Simple issue of UPDATE

Hello Experts,

I'm very asked a very simple and basic information on UPDATE. When an update statement is executed. As far as I know, the expected data is read into memory block, then edit its data in memory and a block of cancellation is also created for restoration. I'm just up to this point?

My question is when this block of data read from a hard disk into memory. What is its header changed block? (As the list of self-dealing in the block header data)

Concerning

Charlie

Yes the session which make changes (i.e. DML opreration) put the information of table locking ITL (which is in the header of the block), so that the other session try to change line information by checking ITL and wait for its completion.

HTH

Thank you

Tags: Database

Similar Questions

  • Plugin simple issue of Update Manager

    Hello

    Question very simple but just to confirm.

    I see "VMware vCenter Update Manager" in Manager plugins «Download and install» view state

    You want to know if I install it, there will be any kind of automatic configuration for downloading patches etc host, everything will begin affecting our hosts, vms, or nothing will change, there is tab Manager Update, nothing else?

    Thank you.

    There is no harm to download and install, this is a plugin from the client and does not affect your hosts somehow. Once installed get you an additional "Update Manager" tab where you can switch between the compliance and view admin to manage your infrastructure. Patches are downloaded in a central repository and deployed only to your hosts when you fix them - this is not an automatic process, please start it.

    See you soon,.

    Jon

  • What is a simple but effective update to the XPS 8500 video card? (Computer complete Newb)

    What is a simple but effective update to the XPS 8500 video card? (Computer complete Newb)


    Hello Dell Community. I read through the sticky XPS compatibility and some discussions on upgrading video cards. However, I couldn't find something that fits my needs. If you all can help me with this, would be great!

    Characteristics of the computer:

    • Dell Xps 8500
    • Intel Core i7-3770 CPU @ 3.40 GHZ
    • 16 GB of Ram
    • 64-bit operating system
    • AMD Radeon HD 7570

    Needs:

    • Run newer games of 2014/2015 without lag on medium to high heat (GTA V)
    • Relatively easy to install (remove some screws and paste the video card in and voila!)
    • No need to upgrade the power supply

    Budget is $ 200-250:

    • Obviously the lower the better and if need be, the budget is flexible. Depends on if the gain is important for the payment of the sum.

    Look forward to your answers!

    Thank you

    Richard

    A card that I know works is $200 would be

    EVGA GeForce GTX 960 SuperSC ACX 2.0 + 2GB GDDR5 128 bit 02 G-P4-2966-KR that it comes with a 2 X 6 pin cable 8 pin Y so the stock power should be good.

    more than 2 GB will not improve the map and it will increase the price.

    http://www.Newegg.com/product/product.aspx?item=N82E16814487091

    http://www.Amazon.com/EVGA-GeForce-dual-link-graphics-02G-P4-2966-KR/DP/B00SC6HAS4

    Don't get me wrong although it won't make a video full screen 4K.

    To 3-way SLI GTX 980 and a power of 1500W power supply in an area 51 triad.

  • Microsoft has never issued an update for the Win7 disk defragment utility?

    Microsoft has never issued an update for the Win7 disk defragment utility?  Thank you.

    Original title: Win7 updates

    To my knowledge, the Defragmenter from Windows 7 has not been maintained since the liberation.  You have a problem with it?

  • Start-up and white screen issue after updating to v10.11.5?

    I can't say 100% that my problems are related to the last update, but I thought I'd ask.

    I've updated about 4 or 5 days ago, and although the questions did not begin immediately, they start after the update. It should be noted that I have never had issues like this before.

    Here are some of my questions on my MacBook Pro (17 inch, early 2011), 2.2 GHz Intel Core i7, 8 GB at 1333 MHz DDR3, Intel HD 3000 512 MB graphics card

    1. the monitor will sometimes go haywire and a strange split, screen where the mouse can go to the left side of the screen and reappear on the right side of the screen, because the office is now split into two

    2. computer crashes and the monitor starts flashing to show a blue zigzag striped background

    3 freeze during startup and never restart computer. Occasionally, it will start very well, but the computer locks upwards at some point while using

    4 computer at boot flashing out to a white screen then restart never

    Thanks for any help.

    Now I'm starting to think my problems are related to a single user, sign in. Only 2 people use the computer and my connection seems to be fine. No crashes or anything like that.

    The problems start when my wife logs in to his user account.

    Thought I would mention it.

    Any help/response would be appreciated.

  • iPhone 5 netwrok issues after updating ios 9.2.1

    After upgrading to ios 9.2.1 my iphone 5 is not able to register with network airtel cell.

    Hi all

    I am also facing the same issue. My iPhone 5 will not connect to the cellular network AFTER that iOS updated 9.2.1 to level.

    Thank you, Siva

  • Qosmio F50 issues after update Bios 1.50

    Hello

    I have updated Bios version 1.50.
    I work with audio software and I noticed the performance issue (about 15%-20% performance reduction!).
    Operational front is also strange.

    Now, I can not turn off the lights or start Media center or something else.

    How can I downgrade the Bios Version 1.30?
    Winphlash doesn't let me do that.

    Help, please!

    Thank you

    May not be the answer you are looking for, but have you tried to do a restore of the software? Remember to back up everything!

  • Y at - it a simple way to update my old DRM protected songs to non - DRM?

    I have about 500 songs protected with DRM in my iTunes library that I would like to upgrade. I have considered various options. I like simple. I don't want Apple music and the library of Cloud, and I don't want iTunes game. I don't want to make CD and load it into iTunes. I don't want to buy music elsewhere as I already bought at iTunes. I looked at various converters for Mac DRM, and they look like the best option for now. Before you buy one of these, I missed something. I read in various allows, at the same time, you could upgrade all your DRM songs to non - DRM iTunes somehow, but can not know that one. Is there a simple way to solve this problem? Devices just Apple and software will play those songs.

    Hello

    The easiest way to upgrade your iTunes Store purchases, is to subscribe to iTunes game. Your iTunes library is analyzed to determine what can be improved. Previous purchases that can be upgraded will be either the iCloud 'Bought' or 'Matching' State. Then, you select Delete DOWNLOAD, see download icon. If the tracks is updated you will see change the transmission speed of 128 to 256 Kbps. Then, you select make available offline to download the new version. Be aware that a small number of titles isn't expandable.

    JIm

  • Issue of update of BIOS DX4860-US20P

    I had USB errors as well as the internal reader appearing and disappearing to be recognized by my system so I thought I would update to the BIOS.  I currenlty have BIOS P01 - A2 and strives to upgrade to P03 - A3. I tried both methods of as well Windows from DOS, but both fail to update the BIOS.  I've updated the BIOS in the past for several different types of motherboards and have never had any problems with simple bios updates.  Someone please advise.  Thank you!

    Are you sure that your office has an Ivy Bridge CPU and USB3.0?

    BIOS (for peripheral with Ivy Bridge & USB 3.0 taken in charge)

    If this isn't the case, you cannot use this BIOS to upgrade your PC.

  • compatibility issue after updating to the latest version of iTunes

    I have windows 7, 64 bit and have had iTunes top for more than a year.  I've just updated to the latest version and now I can't access it.  It is said that there is a compatibility issue.

    I would like to uninstall iTunes, reboot your computer.

    Reinstall again. If you went on an older version, which might be the cause.

    iTunes for Windows Vista or Windows 7: troubleshooting...
    http://support.Apple.com/kb/ts1717

  • BSOD issues after update 8.1

    My computer has no problems with Windows 8.0.  After the Windows 8.1 update, the system will BSOD crash leave once all the hours to once every few minutes.  I didn't notice all patterns on the block;. It is not obviously related to the execution of any piece of software. Often, the error message is different from the previous.  Some I've seen include:

    • Structure criticizes Corruption
    • Kernel security check failed
    • Memory management
    • IPF in nonpaged area
    • Unhandled Thread Exception system
    • Attempt to write to Readonly memory

    The research I've done has led to assume that it is a driver issue, but I am not sure. Today, the computer has to reset several times without warning and without displaying any error messages at all.  How can I get to the bottom of what's going on and solve the problem?  Any help would be greatly appreciated. Thank you!

    Thanks for the information.

    Your RAM is faulty and must be replaced.

    Kind regards

    Patrick

  • I'm having issues an update of Adobe CS5 hiking version 12.0 installation

    Whenever I try to install the update available, I get the following message:

    "The following updates do not have install." If you want to install these updates, fix the issues below and try again:'

    Screen Shot 2015-10-27 at 2.30.54 PM.png

    Help, please!

    Try direct updates

    https://www.Adobe.com/downloads/updates/

  • Issue by updating the configuration of the specific data of the provider for a virtual portgroup distributed in vcenter 5.5

    Hi all

    We strive to update provider specific data in config spec for a group of distributed virtual ports, we are able to reconfigure the dvportgroup for the first time and data updates are visible in the list of mob (QuerydvsbyUUID). But the second time, if we try to update specific provider we receive error in vcenter below.

    Could not complete the operation due to simultaneous changes by another operation


    The environment we use is as follows:

    Customer vpshere 5.5 ESXi and Vcenter 5.5 5.5.


    We use Vijava to update the specific configuration of the dvportgroup seller (reconfigureDVPortgroup_Task). When we looked this error, we found below thread:

    http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 2016329

    But we try to reconfigure the dvportgroup with the root user in VCenter.

    Ask you please let us know if I'm doing something wrong.

    Thank you and best regards,

    Aristides Maximilian


    Found a similar question in the communities,

    https://communities.VMware.com/message/2342966#2342966

    The issue is a bad configversion.

    Using the last ConfigVersion (the real value of the ConfigVersion from the portgroup extraction) in ReconfigurePortgroup_Task worked well.

  • Strange codec / import issues after update 20141

    Well, I'm bit clueless about a rather odd behavior since the update to 20141.

    Somehow first has problems with multiple codecs that work fine with 2014.0.0 and 0.1

    for example: AAC-Audio in many forms.


    Audio

    ID                                       : 2

    Format                                   : AAC

    Format/Info: Advanced Audio Codec

    Format profile: LC

    Codec ID                                 : 40

    Duration: 19 minutes 29 seconds

    Duration of the source: 19 min. 29 sec.

    Bit rate mode: Variable

    Flow rate: 192 Kbps

    Maximum bitrate: 251 Kbps

    Channels: 2 channels

    Position of the channels: Front: L R

    Sampling: 48.0 KHz

    Compression mode: lossy

    Stream size: 26.4 million (0%)

    The video stream corresponding (h264) works very well. The same file works without any problem in 2014.0.1

    Even made an another file mp4/h264 + aac right out of first 20141 results in the same issue that I can't import the file back to the first without losing the audio stream.

    The next strange thing is a file just with an Mpeg2 Video stream:

    General

    Full name: D:\Output.m2v

    Format: MPEG Video

    Format version: Version 2

    File size: 362 MiB

    Duration: 10 min 0 sec

    Overall bit rate mode: Variable

    Overall bitrate: 5 058 Kbps

    Video

    Format: MPEG Video

    Format version: Version 2

    Format profile: Main@Main

    The format, BVOP settings: Yes

    Format settings, matrix: Default

    Parameters of the format, GOP: M = 3, N = 12

    Duration: 10 min 0 sec

    Bit rate mode: Variable

    Flow: 5 058 Kbps

    Maximum bitrate: 7 000 Kbps

    Width: 720 pixels

    Height: 576 pixels

    View picture format: 16:9

    Frame rate: 25.000 fps

    Standard: PAL

    Color space: YUV

    The chroma subsampling: 4:2:0

    Color depth: 8 bit

    Scan type: Progressive

    Compression mode: lossy

    /(pixel*Frame) bits: 0.488

    The first frame of time code: 00:00:00:00

    Stream size: 362 m (100%)

    The file has been exported with first 2014.0.1 and I'm able to import it ti 2014.0.1 without any problem. But 2014,1 indicates that the file contains no supported formats.

    All this is repeatable that I re - install 2014.0 and everything works - and 20141 with these problems. This problem appears in new projects as well as in the 2014.0 - imported projects.

    I found another statement of this kind of problem here: https://forums.adobe.com/thread/1595720 - but the proposed solution does not work for me.

    So - any suggestions?

    PS: 2 screenshots (same file in 2014.0.1 and 20141) and link to the .mp4 file used:

    2014-10-13_151244.jpg

    2014-10-13_151848.jpg

    File: https://www.wetransfer.com/downloads/6a22bbc6e0bf4e6eb4ee52c4f710922220141013131512/699af4 628ca4c2579b20903f4a4918d820141013131512/833bd0

    Hello

    You can try and reset the preferences. Go to adobe documents. Rename the old adobe adobe folder.

    By doing this, you will lose the custom keyboard shortcuts.

    Check whether or not this step allows.

    Thank you

    Arjun

  • issues of update 4.0 to 4.1

    I am almost complete with the upgrade to vCenter 4.0 to 4.1 but have some questions of closing to help clean up some issues that I came across. The first is an error HA.

    1. "cannot complete the confiruration of the HA agent on the host" it sits on a hostand that host is be an IBM 3650 M2.  The other two hosts are 3650'2 but not M2.

    2. perhaps some DNS issues but I don't think sionce so I can do a NSLOOKUP of the host vcenter server.  It is wise or unwise to change any information of intellectual property on the new server for the old server info?

    3. Finally, what is the best way to handl the update manager?  Should I simply recreate everythign or should I migrate?

    Any help or comments are welcome.  Thank you all for a great site!

    Perry

    you don't have all your hosts added to vCenter using the FULL domain name, correct?  If this is not the case, unplug and remove then add with FULL domain name.  See also below for a troubleshooting more

    http://KB.VMware.com/kb/1001596

Maybe you are looking for