Parallel trick works not.

Hello

I'm trying to update a table using the parallel indicator but the plan of the explain command shows that the DML does not use the suspicion. I also changed my session to enable parallel DML - ALTER SESSION ACTIVATE PARALLEL DML.

-create the table script

drop table test_tab;

create the table test_tab

as

Select rownum num, session_id 'session ID value' of the double

connect by level < = 1000000;

-SQL statement

Update / * + PARALLEL(test_tab,4) * / test_tab

the value num = num/100, session_id is SYS_CONTEXT ('USERENV', 'SESSIONID');

-Plan to explain

-------------------------------------------------------------------------------

| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |

-------------------------------------------------------------------------------

|   0 | UPDATE STATEMENT.          |   920K |    29 M |  1130 (1) | 00:00:14 |

|   1.  UPDATE | TEST_TAB |       |       |            |          |

|   2.   TABLE ACCESS FULL | TEST_TAB |   920K |    29 M |  1130 (1) | 00:00:14 |

-------------------------------------------------------------------------------

-the values of parameter in parallel

SQL > show the parallel parameter

VALUE OF TYPE NAME

------------------------------------ ----------- --------

fast_start_parallel_rollback string LOW

parallel_adaptive_multi_user Boolean TRUE

parallel_automatic_tuning boolean FALSE

parallel_degree_limit string CPU

parallel_degree_policy chain MANUAL

parallel_execution_message_size integer 16384

parallel_force_local boolean FALSE

parallel_instance_group string

parallel_io_cap_enabled boolean FALSE

PARALLEL_MAX_SERVERS integer 4

parallel_min_percent integer 0

VALUE OF TYPE NAME

------------------------------------ ----------- --------

parallel_min_servers integer 0

parallel_min_time_threshold string AUTO

parallel_server boolean FALSE

parallel_server_instances integer 1

parallel_servers_target integer 128

parallel_threads_per_cpu integer 2

recovery_parallelism integer 0

-Database version

11.2.0.2.0

Can you tell me why the plan of the explain command indicates that the update operation is not spawning in multiple threads?

Thank you!

You are running Enterprise Edition?

PQ is not part of the Standard Edition

Concerning

Jonathan Lewis

Tags: Database

Similar Questions

  • INDEX_FFS trick works not - why 11.2.0.1 on AIX

    Hello

    I try to run

    Select / * + INDEX_FFS (t index_name) * / *.
    from table_name t

    Index in question is local bitmap index on a partitioned table.

    Abnother query have done us a full scan against the table in question.

    Considering that a full scan can be quciker - wanted to at least try but when watching explian plan does not show with her.

    Can use
    Select / * + INDEX (index_name t) * / *.
    from table_name t

    and full bitmap index analysis.

    I would like to make fasft complete analysis to see if it is faster.


    Thank you very much

    Full Fast scan to avoid going to the table with a full table scan if the index contains all the columns needed.
    It's probably not the case with a bitmap index.

    Refer to the documentation [url http://docs.oracle.com/cd/E11882_01/server.112/e25789/indexiot.htm#sthref320]

  • Manual lens correction works not properly.

    I am trying to correct the perspective of an image in lightroom or in the vertical and horizontal manual lens corrections are not working properly, they are extending to the image in a weird way. I used these cursors repeatedly but I don't know why sometimes, they stretch the image. Here's a video that shows the effect of cursors: Lightroom: manual lens correction works not properly - YouTube. I would like your opinion on this is that you know how I can solve this problem. Thank you

    Controls LR Vertical and Horizontal Correction lens are designed to 'fix' the perspective distortion. What is the perspective of "normal"?

    Normal lens - Wikipedia, the free encyclopedia

    Lenses wide angle move the vanishing points more far and telephoto lenses get the close.

    https://en.Wikipedia.org/wiki/Perspective_distortion_%28photography%29

    LR Vertical and Horizontal controls use the focal length and camera metadata from the image file and adjust the image based on its effective focal length. A goal of 200mm if on a 1.5 crop body factor has an effective focal length of 300mm, resulting in an extreme telephoto perspective. That's why you see more "stretch" the image when you adjust the Vertical control, with a focal length lenses below)<>

    The image file video YouTube has vertical converging vertical very light, slight clockwise rotation and distortion in light pad. You should be able to correct the image for parallel verticals with small values of Vertical and Rotation adjustment. I suggest using "Activate profile Corrections" (profile tab) to fix the small amount of lens distortion.

    So always questions please post the image file on Dropbox or other filesharing site and I'll take a look. Thank you.

  • Since the update with OS 10.11.6, flash not working not properly

    Just got a new Mac Book Pro, new on mac in general. Had a video to play on a Web site but didn't work not, downloaded Chrome, worked well. Then made the update to OS 10.11.6 (not), and the video does not work (it says: cannot load the Flash plug-in). Made sure plugin has been enabled in my Chrome. Tried to download Flash himself, tried to remove Chrome and Flash and download Chrome still once, nothing works. Now for some reason, it works... What is (and was) happening... Someone has an idea? THX!

    -Chrome has built in Flash.

    -Safari does not come with Flash and use Flash with Safari, you need to download and install Flash

    So this is why worked chrome and Safari worked after downloading and installing Flash. Make sure you just threw always get Flash from the Adobe website.  Once you install Flash from Adobe it has also installed a Flash preferences panel in system preferences and yo can update Flash from here

  • iPhone upgrade of the navigation software now works not properly

    iPhone 5

    New IOS software updated and now the navigation screen not working not properly

    is your site on?

  • IOS 9.3.2 whatsapp works not

    IOS 9.3.2 whatsapp works not

    pls help

  • Some web features working not (buttons, drop-down menus, etc.)

    I have recently reinstalled windows 7 on my machine, and since I had problems with firefox. I had the same exact configuration installation and firefox before reinstall as far as I can remember, and I've not had the problem then. I tried the current version and the beta version of firefox.

    Basically, on some Web sites, there are some things that does not work as it should. Some buttons does nothing, some drop-down menu nothing done, image resizing works not etc.. Maybe it has something to do with javascript? Although most of the javascripts appears.

    Here's an example: on this site: http://www.bitcoinx.com/profit/
    'Reset' and 'Calculate' blue buttons does not work. The effect of the passage of the mouse works, but when I click on them, absolutely nothing happens.

    Rather a general answer I'm afraid, because I don't see an obvious problem & solution:

    1. Note for any problems with the sites that it is always worth to erase cookies from this site and to cache How to clear Firefox cache &delete cookies to remove the information from Web sites is stored on your computer
    2. Try in safe mode (see questions to troubleshoot Firefox in Safe Mode) that is accessible from your Firefox Button. (but at this stage try not yet reset)
    3. If the above does not help then try the Firefox reset, but be aware, you will lose the open tabs, extensions and preferences, you may need to favorite things first if you can find them still see Firefox Refresh - reset the settings and Add-ons
  • My Apple iPhone 5 touchscreen doesn't work not when the call comes. This problem is only in locked mode and mode unlocked when the call come it works normally. The problem is only locked Iphone and a just coming guard time. give soltn

    Hello can anyone give solution to my problem.

    my iPhone touch 5 works not when it is in locked mode and it's time all incoming call came the touch works do not. other times, the touch works normally wat is the problem. ?

    If you disturb not activated. Settings > do not disturb.

  • Keyboard and mouse not working not

    Keyboard and mouse not working not
    I tried to use the method of matching and again, it won't work. What should I do? Devastated and frustrated

    The same problem. Qosmio all in one PC. Also tried the instructions for pairing and the light indicates successful pairing but mouse and keyboard still does not. Can someone help please...

  • Satellite C660-115 - error message "Gfxui works not" at startup

    I got a Toshiba Satellite C660-115 Windows 7 and at startup I get the message ' gfxui works not ", can I ignore what my laptop seems to work ok.

    It is a problem with the GUI GUI Intel.
    You need to reinstall the Intel graphics driver.

    Visit the page of the Toshiba UE driver and download and save the correct Intel driver

  • Fn keys not working not not on my Satellite P200D-127

    Function keys not working not not on my Toshiba Satellite P200D-127

    I try to find the drivers for the keyboard, but not luck :(

    I'm trying to solve this problem since I bought this laptop.

    Can someone help me with this problem?

    P200D-127 is part of the PSPBLE series.
    The Toshiba European page doesn't provide the drivers XP especially for this series.
    But there are a few other P200 series and XP drivers were already released.

    Then why you n t check the hotkey Utility released for other laptop P200 series.
    Maybe it will work, if not, then there is nothing to do but wait until the drivers have been released.

  • Fingerprint reader not working not

    HI, I just recently to upgread my laptop operating system from windows 7 to Windows 8.

    Everything works well except for my fingerprint reader, his work not at all.

    I had downloaded and installed all the drivers from the Web site below, but it still does not.

    Can you help me solve this problem?

    Product name: HP Pavilion dv7 Notebook PC

    Product number: A3V80PA #UUF

    Current OS: Windows 8 Pro 64-bit

    http://h10025.www1.HP.com/ewfrf/wc/softwareCategory?OS=4132 & LC = on & CC = US & DLC = in & sw_lang = & Product = 5207...

    Press the Windows key + X and select Device Manager. Under biometrics, fingerprint reader not appear without one? or one! icon next to him?

    You mentioned that you have installed the driver. Did you also install the program SimplePass found on the link below? I saw a version of Windows 8 for the unit, but the version of Windows 7 can work. If the version of Windows 7 does not work, try right-clicking on the SimplePass program and select troubleshoot compatibility mode to see if it gets it to work.

    http://h10025.www1.HP.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-103162-1 & CC = US & DLC = in & LC = on & os = 4063 & Product = 5207968 & sw_lang =

  • Links not working not

    Links not working not not in Mail, Safari. Both freeze.

    Having the same problem with my air of iPad 2 since the upgrade to iOS 9.3 yesterday.

  • Some keys on the keyboard does work not after the suspect virus on Tecra

    Apostrophe, delete, semicolon and the end of the keys no longer work after a suspected virus attack. I found the same problem on the net record but apparently this guy fixes his problem after stop scroll or NumLock on found him.

    This isn't the case here, but it's something with numlock - registry Watch 2 and not 0. switch to 0 but when reboot 2 times.
    Suspect has changed through the bios. I thought that I couldn't get to the bios because DEL key does not but found ESC works.
    Tried to reset the values default to the bios but then can't save and exit it in accordance with the EndKey to work.

    I was running XP at the time of the (alleged) attack and could not correct the problem so to put the computer OEM as I hoped would help - there no, same problem, so instead of installing all the software on the computer with XP I upgraded to Windows7 - charge install.

    Keys still don't work - it was a real pain first as my computer was created for ctl + alt + delete to log on and I had to do with the keyboard of the screen - XP - it showed also that numlock performed before and after windows starts.

    The reason why I suspect a virus - my wife was watching an of its tv shows on the line of the country of origin (an another toshiba laptop) and I needed to use this laptop for something else, so I asked to use mine - then we turned off laptops and the morning turned tham back on again once , the other laptop with virus protection AVG reported several hits and this one with Norton (FAMOUS and completely up-to-date) flagged nothing - once I got the screen keyboard.

    Problems with this computer were found after scanning with different antivirus.
    Anyway - I find myself with 4 keys that don't work not on my keyboard (in fact they work after I have connected to the computer for the first time, but I had to hold them in place for a long time - and then the next time I rebooted, not at all and did not since)

    Here, any help would be greatly appreciated, I'm working on this all weekend with no joy at all.

    Thanks in advance.

    Having a virus attack, the Windows files will be destroyed. Try the scan with kaspersky on Nod 32. If not help, reinstall os because it is the best solution in your case.

  • internal mic not working not not on my iMac with El Capitan

    internal mic not working not not on my iMac with El Capitan?

    Please open the sound pane in system preferences and select the Input select the input device (it should be on the list) and move the input volume slider all the way to the right.

    Speak into the microphone. You shouldn't yell. The entry level indicator reacts?

    If not, and if there are other devices of entry in the list, do they work? What is?

Maybe you are looking for