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  • How to lock a table for inserting in sql?

    - by Nandini
    hi, i have a web application in which i have a page named 'Data'.Many people will try to insert data into the table at a given time.So the reference no other than the primary key will get duplicated which should not be permitted.For inserting the data into the DB table, i am using a stored procedure in SQL.In my vb.net web application, i am using Business layer with enterprise library for calling the stored procedure.Now i want to lock the table for inserting so that when multiple user inserts, there wont be any complication.How can i do this?Please advice Regards

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  • How to enable iPhone auto lock during MPMoviePlayer playback?

    - by obiwahn
    When I play a video with MPMoviePlayerController in my app my iPhone does not auto lock (tested OS 3.0 & 3.1.2). However, the application.idleTimerDisabled = NO, so this setting is not affected by MPMoviePlayerController. How can I get my iPhone to sleep normally (e.g. after 3 min screen dims, then goes dark) when my app is running and playing a video?

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  • Using Nuxeo, how do I lock down a page so that it redirects to the login page if the user is unauthe

    - by Aaron Chambers
    I have been put on to a project using Nuxeo, late in it's lifecycle and need to change a few things before it goes live. I am having trouble finding out where I need to look to lock down a Nuxeo based application so that a user is redirected to the login page if they are unauthorised and access a restricted page. Can someone please shoot my some direction on where this sort of logic is kept or defined?

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  • Do really need a count lock on Multi threads with one CPU core?

    - by MrROY
    If i have some code looks like this(Please ignore the syntax, i want to understand it without a specified language): count = 0 def countDown(): count += 1 if __name__ == '__main__': thread1(countDown) thread2(countDown) thread3(countDown) Here i have a CPU with only one core, do i really need a lock to the variable count in case of it could be over-written by other threads. I don't know, but if the language cares a lot, please explain it under Java?C and Python, So many thanks.

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  • Possible to lock attribute write access by Doors User?

    - by Philip Nguyen
    Is it possible to programmatically lock certain attributes based on the user? So certain attributes can be written to by User2 and certain attributes cannot be written to by User2. However, User1 may have write access to all attributes. What is the most efficient way of accomplishing this? I have to worry about not taking up too many computational resources, as I would like this to be able to work on quite large modules.

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  • When using emacs do you rebind caps-lock to CTRL?

    - by Wayne Werner
    This question is, as indicated, for those who use Emacs. When you do, do you rebind the caps-lock key to CTRL, or do you use the "normal" ctrl key? I've recently learned some Emacs commands and was using the Visual Studio 2008 emacs commands for a while, and of course I used a caps-rebind tool, but I'm curious how many other people do. On a side note, the emacs bindings for VS are severely incomplete :(

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  • How can I lock the cursor to the inside of a window on Mac OS X?

    - by ZorbaTHut
    I'm trying to put together a game for Mac OS X which involves a lot of fast action and flinging around of the mouse cursor. If the user wants to play in windowed mode, I'd quite like to lock the cursor to the inside of the window to avoid accidentally changing programs in the heat of battle (obviously this will cancel itself if the user changes programs or hits escape for the pause menu.) On Windows, this can be accomplished easily with ClipCursor(). I can't find an equivalent on Mac OS X. Is there one?

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  • How does a hard drive compare to Flash memory working as a hard drive in terms of speed?

    - by Jian Lin
    Some experiment I did with hard drive read/write speed was 10MB/s write and 40MB/s read, and with a USB Flash drive, it can be 5MB/s write and 10MB/s read. Also, if I put a virtual hard drive .vhd file in a hard drive or in a USB Flash drive and try a Virtual Machine using it, the one using the hard drive is quite fast, while the one using the USB Flash drive is close to not usable. So I wonder some early netbooks use 4GB or 8GB flash memory as the hard drive, and even the Apple Mac Air has an option of using flash memory instead of a hard drive. But in those situation, will the speed be slower than using a hard drive, like in the case of a USB Flash drive?

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  • How do I make kdump use a permissible range of memory for the crash kernel?

    - by Philip Durbin
    I've read the Red Hat Knowledgebase article "How do I configure kexec/kdump on Red Hat Enterprise Linux 5?" at http://kbase.redhat.com/faq/docs/DOC-6039 and http://prefetch.net/blog/index.php/2009/07/06/using-kdump-to-get-core-files-on-fedora-and-centos-hosts/ The crashkernel=128M@16M kernel parameter works fine for me in a RHEL 6.0 beta VM, but not on the RHEL 5.5 hosts I've tried. dmesg shows me: Memory for crash kernel (0x0 to 0x0) notwithin permissible range disabling kdump Here's the line from grub.conf: kernel /vmlinuz-2.6.18-194.3.1.el5 ro root=/dev/md2 console=ttyS0,115200 panic=15 rhgb quiet crashkernel=128M@16M How do I make kdump use a permissible range of memory for the crash kernel?

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  • What solutions do I have to enforce memory limit on PHP server?

    - by Zulgrib
    I would like to enforce memory limit on a folder basis (and have it applied on subfolders) but I don't want the user able to change the memory limit. I know I can disable ini_set and I know I can enforce a hard limit or deny ini_set with Suhosin. With the first one, I doubt it will block changing it from the user.ini file, for the second, the user may still be able to change it to the hard limit I enforce with Suhosin. In both cases, I would prefer to not entierly block ini_set because it may have a legit use for other settings. In case it is important, I'm using PHP version 5.4.4 with nginx (PHP in FPM mode)

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  • how much more memcache memory do i need to get 95% hit ratio? [on hold]

    - by OneSolitaryNoob
    I have a memcache instance running that has a 90% hit ratio. How can I estimate how much more memory it needs to get to a 95% hit ratio? edit: This question was blocked, but I do not think this is impossible to answer. After all, anyone that's used a caching system HAS answered this question, most likely with trial&error&luck. I can look at my usage patterns. I can increase or decrease memory and see how hit rate changes. Both of these provide data that informs an estimate. But what's a good/better/best way to do this?

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  • Find what pages IE is fetching similar to console in firebug?

    - by Rob
    Firebug Lite bookmarklet is no help here, on half the pages it doesn't even show up. What I need is basically this: to show what IE is connecting to, because my application is working fine in firefox and chrome, but in an enterprise/corporate environment, I have to get it working with IE as well, and it's not working there. Any ideas of how I can get something similar just to see what the page is trying to (or not trying to) connect to? I'm using IE8 for this (on an windows XP machine, can't use IE9)

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  • Small 64-bit linux server distro with low memory footprint?

    - by djangofan
    I am looking for a linux server distro with a low memory footprint. I usually use Ubuntu but I need something with a smaller footprint in order to run a large Java JVM service inside of it and also run X-windows. Any ideas? The Java service needs to handle a 3GB memory heap and so I require a 64-bit OS and JRE. http://en.wikipedia.org/wiki/Comparison%5Fof%5FLinux%5Fdistributions I am thinking that ArchLinux is the only one that I can find right now. It uses 250MB out of the box (without X-win). Any better suggestions?

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