and image function, it all appending url "/index.php/img/flower.jpg" instead "/img/flower.jpg". Please help to solve this problem..

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  • How to fix bluescreen in windows 7 with multi-boot?

    - by Ismail Sensei
    I have HP laptop 6730S with two Operating systems : Windows 7 Ultimate 32bit Centos 6.4 64Bit The GRUB2 is not installed in MBR, use Windows' bootloader. After I choose Windows in the start, the blue-screen appears with unmountable_boot_volume problem so I tried some help from similar questions here ( use Command Prompt and enter the following command: chkdsk /R C: ). But the problem is, I can't get repair my computer it took so long and nothing happened after I waited more than 2H and when I put my Windows 7 DVD to boot it charge the files then same thing happened nothing show up so I couldn't use command prompt. But when I use Centos everything works just fine the D partition i can mounted normally but C partition it shows me error and tell me to go to windows and repair it with Chkdsk command and here is where I am stuck.

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  • SQL server Rebuild Index

    - by Uday
    How can we know that before rebuilding index --How much space is required for the Transaction Log file( I knew we may required to consider sort_tempdb option , if we set to ON then we may required to ensure about tempdb space as well , Also if we set off then sorting, temporary indexes(during Build phase of rebuild index) creation will takes place in same Database.)?. Usually I have checked with Many users they say :Log file size =1.5 * Index size. How much space required for the Filegroup for datafiles-for ex-Consider I have one filegroup with 1 Mdf + ndf files. I have MSDN Link :those are pretty good information about per-requisites before rebuild index Link :http://msdn.microsoft.com/en-us/library/ms191183.aspx How can I tell exactly or Approx... to get Log/Primary FG size(or any other filegroup).

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  • static index.html file nginx

    - by Guntis
    We are using nginx with php-fpm. We plan to make first page static (generate html file). if we have 100 concurrent connections, how we can handle file regeneration? basically we need generate new file index_new.html, then delete index.html, and then move index_new.html to index.html. What happens when index.html file was deleted? User gets 404 error? Or nginx handles file from OS cache? One idea is to tell nginx, that 404 error is index_new.html and then not to move index_new to index, but copy. But i don't like idea about 404 error. Thanks.

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  • Apache rewrite rule to remove index.php and direct certain areas to https

    - by Stephen Martin
    I have a codeignitor application running on Apache2, I have managed to remove the index.php from the urls with this .htaccess RewriteEngine on RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* index.php/$0 [PT,L] now I want to make certain parts of the site redirect to https, I tried this: RewriteEngine on RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* index.php/$0 [PT,L] RewriteRule ^/?cpanel/(.*) https://%{SERVER_NAME}/cpanel/$1 [R,L] RewriteRule ^/?login/(.*) https://%{SERVER_NAME}/cpanel/$1 [R,L] But it doesn't work. I have to say when it comes to Apache rewrites im a noob. I can't find any tutorials on how to remove index.php and rewrite/redirect certain parts of the site to https. Any ideas, Thanks.

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  • Serving index.html from a subdirectory

    - by xbonez
    In my document root, I have to directories: home and foobar, both with their own index.html files. How can I set it up so that when someone visits my site at example.com, they see the contents on home/index.html? I tried using an index.php with a redirect in document root, as well as a .htaccess redirect, but both of them change the URL in the browser to example.com/home/, which I would like to ideally avoid.

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  • How to Modify Windows 7 Search to Index Removable Drives

    - by AMissico
    I have over 8GB in my "Code Library" that I maintain on a 64GB "ScanDisk Ultra Backup USB Device". Windows Search 4.0 (installed on Windows XP) can index removable drives, but Windows 7 (which uses Windows Search 4.0) cannot because the USB device identifies itself as a "Removable" drive and Windows 7 refuses to index removable drives. How can I modify Windows 7 Search to index removable drives? All suggestions welcome and greatly appreciated.

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  • Mysql: create index on 1.4 billion records

    - by SiLent SoNG
    I have a table with 1.4 billion records. The table structure is as follows: CREATE TABLE text_page ( text VARCHAR(255), page_id INT UNSIGNED ) ENGINE=MYISAM DEFAULT CHARSET=ascii The requirement is to create an index over the column text. The table size is about 34G. I have tried to create the index by the following statement: ALTER TABLE text_page ADD KEY ix_text (text) After 10 hours' waiting I finally give up this approach. Is there any workable solution on this problem? UPDATE: the table is unlikely to be updated or inserted or deleted. The reason why to create index on the column text is because this kind of sql query would be frequently executed: SELECT page_id FROM text_page WHERE text = ? UPDATE: I have solved the problem by partitioning the table. The table is partitioned into 40 pieces on column text. Then creating index on the table takes about 1 hours to complete. It seems that MySQL index creation becomes very slow when the table size becomes very big. And partitioning reduces the table into smaller trunks.

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  • Fresh install of nginx causes browser to download index.html instead of opening it

    - by 010110110101
    When I view this in Chrome, http://localhost:90 the file is downloaded instead of displayed in Chrome. This question has been asked a lot of times on SO, but about index.php files. My problem is a plain jane HTML file, not a PHP file. That hasn't been asked yet. I was hoping the solution would be similar, but I haven't been able to figure it out. Here's my example.com.conf: server { server_name localhost; listen 90; root /var/www/example.com/html index index.html location / { try_file $uri $uri/ =404; } } My index.html file contains only two words, no markup Hello World I think it's the mime.types. The mime.types file has the entry for html in it. This is a fresh nginx install. nginx -t reports "test is successful"

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  • MySQL reclaim index space after large delete?

    - by cdunn
    After performing a large delete in MySQL, I understand you need to run a NULL ALTER to reclaim disk space, is this also true for reclaiming index space? We have tables using 10G of index space and have deleted/archived large chunks of this data and unsure if we need to rebuild the table in order to decrease the size of the index. Can anyone offer any advice? We are trying to avoid rebuilding the table since it would take quite awhile and lock the table. Thanks!

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  • Will Windows repair my multi-boot when I format the 1st physical partition with boot sector?

    - by user2353806
    Due to historical reasons I got a laptop with Vista, Windows 7 and Windows Server 2008R2 partitions. (boot from external wasn´t that viable) Nothing (Windows Repair, bootrec /whateveroption) worked when I restored only the Windows 7 and WS2k8 with Acronis TrueImage. Don´t ask me through what idiotic error messages I went during repair tries. (Wrong Windows version,...) So I grudgingly restored all three - with the little additional excursion that I thought changing the active partition to the Windows 7 partition would move the boot sector and let me format the Vista part... Oh no. Seems too logical for MS. (Dunno what I changed, but today it will let me format!) So the real question is: Will formatting the Vista part trash things again beyond comprehension or will Windows Repair bring back the boot rec and remove Vista from the boot options? Or should I just erase all the files to avoid trashing the boot? Where will the boot rec be (after repair) when I format the Vista? On 1st or 2nd partition? And if I get drunk and install Windows 8.1 on the 1st, will anything work? ;-) Thanks

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  • How to chain GRUB2 for Ubuntu 10.04 from Truecrypt & its bootloader (multi boot alongside Windows XP partition)?

    - by Rob
    I want Truecrypt to ask for password for Windows XP as usual but with the standard [ESC] option, on selecting that, i.e via Escape key, I want it to find the grub for the (unencrypted) Ubuntu install. I've installed Windows XP on the 120Gb hard drive of a Toshiba NB100 netbook then partitioned to make room for Ubuntu 10.04 and installed that after the Windows XP install. When I encrypt Windows XP, Truecrypt will overwrite the grub entry in the master boot record (MBR), I believe (?) and I won't be able to choose between XP and Ubuntu anymore. So I need to restore it back. I've searched fairly extensively for answers on Ubuntu forums and elsewhere but have not yet found a complete answer that covers all eventualities, scenarios and error messages, or otherwise they talk of legacy GRUB and not GRUB2. Ubuntu 10.04 uses GRUB2. My setup: Partitions: Windows XP, NTFS (to be encrypted with Truecrypt), 40Gb /boot (Ext4, 1Gb) Ubuntu swap, 4Gb Ubuntu / (root) - main filesystem (20gb) NTFS share, 55Gb I know that the Truecrypt boot loader replaces the GRUB when boot up because I've already tried it on another laptop. I want boot loader screen to look something like the usual: Truecrypt Enter password: (or [ESC] to skip) password is for WindowsXP and on pressing [ESC] for it to find the Ubuntu grub to boot from Thanks in advance for your help. The key area of the problem is how to instruct Truecrypt when escape key is pressed, and how the Grub/Ubuntu can be made visible to the truecrypt bootloader to find it, when the esc key is pressed. Also knowing as chaining.

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  • Structuring database for multi-object "activity" and "following" functionalities

    - by romaninsh
    I am working on a web application which operate with different types of objects such as user, profiles, pages etc. All objects have unique object_id. When objects interact it may produce "activity", such as user posting on the page or profile. Activity may be related to multiple objects through their object_id. Users may also follow "objects" and they need to be able to see stream of relevant activity. Could you provide me with some data structure suggestions which would be efficient and scalable? My goal is to show activity limited to the objects which user is following I am not limited by relational databases. Update As I'm getting advices on ORM and how index things, I'd like to again, stress my question. According to my current design model the database structure looks like this: As you can see - it's quite easy to implement database like that. Activity and Follower tables do contain much larger amount of records than the upper level but it's tolerable. But when it comes for me to create a "timeline" table, it becomes a nightmare. For every user I need to reference all the object activities which he follows. In terms of records it easily gets out of control. Please suggest me how to change this structure to avoid timeline creation and also be abel to quickly retrieve activity for any given user. Thanks.

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  • How to get search engines to properly index an ajax driven search page

    - by Redtopia
    I have an ajax-driven search page that will allow users to search through a large collection of records. Each search result points to index.php?id=xyz (where xyz is the id of the record). The initial view does not have any records listed, and there is no interface that allows you to browse through all records. You can only conduct a search. How do I build the page so that spiders can crawl each record? Or is there another way (outside of this specific search page) that will allow me to point spiders to a list of all records. FYI, the collection is rather large, so dumping links to every record in a single request is not a workable solution. Outputting the records must be done in multiple requests. Each record can be viewed via a single page (eg "record.php?id=xyz"). I would like all the records indexed without anything indexed from the sitemap that shows where the records exist, for example: <a href="/result.php?id=record1">Record 1</a> <a href="/result.php?id=record2">Record 2</a> <a href="/result.php?id=record3">Record 3</a> <a href="/seo.php?page=2">next</a> Assuming this is the correct approach, I have these questions: How would the search engines find the crawl page? Is it possible to prevent the search engines from indexing the words "Record 1", etc. and "next"? Can I output only the links? Or maybe something like:  

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  • SEO - Index images (lazyload)

    - by Guilherme Nascimento
    Note:My question is not about Javascript. I'm developing a plugin for jQuery/Mootols/Prototype, that work with DOM. This plugin will be to improve page performance (better user experience). The plugin will be distributed to other developers so that they can use in their projects. How does the lazyload: The images are only loaded when you scroll down the page (will look like this: http://www.appelsiini.net/projects/lazyload/enabled_timeout.html LazyLoad). But he does not need HTML5, I refer to this attribute: data-src="image.jpg" Two good examples of website use LazyLoad are: youtube.com (suggested videos) and facebook.com (photo gallery). I believe that the best alternative would be to use: <A href="image.jpg">Content for ALT=""</a> and convert using javascript, for this: <IMG alt="Content for ALT=\"\"" src="image.jpg"> Then you question me: Why do you want to do that anyway? I'll tell you: Because HTML5 is not supported by any browser (especially mobile) And the attribute data-src="image.jpg" not work at all Indexers. I need a piece of HTML code to be fully accessible to search engines. Otherwise the plugin will not be something good for other developers. I thought about doing so to help in indexing: <noscript><img src="teste.jpg"></noscript> But noscript has negative effect on the index (I refer to the contents of noscript) I want a plugin that will not obstruct the image indexing in search engines. This plugin will be used by other developers (and me too). This is my question: How to make a HTML images accessible to search engines, which can minimize the requests?

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