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• SQL Down Under Show 51 - Guest Conor Cunningham - Now online

  - by Greg Low

  Late last night I got to record an interview with Conor Cunningham.Most people that know Conor have come across him as the product team wizard that knows so much about query processing and optimization in SQL Server. Conor is currently spending quite a lot of time working on Windows Azure SQL Database, which we used to know as SQL Azure. I'm still trying to think of a good way to say "WASD". I suppose I'll pronounce it like "wassid". Windows Azure SQL Reporting is easier. I think it just needs to be pronounced like "wazza" with a very Australian accent.In the show, we've spent time on the current state of the platform, on dispelling a number of common misbeliefs about the product, and hopefully on answering most of the common questions that seem to get asked about it. We then ventured into Federations, Data Sync, and Reporting.You'll find the show (and previous shows) here: http://www.sqldownunder.com/Resources/Podcast.aspxEnjoy!PS: For those that like transcripts, we've got the process for producing them much improved now and the transcript should also be up within a few days.

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• NetBeans, JSF, and MySQL Primary Keys using AUTO_INCREMENT

  - by MarkH

  I recently had the opportunity to spin up a small web application using JSF and MySQL. Having developed JSF apps with Oracle Database back-ends before and possessing some small familiarity with MySQL (sans JSF), I thought this would be a cakewalk. Things did go pretty smoothly...but there was one little "gotcha" that took more time than the few seconds it really warranted. The Problem Every DBMS has its own way of automatically generating primary keys, and each has its pros and cons. For the Oracle Database, you use a sequence and point your Java classes to it using annotations that look something like this: @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="POC_ID_SEQ") @SequenceGenerator(name="POC_ID_SEQ", sequenceName="POC_ID_SEQ", allocationSize=1) Between creating the actual sequence in the database and making sure you have your annotations right (watch those typos!), it seems a bit cumbersome. But it typically "just works", without fuss. Enter MySQL. Designating an integer-based field as PRIMARY KEY and using the keyword AUTO_INCREMENT makes the same task seem much simpler. And it is, mostly. But while NetBeans cranks out a superb "first cut" for a basic JSF CRUD app, there are a couple of small things you'll need to bring to the mix in order to be able to actually (C)reate records. The (RUD) performs fine out of the gate. The Solution Omitting all design considerations and activity (!), here is the basic sequence of events I followed to create, then resolve, the JSF/MySQL "Primary Key Perfect Storm": Fire up NetBeans. Create JSF project. Create Entity Classes from Database. Create JSF Pages from Entity Classes. Test run. Try to create record and hit error. It's a simple fix, but one that was fun to find in its completeness. :-) Even though you've told it what to do for a primary key, a MySQL table requires a gentle nudge to actually generate that new key value. Two things are needed to make the magic happen. First, you need to ensure the following annotation is in place in your Java entity classes: @GeneratedValue(strategy = GenerationType.IDENTITY) All well and good, but the real key is this: in your controller class(es), you'll have a create() function that looks something like this, minus the comment line and the setId() call in bold red type:     public String create() {         try {             // Assign 0 to ID for MySQL to properly auto_increment the primary key.             current.setId(0);             getFacade().create(current);             JsfUtil.addSuccessMessage(ResourceBundle.getBundle("/Bundle").getString("CategoryCreated"));             return prepareCreate();         } catch (Exception e) {             JsfUtil.addErrorMessage(e, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));             return null;         }     } Setting the current object's primary key attribute to zero (0) prior to saving it tells MySQL to get the next available value and assign it to that record's key field. Short and simple…but not inherently obvious if you've never used that particular combination of NetBeans/JSF/MySQL before. Hope this helps! All the best, Mark

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• Concurrency checking with Last Change Time

  - by Lijo

  I have a following three tables Email (emailNumber, Address) Recipients (reportNumber, emailNumber, lastChangeTime) Report (reportNumber, reportName) I have a C# application that uses inline queries for data selection. I have a select query that selects all reports and their Recipients. Recipients are selected as comma separacted string. During updating, I need to check concurrency. Currently I am using MAX(lastChangeTime) for each reportNumber. This is selected as maxTime. Before update, it checks that the lastChangeTime <= maxTime. --//It works fine One of my co-developers asked why not use GETDATE() as “maxTime” rather than using a MAX operation. That is also working. Here what we are checking is the records are not updated after the record selection time. Is there any pitfalls in using GETDATE() for this purpose?

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• Újabb Oracle TPC-H rekord 3 TB-on, a nem klaszterezett kategóriában

  - by Fekete Zoltán

  A TPC-H a döntéstámogatási, adattárházas, üzleti intelligencia rendszerek teljesítményét méri, www.tpc.org. Most a 3 TB-os méretben született új rekord a TPC-H teszten a non-clustered kategóriában az Oracle Database 11gR2-vel, Sun M9000 hardveren. „A nagy méretu rendszerekben elért TPC-H benchmark-rekordokkal az Oracle Database 11g továbbra is orzi vezeto helyét az adattárház-rendszerek között" - nyilatkozta Juan Loaiza, az Oracle rendszertechnológiáért felelos elso alelnöke. „Ez az eredmény bizonyítja, hogy az Oracle Database 11g és az Oracle Sun SPARC Enterprise M9000 kiszolgálója együttesen nagyteljesítményu alapot biztosít az ügyfelek adattárház-alkalmazásai számára." Az Oracle sajtóhír magyar nyelven: Az Oracle® Database 11g új világrekordot állított fel a Sun SPARC Enterprise M9000 kiszolgálón végzett három terabájtos fürtözés nélküli TPC-H sebességpróbán Az Oracle sajtóhír angol nyelven: Oracle® Database 11g Sets New World Record TPC-H Three Terabyte Non-Clustered Benchmark Result on Sun SPARC Enterprise M9000 Server

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• Does google contribute ranking from cdn.example.com to example.com?

  - by DesignerGuy

  Background From my understanding, http://mywebsite.com/image.jpg, can help the ranking of http://mywebsite.com in a search engine, such as Google (obviously the search engine of primary concern). So, SEO-wise, moving an image to http://whatever-cdn.com/my-account/image.jpg is bad. A popular solution is to use a CNAME record, such as http://cdn.mywebsite.com, so that image.jpg can be accessed at http://cdn.mywebsite.com/image.jpg. The question Does http://cdn.mywebsite.com/image.jpg rank as effectively as http://mywebsite.com/image.jpg ? Does it help boost the main http://mywebsite.com ? Or, does it rank independently because it is a subdomain? Is there another option (a way to use a CDN without sacrificing ranking)?

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• I'm porting my app from iOS to Android: what do I need to know?

  - by kubi

  What pitfalls should I avoid? What Java language paradigms do Objective-C developers consistently misunderstand? I learned to program in Java, but I have worked in nothing but Objective-C for years now. How are the design patterns different between Android and iOS? If you've made the transition yourself, what parts of Android confused you or took you longer to learn than it should have? Is Eclipse the best OS X IDE for Android? For the record, my app is very strongly tied to UIKit and Foundation, so the word "porting" may be a misnomer; I'll actually be completely rewriting it for Android. No code reuse. Also, I'm doing this to learn Android, so I'd rather fail at the port and learn Android than take a shortcut.

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• Moving in a diamond - enemy gets stuck

  - by Fibericon

  I have an enemy that I would like to move as follows: Start at (0, 200, 0) Move to (200, 0, 0) Move to (0, -200, 0) Move to (-200, 0, 0) Move to start point, repeat as long as it remains active. This is what I've done to achieve that: if (position.X < 200 && position.Y > 0) { Velocity = new Vector3(1, -1, 0) * speed; } else if (position.X >= 200 && position.Y <= 0 && position.Y > -200) { Velocity = new Vector3(-1, -1, 0) * speed; } else if (position.X <= 0 && position.Y <= -200) { Velocity = new Vector3(-1, 1, 0) * speed; } else { Velocity = new Vector3(1, 1, 0) * speed; } It moves to the second point, but then gets stuck and appears to vibrate in place. How should I be doing this?

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• New Endeca Commerce 3.1 Specialization Launched!

  - by Roxana Babiciu

  We’ve just launched the Endeca Commerce 3.1 Specialization! This is your chance to be recognized as a proficient Oracle partner in selling, implementing and/or developing Endeca Commerce 3.1 solutions.  Check the specialization criteria to make sure you qualify! Oracle partners who achieve this Specialization are differentiated in the marketplace through proven expertise in Oracle Endeca Commerce 3.1. Are you a member of the Endeca Community?  If not, this is the place to be for exchanging ideas and questions regarding Endeca Commerce use. Do check it out! Topics covered in the Specialization include: Application Configuration Record Design Pipeline Development Working with Search Features Experience Manager Concepts Overview of Query Types Application development with the Assembler API

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• Broadcom 4365 wireless driver with 3.4 / 3.5 kernel

  - by zaid

  I used this package to install the driver on 3.2 Kernel and it was working perfectly. Unfortunately the system used to freeze randomly with 3.2 kernel so I installed 3.4 kernel, now there is no freezing, the only problem is that my wifi card is not working, I tried to re-install the package, but didn't work. I can see the driver in the "additional drivers" and it say that it is active, but when I execute iwconfig it doesn't show up. I've even tried ndiswraper and that didn't work either. my lspci: 01:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01)

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• What are Collaboration Data Objects (CDO)?

  - by Pranav

  Collaboration Data Objects or CDO, is a component that enables messaging between applications. It's something like the MFC we have in VC++ that enables us to prefer a simpler interface compared to the WIN32 API which, as an interface, still requires lots of escalation work by developers (yet very robust!). CDO is primarily built to simply the creations of messaging applications and we should keep in mind that CDO is NOT a new messaging model but is BUILT ON the MAPI architecture. It is just an extended interface that collaborates with MAPI and simplifies the programming task at hand for creation of messaging applications. CDO replaced Microsoft's earlier Active Messaging. CDO 1.2 enables us to play around with Data, send, receive emails and a host of other functions like rendering in exchange functionalities into HTML and do loads of other stuff. If you've got some firsthand experiences, a couple of tips will be great and will defiantly further my knowledge base in this area and hopefully get me a more refined understanding. Some pointers on MAPI will be pretty cool.

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• My Last "Catch-Up" Post for 2010 Content

  - by KKline

  I did a lot of writing in 2010. Unfortunately, I didn't do a good job of keeping all of that writing equally distributed throughout all of the channels where I'm active. So here are a few more posts from my blog, put on-line during the months of November and December 2010, that I didn't get posted here on SQLBlog.com: 1. It's Time to Upgrade! So many of my customers and many of you, dear readers, are still on SQL Server 2005. Join Kevin Kline , SQL Server MVP and SQL Server Technology Strategist...(read more)

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• How to negate current window in gnome shell?

  - by k0pernikus

  I dislike that most websites use a black font on white background for their sites, as it gets too tiresome for me to read. Back in the days of 11.04, using Gnome2 with compiz, there actually was a Negative feature that could negate the content of any window, making the background black and the font white. Much easier on the eyes for me. Yet since 11.10, using gnome shell with mutter, I have no idea if there is something alike out there. Hence my question: How do I negate the currently active window in gnome shell? I am not interested in alternative methods, e.g. user styles. I am aware of their existence but I find it much easier to just invert the screen by the hit of a key shortcut. I also want the solution to be application-agnostic. As I also from time to time would want to invert libre-office or some other glaringly white application.

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• Boss solution vs Developer solution

  - by mahen23

  The problem: When we were sending newsletters to customers, there was no way to confirm if the customer already received the mail. So the boss decided to implement this idea: Boss's Idea: Each time mail was being sent, do an INSERT in a db with the title of the newsletter being sent and the email address which is receving the email address. To ensure that any email address does not receive the same email twice, do a SELECT in the table and find the title of the newsletter being sent: if (title of newsletter is found) { check to see of the email we are sending mail to is already present. if it does, do not send mail } else { send mail } MY idea: create a column called unique and mark it as UNIQUE. Each time mail was being sent, concatenate email + newsletter id and record it in the UNIQUE row. The next time we do a "mysql_affected_rows" check to see if our INSERT was successful, we send the mail, else, there is already a duplicate and no need to send it.

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• The Apple iPad &ndash; I&rsquo;m gonna get it!

  - by Sahil Malik

  Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). Well, heck, here comes another non-techie blogpost. You know I’m a geek, so I love gadgets! I found it RATHER interesting to see all the negative news on the blogosphere about the iPad. The main bitch points are - No Multi tasking No Flash Just a bigger iPhone. So here’s the deal! My view is, the above 3 are EXACTLY what I had personally hoped for in the Apple iPad. Before the release, I had gone on the record saying - “If the Apple Tablet is able to run full fledged iTunes (so I can get rid of iTunes on my desktop, I don’t like iTunes on Windows), can browse the net, can read PDFs, and will be under $1000, I’ll buy it”. Well, so, the released iPad wasn’t exactly like my dream tablet. The biggest downer IMO was it’s inability to run full iTunes. But, really, in retrospect, I like the newly released iPad. And here is why. No Multi tasking and No Flash, means much better battery life. Frankly, I rarely multi task on my laptop/desktop .. yeah I know my OS does .. but ME – I don’t multi task, and I don’t think you do either!! As I type this blogpost, I have a few windows running behind the scenes, but they are simply waiting for me to get back to them. The only thing truly running and I am making use of, other than this blogost, is media player playing some music – which the iPad can do. Also, I am logged into IM/Email – which again, iPad can do via notifications. It does the limited multitasking I need, without chewing down on batteries. Smart thinking, precisely the reason I love the iPhone. I don’t want a bulky battery consuming machine. Lack of flash? Okay sure, I can’t see Hulu on my iPad. That’s some loss. I can see youtube. Also, per Adobe I can’t see some porn sites, which I don’t want to see on my iPad. But, Flash is heavy. Especially flash video. My dream is to see silverlight run on the iPhone and iPad. No flash = not such a big loss. Speaking of battery life – 10 hours is plenty. I haven’t been away from electricity for that long usually, so I’m okay with charging it up when it runs low. It’s really not such a big deal honestly. Finally, eBook functionality – wow! I went on the record saying, eBook readers are not for me, but seriously, the iPad is perfect for my eBook needs at least. And as far it being just a bigger iPhone? I’ve always wanted a bigger iPhone, precisely for the eBook reading experience. I love my iPhone, I love the apps on it. The only thing that sucks about the iPhone is battery life, but other than that, it is the best gadget I have ever bought! And something that runs on mobile chips, is that thin, and those newly written apps .. mail, calendar .. I am very very excited to get my iPad, which will be the 64gig 3G version. The biggest plus in an iPad ……… no contract on data. I am *hoping*, this means that I can buy a SIM card in Europe, and use the iPad here. That would be killer awesome! But hey, if I had to pick downers in the iPad, they would be - - I wish they had a 128G Version. Now that we have a good video viewing machine, I know I’d chew up space quickly.- Sync over WIFI, seriously Apple.  Both for iPhone and iPad.- 3 month wait!!- Existing iPhone users should get a discount on the iPad data plan. Comment on the article ....

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• Assign keys to commands in Terminal?

  - by NES

  Is there a solution to assign special key combinations to words in terminal use. For example the less command is very usefull and i use i a lot to pipe the output of another process through it. The idea would be to set up special key combinations that are only active in terminal use assigned to write different commands? So pressing CTRL + l in terminal window could write | less or CTRL + G could stand for | grep Note: i just mean adding the letters to commandline not execute the finally. A similar way what's tabcompletion but more specific.

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• USB Audio Device Loopback Through Speakers

  - by matto1990

  I have a USB turntable which when plugged in to my ubuntu 10.10 machine appears in the audio settings as an input device (USB PnP Audio Device Analog Stereo) like a microphone. What I'd like to be able to do it to have the sound for that audio device played back through the audio output (speaker or whatever). I'm not too worried if there's a slight delay between the audio coming in and it being played out through the speakers. As far as I'm aware this is refereed to as software loopback. I can achieve exactly what I want if I open Audacity, enable software loopback and press record. Obvious this isn't ideal as I don't really want it recording what I'm playing all the time. I know this is possible because of the Audacity example however I'd like to know if there's a way to do it without it recording. I've search around for a while for a piece of software that does this, however I couldn't get anything even close. Any help would be greatly appreciated.

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• Oracle Weblogic 12c Launch

  - by Robert Baumgartner

  Am 1. Dezember 2011 wird Oracle WebLogic Server 12c weltweit vorgestellt. Um 19:00 findet ein Execuite Overview mit Hasan Rizvi, Senior Vice President, Product Development, statt. Um 20:00 findet ein Developer Deep-Dive mit Will Lyons, Director, Oracle WebLogic Server Product Management, statt. The new release of Oracle WebLogic Server is: • Designed to help customers seamlessly move into the public or private cloud with an open, standards-based platform • Built to drive higher value for customers’ current infrastructure and significantly reduce development time and cost • Enhanced with transformational platforms and technologies such as Java EE 6, Oracle’s Active GridLink for RAC, Oracle Traffic Director, and Oracle Virtual Assembly Builder Hier geht es zur Anmeldung: Anmeldung

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• Regardig Vb.net [closed]

  - by user68999

  hi everyone i am making a project for school management and manage all the record of student so I'm using VB.net 2008 and sql server 2008. i have a problem when i enter student date of birth in text box with date&time picker in database. but i want in the search option enter the date from date&time picker and get age of all the student data in data-view grid. like student are 10 year old, 11 year old etc. so how it can possible please help..........?

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• Détendez-vous avec le quizz informatique du chat de Developpez, avec plus de 150 questions thématiqu

  Détendez-vous avec le quizz informatique du chat de Developpez, avec plus de 150 questions thématiques Venez mesurer votre culture IT grâce à un jeu amusant crée par le responsable technique de votre club préféré. Developpez.com vous permet en effet de tester vos connaissances informatiques grâce à un quizz qui s'active en direct et à la demande sur le chat ! Il est donc possible d'initier une partie à l'envie (et à n'importe quelle heure !), ou d'en rejoindre une, avec vos amis ou bien d'autres passionnés qui fréquentent notre forum, comme vous. C'est le même genre de quizz que ceux que l'on peut trouver sur IRC : un bot posera des questions, et c'est le premier à donner la bonne réponse qui l'emporte...

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• LIRC-ZILOG on ubuntu 12.04

  - by aoman

  I followed these guides to configure a Hauppauge PVR, and after compiling the hpvr modules, I have this problem: (that also includes the zilog one) # locate zilog /lib/modules/3.2.0-29-generic/kernel/drivers/staging/media/lirc/lirc_zilog.ko /lib/modules/3.2.0-34-generic/kernel/drivers/staging/media/lirc/lirc_zilog.ko /usr/src/linux-headers-3.2.0-29-generic/include/config/lirc/zilog.h sudo modprobe lirc_zilog FATAL: Error inserting lirc_zilog (/lib/modules/3.2.0-34-generic/kernel/drivers/staging/media/lirc/lirc_zilog.ko): Invalid argument The PVR works and I can get a test video with sound. The remote does not. I want the transmitter to work so it can automatically change the channel on the cable box and find the video I wanted to record. The LIRC sources are not on Ubuntu sources and so I can only guess at what commands I might have to use. How do I resolve the error and get the remote working?

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• Using macro keys with razer blackwidow ultimate 2013

  - by user119020

  I recently bought a Razer blackwidow ultimate 2013 keyboard. The keyboad contains 5 macro keys and according to the manual, they can be quickly set using the key combination fn+f9. However, this doesn't work; it won't record any macros. All the other function buttons on the keyboard work fine (e.g. volume up, volume down, stand-by) Does anyone know how I can enable those keys? Maybe an extra package. I am using 64 bit ubuntu 12.04 Thanks in advance :)

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• New blog post shows immediately in google search results where as other HTML content takes time, why?

  - by Jayapal Chandran

  I have a blog which has been active for 3 years. Recently I posted an article and it immediately appeared in google search. Maybe 5 to 10 minutes. A point to note is I was logged into my google account. Maybe google checked my post's when I searched since I am logged in? Yet I logged out and used another browser and searched again with that specific text and it appeared in google search result. How did this happen? However, if I make an article in static HTML and publish, it takes time. (I assume this is the case but I haven't tested much). Yet tested a few cases after updating it in my sitemap xml. How does google search work for a blog and other content?

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• How can I store post rankings that change with time?

  - by Daniel Fein

  I'm trying to learn how to code a website algorithm like Reddit.com where there are thousands of posts that need to be ranked. Their ranking algorithm works like this (you don't have to read it, its more of a general question that I have): http://amix.dk/blog/post/19588 Right now I have posts stored in a database, I record their dates and they each have an upvotes and downvotes field so I'm storing their records. I want to figure out how do you store their rankings? When specific posts have ranking values, but they change with time, how could you store their rankings? If they aren't stored, do you rank every post every time a user loads the page? When would you store the posts? Do you run a cron job to automatically give every post a new value every x minutes? Do you store their value? Which is temporary. Maybe, until that post reaches its minimum score and is forgotten?

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• How to play the sound of an object sliding on another object for a variable duration

  - by Antoine

  I would like to add sound effects to a basic 2D game. For example, a stone sphere is rolling on wood surface. Let's say I have a 2 second audio recording of this. How could I use the sample to add sound for an arbitrary duration ? So far I have two solutions in mind: a/ record the sound for an amount of time that is greater than the maximum expected duration, and play only a part of it; b/ extract a small portion of the sample and play it in a loop for the duration of the move; however I'm not sure if it makes sense with an audio wave.

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• Impact of changing from PHP to Java after 1 year or 6 months

  - by user62909

  I'm MCA final year student and I have very poor school record and had 2 years of gap. I'm first class with distinction in graduation and in post graduation is first class.Companies are coming for campus recruitment.I have very less companies like 4 or 5 who don't impose any criteria. there is a company who work on PHP and i have cleared its aptitude test and technical only HR remaining. I'm actually interested in Java and have knowledge about it but company work on PHP.I was fretting about If i work on PHP for 6 or 1 year can I change later to Java ? because i will also have experience of 6 or 12 months ? Will be considered an experienced employee if I apply for java developer later ? Will manager think that I worked in PHP and not allowed for Java ? Will I have to pursue java OCJP certification so i can get job even after 1 year experience of PHP ? Only 8 days are remaining for Hr round so please need help

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