Is there a performance issue associated with SPARQL property path?

Is there a performance issue associated with SPARQL property path?

When we use paths property is our SPARQL queries, the queries never ends. I have a general problem, or do you have a problem with Jena and jena adapter version?

We run Oracle 12 c. The Jena adapter has version 12.1.0.1.

Thank you

By Oyvind

None of these requests ends. We have 300000 tuples in the model.

SELECT subclass, superClass

TABLE (SEM_MATCH)

"SELECT? subclass? superclass WHERE {? rdfs:subClassOf + subclass? superclass} LIMIT 10'.

SEM_Models ('isall1_x'),

NULL, null, null, null,

(= T, timeout = 100, qid = 123, STRICT_DEFAULT = F'));

SELECT subclass, superClass

TABLE (SEM_MATCH)

"SELECT? subclass? superclass WHERE {graph? g {? subclass rdfs:subClassOf +? superclass}} LIMIT 10'.

SEM_Models ('isall1_x'),

NULL, null, null, null,

(= T, timeout = 100, qid = 123, STRICT_DEFAULT = F'));

Tags: Database

Similar Questions

  • Windows Live Mail will not open attachments PDF - error message: there is no file associated with this extension

    My Dell Inspiron 560 with win7 Home premium 64-bit, windows live Mail worm 2009 and software adobe reader 9.3.4 will not open a .pdf attachment.  I get a window saying there is no file associated with this extension.  If I copy the file to the desktop and double click it opens.  Go to control panel, default programs, type of file associated with specific programs, the. PDF file for Adobe 9.3 How can I do so. PDF attachments will be open in Win Live Mail?  Thank you

    I read the investigation. If you read my reply you would ask in the correct forum now.

    If this is not enough, ask in the appropriate forum. This isn't a problem with Internet Explorer.

    Windows Live Mail Forum
    http://www.windowslivehelp.com/forums.aspx?ProductID=15

    Bruce Hagen
    MS - MVP October 1, 2004 ~ September 30, 2010
    Imperial Beach, CA

  • Cannot open e-mail messages. MSG, it's that there is no program associated with this file and define and association. Have no clue as to how or what program choose. Thank you jp__

    problem is email

    I assume you are talking about email attachments.  Each attachment has a three-character extension that associates the file with a program (in the start menu / default of programs / associate a file or Protocol with a program and then scroll through the list for the three-character extension).  Many are well known (.doc for Word Documents) and .pdf for Adobe Reader documents, but some are not so well known.  Some are also used by several different programs is sometimes important to know what program created the file in order to know what program to associate with her.  Your best bet since it is emails is to ask the sender to you say the name and version of the program so that you can install a program that can at least find out if is not working with the file if you do not recognize the extension.  Some attachments to e-mail are not intended to be read and there are programmatic reasons and must not be opened (but I can't give you a list of all of them - barely know they exist).

    Sometimes you can google the extension (for example, google .avi http://www.afterdawn.com/glossary/terms/avi.cfm) and a link arises which will tell you what programs can do the file type and which programs can read or work with the file type (or you may need to go to other links to get this reversal - in this case a lot of programs can open the file because it is a very common file for which many different programs have been developed - program that it becomes irrelelevant).  If it's a single program, so you know what you need.  If more than one program, you must the sender to tell what program you used to create the file unless the .avi file that can be read by the host (or you can guess or try different options until you find one that works but this can take a long time, can damage the open file with wrong program and can be expensive if you buy one of the programs that you are testing).

    In fact you do not define an association.  When you install the program, the extensions it can handle are identified by the Setup program and included in the listing file associations.  In fact, there is no way to add an extension to the registration of the association - you can change the programs that are used by the extensions in the list by default.  Some extensions are added automatically by Vista when installed and work a little differently than others (for example, .lnk or .exe), but we don't need to go into that, unless the extension you are having problems with is one of those (you don't mention the extension so I can't give you advice).

    I hope this helps.

    Good luck! Lorien - a - MCSE/MCSA/network + / A +.

  • SQL performance problem associated with rownum.

    Dear Experts,

    I have a sql

    SELECT TEMP.col1, TEMP.col2, TEMP.col3, TEMP.col4, TEMP.col5, ROWNUM, not

    (SELECT col1, col2, col3, col4 FROM table1 ORDER BY DESC col4 col5) TEMP WHERE rownum between? and?

    When I put the value of range rownum 1 and 100, it works very well. But when I put 101 and 200 no records returned.

    So I modified it as fllows

    SELECT TEMP.col1, TEMP.col2, TEMP.col3, TEMP.col4, TEMP.col5,NWR No. OF

    (SELECT col1, col2, col3, col4, col5, rownum NWR FROM table1 ORDER BY DESC col4) TEMP WHERE NWR between? and?

    It works fine and giving results desire. But the issue here is the modified SQL becomes very slow. It gives results in 20 minutes. Although SQL earlier gave results in a few seconds.

    Records in table1 is 40 million.

    Is there another way to get good performance results accurate?

    Your help will be much appreciated.

    Kind regards

    DD

    Hi try this... If you want that data should be in the specific order (as order by desc col4, then you can use analytical ROW_NUMBER() function as below). Try it out below and let me know in case of any problems

    SELECT TEMP.col1,

    TEMP.col2,

    TEMP.col3,

    TEMP.col4,

    TEMP.col5,

    NWR NO.

    FROM (SELECT col1,

    col2,

    col3,

    COL4,

    col5,

    ROW_NUMBER() over (ORDER BY DESC of col4) rno

    FROM table1)

    NWR WHERE between 101 AND 200;

    (GOLD)

    SELECT TEMP.col1,

    TEMP.col2,

    TEMP.col3,

    TEMP.col4,

    TEMP.col5,

    NWR NO.

    FROM (SELECT col1,

    col2,

    col3,

    COL4,

    col5,

    ROW_NUMBER() OVER(ORDER BY col4 DESC) NWR

    FROM table1)

    WHERE NWR<=>

  • How to recover my password Apple ID if I didn't address or email security issues associated with the account

    The company that I work for supplies of our phones. Us has recently undergone updates with personalized e-mail accounts. Before we generic email accounts. Generic email accounts are the partners of our identifying Apple I want to remove the generic e-mail ID Apple and its replacement by a new. However, my apple account has been locked due to forget the password and not knowing the answers to security questions. Is it possible to change the password of this Apple ID without going through the email address or the knowledge of security issues?

    If you forgot the Apple ID password:

    https://support.Apple.com/en-us/HT201487

  • I have a sync account that I use on several machines, but when I try to add on a new machine synchronization tells me there is an account associated with my email address

    I use successfully sync on my work PC, a laptop at home and my iPhone. But I can't seem to set up on a new PC. I always get an error of unknown account, if I try to send my password or request a password reset.

    Mozilla has dropped support for "FirefoxHome" on some time iOS devices there.

    If you have a sync account when you have an iPhone connected to this account, you probably use the version pre-Firefox sync with a 3rd party app 29 [bookmarks-On-The-Go] -? on the iPhone - as well as older versions of Firefox on the working PC and the laptop at home.

    Please check that your other installations of Firefox are up-to-date.

  • trunc (transaction_date) = trunc (sysdate) is there a performance issue?

    Hi gurus,

    I wrote a code that summarize the records for a day.
    I need to put it as a daily_summary_job.

    I used expression such as:

    trunc (transaction_date) = trunc (sysdate)

    Is it a good idea to truncate the dates on both sides?
    I need to summarize the data for a day.

    Thank you

    Hi Tina,

    as others already said, using a function on a column WHERE clause prevents the use of an index on that column. Another important issue for the performance, it's that the cardinality estimates are likely to be less accurate in this case.

    You can avoid these problems by creating an index based on a function on trunc (transaction_date). In addition to creating a usable index, it will also create a virtual column for which optimizer will collect stats.

    Best regards
    Nikolai

  • Performance issue with the submodels

    Hello
    I'm working on submodels and my requirement needs only one main calling location several specific submodels (a location may have several own submodels, e.g.: US_subtemp1, US_subtemp2, US_subtemp3... in the same way to other locations).
    I would like to know is there any performance issue associated with calls in the submodels and on how this decrease in performance can be minimized.

    Kind regards
    Arvind

    Use of the submodels with components imported alongside repeated sections in the main template layout is not recommended when the number of repetitions is high and the size of the document is large. BI Publisher optimize the xsl transformation internally, but it is not applied to xsl inside models of void.
    One of the extreme scenario is a main model set only a repeating section that matter a submodel of the header and the footer.
    A body of the repeating section is defined in the subtemplate. In this scenario, there is no xsl optimization made and you can easily see some differences in performance.

    As long as you don't need to repeat the layouts of submodels, you don't need to worry about this performance issue.

    Thank you
    Shinji

  • Version 6 of the Java performance issues

    It's kind of a continuation of the following thread:

    Performance of Java 1.6


    The question of the moose in the previous thread is not the issue. This is what came in the thread on the performace of Java 6 which I want to talk.


    My question is, is there anything new about the performance issues associated with Discoverer Plus and Java version 6? In my office (and others will benefit from its interventions to the referenced thread), we have problems of considerable achievements with Discoverer Plus (web version) with a PC with Java 6 on them. Some symptoms are: no no not able ge before the login screen, severe downturn PC or PC locked alltogether. To work around these problems, we were push PCs to Java version 1.4.2. Do the restore immediately takes care of the problems of slowness, lock up or connection problems. However, some of our applications in our office now requires Java Version 6. People who need new applications cannot use great Discoverer, because their Java version (Java 6), causes the discoverer to bog down.

    Is there a longer version and Java which took in charge the performance issues with the discoverer? Or maybe a patch. Our technicians helpdesk said that some versions of Java 6 had some security issues to consider. But as Java 6: update 11 had taken care of its security concerns. Update of Java 6 11 supported performance issues? Y at - it a patch for this version that made?



    Thank you

    Hello
    Certainly there is a performance issue if you have Java 1.4 on the server and Java 1.6 on the workstation. I hope you have discoverer 10.1.2.2, 10.1.2.3 with CP1, 2, or 4 or less CP6, you need to update Java on your server to equalize it with the version on your workstations. Some will say that older versions of 10.1.2.2 ok to upgrade Java on but I'm not sure.

    I recently mafe announcement on my blog which may help: http://learndiscoverer.blogspot.com/2009/04/be-careful-when-upgrading-to-java-16.html

    You will also find interesting information in this note on MetaLink: 728452.1

    Also, once you have upgraded your Java Server I recommend clearing the cache of Java on stations of local work and using Add/Remove programs to remove all older versions. Some people go as far as the removal of all versions of local Java that allows the server to discoverer of re - install the required version.

    Best wishes
    Michael

  • Soundcards 7 error IXPOOO. File TMP\patch.msp does not have a program associated with it for performing this action

    trying to update a program with an .exe file. windows\system32\cmd.exe opens and the error message opens. It is a windows 7 64 bit computer

    The file is not corrupted as it was sent directly to form me the server of LG electronics. I think that the problem comes from my computer. I tried to download other programs on the internet and now I get a message that the file is corrupted. The message is: "the Setup files are damaged, or are incompatible with this version of Setup. Fix the problem or get a new copy of the program. "It's too much of a coincidence. There is no way that I try to install all the files are corrupted.

    There may be something to do with the definition of default programs. I called my computer repair man to look at my computer.

    All the world run into this kind of problem?

    Thank you

    CT Nutritionist12345

    I solved the problem myself. I went in the default zone and seen that there is no program associated with it. as soon as I chose the windows installation program, I was able to update my program easily. Thank you all that you tried to help him.

  • I get a msg that PowerPoint Viewer is not a program that associated with it and can not get a .pps file to open

    I just downloaded viewer PowerPoint 2007 and tried to open a .pps file I have rec was in an e-mail message.  I get a msg that there is no program associated with it.  I know I have to go to folder options, but don't know what program I need to open it.  Help, please.

    1: save the attachment to your HARD drive. Right-click on it and open with | Choose the program. Select PPV 2007 and then check the box: always use this program to open this type of file.

    2: cannot open. PPS attachments directly from Outlook Express using XP/SP2 or XP/SP3:
    http://WindowsXP.MVPs.org/ppsopen.htm  Bruce Hagen MS - MVP [Mail]

  • I received an attachment to an email that I need to read, but when I try to open it I get an error box indicating that this file does not have a program associated with it.

    I am not computer savy and don't know how to find a program that will help me to open an RTF file. It is an attachment to an email that I really need to open. How can I solve this problem? Thank you

    Save the attachment in your documents folder. Can still be there, and double-click it. If there is no program associated with the RTF files, you will be asked to choose a default program. The choice of WordPad.

  • Is this possible? Subforms appeal based on the drop-down list associated with the database

    I'm hoping to make a dynamic shape and I wonder if it's possible.

    I have a database with about 300 entries - pieces of agricultural goods and a few little bits of info on each of these properties. I want to create a form where users can choose the piece there rather than the property in a drop-down list. Based on the property they select, another menu drop down to fill with the cultures associated with this property. Then based on the selection made in this drop-down list, a specific form will be brought upward.

    For example, a person selects property #102 in the drop-down list. In the database, property #102 is associated with wheat, barley and corn, so the next drop would be complete with these three cultures. The user selects the wheat in the drop-down list and the form of wheat would be called. 

    I hope I explained that well enough.

    Is this possible? And if it's possible, how complicated to do? Assuming that I already have the database and subforms, it would be a long process from weeks to the script, or it would be simple enough?

    Yes, this could be done, here is an example that should help: Drop dependent dropdown (specimen attached)

    On the basis of selection (change event of the second menu drop-down), you can show or hide a subform.

    -Wasil

  • error message "this file does not have a program associated with it to perform this action." at the opening of the local drive E:

    Hey,.

    I have a problem and I can't understand it. This error message comes out when I opened only local disk E:

    I have 2 HDD on my computer... 130 and 250 GB of both of them I do 2 partion so there C: D: E: and F:

    C: is my windows data and 3 others my data. When I open my computer and then click on local disk E: error message comes out.

    the error message is "this file does not have a program associated with it for performing this action.". but local disk E: can open it using Explorer tree (left side of the windows Explorer) or windows Explorer.

    THX

    Hi, Flix_is_here,

    Download this file and unzip it and then double click on it and let it run, it will restore most all default files for XP associations

    http://social.technet.Microsoft.com/forums/en/itproxpsp/thread/b48c2165-85f6-48bd-ac0f-be51dbf87f3d

  • If I try and open an email with an attachment I get an error message: this file does not have a program associated with it for performing this action.

    If I try and open an email with an attachment I get an error message: this file does not have a program associated with it for performing this action. create an association in the folders option control panel.  Once there, I don't know where to go

    What is the attachment file extension? If you know what program should open with, just do the following.
     
    1. download and save the attachment to the office.
    2. right click on the saved file.
    3. Select: Open with on the shortcut menu.
    4. click on: choose [default] program.
    5. Select: The appropriate program.
    6. check: always use the selected program to open this type of file.
    7. click on OK.
     
    This should allow you to open these attachments directly from email address now.

Maybe you are looking for