Search Results

Search found 58396 results on 2336 pages for 'key value store'.

Page 35/2336 | < Previous Page | 31 32 33 34 35 36 37 38 39 40 41 42  | Next Page >

  • Showplan Operator of the Week – BookMark/Key Lookup

    Fabiano continues in his mission to describe the major Showplan Operators used by SQL Server's Query Optimiser. This week he meets a star, the Key Lookup, a stalwart performer, but most famous for its role in ill-performing queries where an index does not 'cover' the data required to execute the query. If you understand why, and in what circumstances, key lookups are slow, it helps greatly with optimising query performance.

    Read the article

  • Optimizing near-duplicate value search

    - by GApple
    I'm trying to find near duplicate values in a set of fields in order to allow an administrator to clean them up. There are two criteria that I am matching on One string is wholly contained within the other, and is at least 1/4 of its length The strings have an edit distance less than 5% of the total length of the two strings The Pseudo-PHP code: foreach($values as $value){ foreach($values as $match){ if( ( $value['length'] < $match['length'] && $value['length'] * 4 > $match['length'] && stripos($match['value'], $value['value']) !== false ) || ( $match['length'] < $value['length'] && $match['length'] * 4 > $value['length'] && stripos($value['value'], $match['value']) !== false ) || ( abs($value['length'] - $match['length']) * 20 < ($value['length'] + $match['length']) && 0 < ($match['changes'] = levenshtein($value['value'], $match['value'])) && $match['changes'] * 20 <= ($value['length'] + $match['length']) ) ){ $matches[] = &$match; } } } I've tried to reduce calls to the comparatively expensive stripos and levenshtein functions where possible, which has reduced the execution time quite a bit. However, as an O(n^2) operation this just doesn't scale to the larger sets of values and it seems that a significant amount of the processing time is spent simply iterating through the arrays. Some properties of a few sets of values being operated on Total | Strings | # of matches per string | | Strings | With Matches | Average | Median | Max | Time (s) | --------+--------------+---------+--------+------+----------+ 844 | 413 | 1.8 | 1 | 58 | 140 | 593 | 156 | 1.2 | 1 | 5 | 62 | 272 | 168 | 3.2 | 2 | 26 | 10 | 157 | 47 | 1.5 | 1 | 4 | 3.2 | 106 | 48 | 1.8 | 1 | 8 | 1.3 | 62 | 47 | 2.9 | 2 | 16 | 0.4 | Are there any other things I can do to reduce the time to check criteria, and more importantly are there any ways for me to reduce the number of criteria checks required (for example, by pre-processing the input values), since there is such low selectivity?

    Read the article

  • JQuery get id or class, not value

    - by Celia Tan
    I'm new at JQuery, what I wanted to ask is how to select an option, then another option will automatic selected that have property of first option. I've given code like this: <select name="kendaraan"> <option value="" selected>pilih kendaraan!</option> <option value="B 2011 DR" class="B2011DR">B 2011 DR</option> <option value="R 3333 OKI" class="R3333OKI">R 3333 OKI</option> <option value="k03">jazz</option> <option value="k04">innova</option> </select> <select name="driver"> <option value="" selected>pilih kendaraan!</option> <option value="s02" car="B2011DR" style="display:none">jojon</option> <option value="s01" car="B2011DR" style="display:none">mamat</option> <option value="s04" car="R3333OKI" style="display:none">tukul</option> <option value="s03" car="R3333OKI" style="display:none">mamat</option> <option value="s07" car="k03" style="display:none">bejo</option> <option value="s05" car="k03" style="display:none">mamat</option> <option value="s06" car="k03" style="display:none">tukul</option> <option value="s08" car="k04" style="display:none">budi</option> <option value="s09" car="">komeng</option> </select> $('select[name=kendaraan]').change(function() { //hide all option $('select[name=driver] option').css('display','none'); //display option only for matched driver var isCar = $('select[name=driver] option[car='+$(this).val()+']'); isCar.css('display','block'); //auto select first matched diriver $('select[name=driver]').val( $(isCar[0]).val() ) }) But the jquery code is for getting the value of "kendaraan", how to match it with the class, not the value?

    Read the article

  • Store a formula in a table and use the formula in a javascript/PHP function

    - by Muhaimin Abdul
    I have a MySql database where part of it handles instrument's depth of water. Each instrument has its own formula of calculation how depth the water when the operator collect the reading I stored the formula for each instrument in database/MySql. Example formula: [55-57] this is the simple minus operation, where the number is actually represent the id of a row. How do I represent those number with id of a row and later convert it to javascript readable code. I simply want to do keyup event where everytime user key in something into text field then the other part of HTML would reflect changes based on formula that I fetched from database FYI, I'm using BackboneJS together with RequireJS

    Read the article

  • How to link to the iTunes store from iPhone app?

    - by marcgg
    Hi, I am trying to set up an application in which users will be able to stream music. When the user is streaming a MP3, I'd like to set up a link to the iTunes store to buy the MP3. How can I do that? I feel like there should be some simple way of doing so using the song title and artist name, am I mistaking? Thanks

    Read the article

  • what is best way to store long term data in iphone Core Data or SQLLite?

    - by AmitSri
    Hi all, I am working on i-Phone app targeting 3.1.3 and later SDK. I want to know the best way to store user's long term data on i-phone without losing performance, consistency and security. I know, that i can use Core Data, PList and SQL-Lite for storing user specific data in custom formats.But, want to know which one is good to use without compromising app performance and scalability in near future. Thanks

    Read the article

  • Where to store the session object in a Standalone application?

    - by HanuAthena
    I'm having a session object that does NOT implement the java.lang.Serializable. (its a legacy application, and now I can't go and change the code) Is there any way where I can store the session object some where and later GET BACK THE SAME STATE in a STANDALONE application. One thought is to use RMI. Is there any better way of achieving this. Thank you :)

    Read the article

  • Reinstall Acer OEM Windows 8, Windows 8 Recovery for Acer Aspire V5 122p

    - by stwindr
    My Acer Aspire V5-122P-61456G50NSS, model - MS2377, has crashed all together. It came preloaded with Windows 8 and I upgraded to windows 8.1 3-4 days before crash. Unfortunately I did not make any recovery media before the crash. While accessing the eRecovery on Acer store with my PC's serial no. it says nor RCD available for this. I tried recovery by loading recovery manager (Left Alt + F10) Various other advanced startup options (like holding shift key while turning on or pressing F8 key) returns nothing but no luck. However I am able to enter BIOS. After doing research on above condition on various PC forums, now my questions: I read that a 'Windows Recovery Drive' can be made on any PC running Windows 8 and could be used to repair another PC. Does anybody in SuperUser community have that (or a link to download the same from somewhere? as I'm unable to find anybody running windows 8 among my friends). I downloaded a window 8 Pro ISO and made a bootable USB. I was able to go to 'Repair Your Computer' option and after going to 'Reset your PC' option found that my recovery partition has gone/missing. I tried all options available but no luck. Then I tried to install with that Windows 8 Pro ISO but got message: "The product key entered does not match any of the Windows images available for installation. Enter a different product key". before this message I did not got any form to fill product key! Does this mean that the installer was picking up the key from BIOS (OEM Key)? and may be the installation did not succeeded because OEM Windows version was Window 8 and I was trying to install Windows 8 Pro. If that is the case then, could somebody please send me link to download an Windows 8 ISO? I am helpless and couldn't find anywhere on internet (without having to pay for a new key, but I should not pay as the installer will use OEM key).

    Read the article

  • EC2 instance store cloning or to ebs via gui management console

    - by devnull
    I have found similar questions here but the answer are either outdated or are from the command line. The case is this. I have an EC2 instance using instance store (this was the only AMI available for Debian 6 in Ireland). Now through the AWS GUI I can do a snapshot of the instance volume and/or even create a volume. But an image made from the snapshot doesn't boot. What is the best solution to either clone an EC2 instance that uses instance store OR from the created snapshot of the instance store to launch a new EBS instance (identical clone) FROM the gui aws management console and not command line ? Before turning this down consider that there is not similar question on how to do it via the aws management console. hint can't be done is not an appropriate answer. As you can create a snapshot of the instance store backed instance and/or a volume and create an AMI from that snapshot.

    Read the article

  • Can the Firefox password manager store and manage passwords for multiple sub-domains or different UR

    - by Howiecamp
    Can the Firefox password manager store and manage passwords for multiple sub-domains, or for multiple URLs in the same domain? The default behavior of Firefox is that all requests for *.domain.com are treated as the same. I'd like to have Firefox do the following: Store and manage passwords separately for multiple sub-domains, e.g. mail.google.com and picasa.google.com Store and manage passwords separately for different URLs in the same domain, e.g. http://mail.google.com/a/company1.com and http://mail.google.com/a/company2.com

    Read the article

  • EC2 instance store cloning or to ebs via guy management console

    - by devnull
    I have found similar questions here but the answer are either outdated or are from the command line. The case is this. I have an EC2 instance using instance store (this was the only AMI available for Debian 6 in Ireland). Now through the AWS GUI I can do a snapshot of the instance volume and/or even create a volume. But an image made from the snapshot doesn't boot. What is the best solution to either clone an EC2 instance that uses instance store OR from the created snapshot of the instance store to launch a new EBS instance (identical clone) FROM the gui aws management console and not command line ? Before turning this down consider that there is not similar question on how to do it via the aws management console. hint can't be done is not an appropriate answer. As you can create a snapshot of the instance store backed instance and/or a volume and create an AMI from that snapshot.

    Read the article

  • Finding Bluetooth link key in Windows 7, to double pair a device on dualboot computer

    - by Ilari Kajaste
    How can I dig up the Bluetooth link key for a paired device in Windows 7? Is this something that is dependent on the Bluetooth stack I'm using (Toshiba), or is there a generic place to store these in Windows 7? Note: I'm not talking about the six-digit code usually typed by the user during pairing - that is worthless since it's discarded after pairing process. What I mean is the 128-bit link key that the devices exchange during pairing, and use thereafter to encrypt all their Bluetooth traffic. Background: I dualboot Windows 7 / Ubuntu on my laptop, and I would like to have my phone paired to both OS's. Since the dualbooting computer has only one Bluetooth adapter and thus only one Bluetooth address, I cannot do two pairings to the phone, since on the second pairing (Windows) the phone just replaces the previous pairing (Linux) to the same Bluetooth address. A thread on Ubuntu forums pointed me to what I have to do - pair first on Linux, then on Windows, and then replace the link key on Linux side with the one Windows negotiated. I can find the Linux side pairing key from /var/lib/Bluetooth/[BD_ADDR]/linkkeys - no problems there. However, on Windows side I can't find the key. According to the forum post, on Windows side the key should be in SYSTEM\ControlSet002\services\BTHPORT\Parameters\Keys\[BD_ADDR] but while that registry key does exist, it has no subkeys. (And a similar registry path in ControlSet001 didn't have any subkeys either.) One thing I've been instructed to do is to capture all events during pairing with Sysinternals Process Monitor. I did this, but I haven't been able to find any useful information from the captured events, not even by exporting the data to a huge XML and grepping that with the BD_ADDRs (with or without colons). So how could I find the link key for a paired device in Windows 7? Some reference information: Wikipedia: Bluetooth, Security Now: Bluetooth security

    Read the article

  • App store for Windows

    - by Renaud Bompuis
    I'm wondering if there is any good App Store for Windows. I stumbled on allmyApps, and this question, but surely there are more out there. My dream Windows App Store would do things like: Allow me to download and install software Allow me to pay for apps Check which apps are already registered on my machine and keep track of them Keep track of all my machines Keep track of available upgrades and easily deploy them. Let me discover new apps that may be useful I know this is utopian on the Windows platform since development, upgrading, purchasing are so fragmented, but the Apple Store, Chrome App store, etc do make your life easier. Just trying to find something to ease the pain a little bit... So, are there any good services/software out there that would help me achieve some of the listed goals?

    Read the article

  • Pushing Windows Store apps silently

    - by seagull
    As part of a requirement I have been issued, I seek the ability to push apps from the Windows Store (.appx) to remote users. The framework surrounding the data transmission is sorted; What I need to know is if there is a script that can be sent out along with a URI or the package proper to facilitate installation on the user-side of the Windows Store app. I am well aware that numerous guides exist from Microsoft on pushing out Line-of-Business (LOB) (AKA Enterprise) applications -- that is, apps that have been developed in-house and are not for the consumption of the Windows store. This is inappropriate for my requirement, however; the customer wants their clients to receive apps that appear currently on the Windows Store, and for them to be installed in a silent manner. I've seen this guide; http://blogs.technet.com/b/keithmayer/archive/2013/02/25/step-by-step-deploying-windows-8-apps-with-system-center-2012-service-pack-1.aspx, which details doing exactly this, but it is only applicable to machines that are administered by a system running Windows Server 2012 R2 with the 'System Center 2012' bundle installed. The systems I target are considerably more decentralised than this, making this guide inappropriate. I have a hunch that Microsoft have deliberately designed the Windows Store to be this way, but I figured I ought to ask around before I resign myself to the requirement. Much obliged

    Read the article

  • Finding bluetooth link key in Win7, to double pair a device on dualboot computer

    - by Ilari Kajaste
    How can I dig up the bluetooth link key for a paired device in Win7? Is this something that is dependent on the bluetooth stack I'm using (Toshiba), or is there a generic place to store these in Win7? Note: I'm not talking about the six-digit code usually typed by the user during pairing - that is worthless since it's discarded after pairing process. What I mean is the 128-bit link key that the devices exchange during pairing, and use thereafter to encrypt all their bluetooth traffic. Background: I dualboot Win7 / Ubuntu on my laptop, and I would like to have my phone paired to both OS's. Since the dualbooting computer has only one bluetooth adapter and thus only one bluetooth address, I cannot do two pairings to the phone, since on the second pairing (windows) the phone just replaces the previous pairing (linux) to the same bluetooth address. A thread on Ubuntu forums pointed me to what I have to do - pair first on linux, then on windows, and then replace the link key on linux side with the one windows negotiated. I can find the linux side pairing key from /var/lib/bluetooth/[BD_ADDR]/linkkeys - no problems there. However, on windows side I can't find the key. According to the forum post, on windows side the key should be in SYSTEM\ControlSet002\services\BTHPORT\Parameters\Keys\[BD_ADDR] but while that registry key does exist, it has no subkeys. (And a similar registry path in ControlSet001 didn't have any subkeys either.) One thing I've been instructed to do is to capture all events during pairing with Sysinternals Process Monitor. I did this, but I haven't been able to find any useful information from the captured events, not even by exporting the data to a huge XML and grepping that with the BD_ADDRs (with or without colons). So how could I find the link key for a paired device in Win7? Some reference information: Wikipedia: Bluetooth, Security Now: Bluetooth security

    Read the article

  • Installing Windows 8 to another computer with an OEM product Key

    - by user180671
    Questions come up after reading the article about the new method Microsoft uses to License windows 8 computers. Let say I bought a Brand new laptop with windows 8 preloaded. Not like the old way, there is no OEM sticker in the back of the computer which can be used for reloading system.(new product key is stored in BIOS as mentioned in the article, the key can be pulled out by using a software anyway). Is it possible to install windows 8 on another computer with that particular key in case the computer is totally damaged? Here is what i tried: First, I extracted the key with a software name "windows 8 key viewer". using the windows 8 upgrade tool to determine what copy of windows 8 I should download for the installation. The tool did correctly recognized the key as a legitimate one. but it claims that key can not be installed with a retail media (Since it is an oem key). Does this mean the only way to do it is to use an OEM CD from the manufacturer? Will ISO from MSDN source do? or it is just not possible??

    Read the article

  • Practical mysql schema advice for eCommerce store - Products & Attributes

    - by Gravy
    I am currently planning my first eCommerce application (mySQL & Laravel Framework). I have various products, which all have different attributes. Describing products very simply, Some will have a manufacturer, some will not, some will have a diameter, others will have a width, height, depth and others will have a volume. Option 1: Create a master products table, and separate tables for specific product types (polymorphic relations). That way, I will not have any unnecessary null fields in the products table. Option 2: Create a products table, with all possible fields despite the fact that there will be a lot of null rows Option 3: Normalise so that each attribute type has it's own table. Option 4: Create an attributes table, as well as an attribute_values table with the value being varchar regardless of the actual data-type. The products table would have a many:many relationship with the attributes table. Option 5: Common attributes to all or most products put in the products table, and specific attributes to a particular category of product attached to the categories table. My thoughts are that I would like to be able to allow easy product filtering by these attributes and sorting. I would also want the frontend to be fast, less concern over the performance of the inserting and updating of product records. Im a bit overwhelmed with the vast implementation options, and cannot find a suitable answer in terms of the best method of approach. Could somebody point me in the right direction? In an ideal world, I would like to offer the following kind of functionality - http://www.glassesdirect.co.uk/products/ to my eCommerce store. As can be seen, in the sidebar, you can select an attribute the glasses to filter them. e.g. male / female or plastic / metal / titanium etc... Alternatively, should I just dump the mySql relational database idea and learn mongodb?

    Read the article

  • Debug.Assert replacement for Phone and Store apps

    - by Daniel Moth
    I don’t know about you, but all my code is, and always has been, littered with Debug.Assert statements. I think it all started way back in my (short-lived, but impactful to me) Eiffel days, when I was applying Design by Contract. Anyway, I can’t live without Debug.Assert. Imagine my dismay when I upgraded my Windows Phone 7.x app (Translator By Moth) to Windows Phone 8 and discovered that my Debug.Assert statements would not display anything on the target and would not break in the debugger any longer! Luckily, the solution was simple and in this post I share it with you – feel free to teak it to meet your needs. Steps to use Add a new code file to your project, delete all its contents, and paste in the code from MyDebug.cs Perform a global search in your solution replacing Debug.Assert with MyDebug.Assert Build solution and test Now, I do not know why this functionality was broken, but I do know that it exhibits the same broken characteristics for Windows Store apps. There is a simple workaround there to use Contract.Assert which does display a message and offers an option to break in the debugger (although it doesn’t output the message to the Output window). Because I plan on code sharing between Phone and Windows 8 projects, I prefer to have the conditional compilation centralized, so I added the Contract.Assert workaround directly in MyDebug class, so that you can use this class for both platforms – enjoy and enhance! Comments about this post by Daniel Moth welcome at the original blog.

    Read the article

  • Runaway version store in tempdb

    - by DavidWimbush
    Today was really a new one. I got back from a week off and found our main production server's tempdb had gone from its usual 200MB to 36GB. Ironically I spent Friday at the most excellent SQLBits VI and one of the sessions I attended was Christian Bolton talking about tempdb issues - including runaway tempdb databases. How just-in-time was that?! I looked into the file growth history and it looks like the problem started when my index maintenance job was chosen as the deadlock victim. (Funny how they almost make it sound like you've won something.) That left tempdb pretty big but for some reason it grew several more times. And since I'd left the file growth at the default 10% (aaargh!) the worse it got the worse it got. The last regrowth event was 2.6GB. Good job I've got Instant Initialization on. Since the Disk Usage report showed it was 99% unallocated I went into the Shrink Files dialogue which helpfully informed me the data file was 250MB.  I'm afraid I've got a life (allegedly) so I restarted the SQL Server service and then immediately ran a script to make the initial size bigger and change the file growth to a number of MB. The script complained that the size was smaller than the current size. Within seconds! WTF? Now I had to find out what was using so much of it. By using the DMV sys.dm_db_file_space_usage I found the problem was in the version store, and using the DMV sys.dm_db_task_space_usage and the Top Transactions by Age report I found that the culprit was a 3rd party database where I had turned on read_committed_snapshot and then not bothered to monitor things properly. Just because something has always worked before doesn't mean it will work in every future case. This application had an implicit transaction that had been running for over 2 hours.

    Read the article

  • Developing a long pannable, sprite-animated Windows Store app

    - by Groo
    I am creating my first Windows Store app in XAML, and I cannot seem to find a proper example for the requirements I have (I have spent a couple of days fiddling around, so I apologize if I missed something obvious). Basic idea of the app is to have a large scrollable canvas which would lazily start animating visible parts of the view as soon as user stops panning over a certain content (with some audio played also): My original idea was to use a StackPanel to add a bunch of custom controls, each of which would then animate itself once visible (with a short delay), but I have a couple of concerns: If the entire canvas is ~50 screen widths wide, is it feasible to load all content at the beginning, or do I need to plan doing some lazy loading during scrolling? For example, when I select a certain region in the Bing Travel app, it seems to lazily load tiles as I scroll it towards the end. Since content is stretched 100% vertically, and these animations are vectorized to be resolution independent, I am not sure if XAML (CompositionTarget) will be able to handle this, or I have to go for DirectX (MonoGame or C++) to get rid of flicker. Even better, is there an example for Windows 8 which uses a 100% vertically sized GridView with custom animated controls inside?

    Read the article

< Previous Page | 31 32 33 34 35 36 37 38 39 40 41 42  | Next Page >