Maximum number of columns.

Hi all

I am brand new here. Please, I would like to know. In terms of performance and limits; is it advisable to have several columns, say about 200 or more lines of database?

Kind regards

Kevin

Unless someone just boldly published a select * from... (we all don't do, now us don't?)  performance wise, it would not really matter.

However, according to an administration or design view, you might want to rethink what it is you need to do.

And you need to tell us a little more about what requirement you want to meet, the nature of the system (OLTP / DSS) and so on...

So, basically "it depends"... IMHO

Tags: Database

Similar Questions

  • Maximum number of columns in model RTF Pivot

    HI -.

    For the model previously mentioned here matrix report problem with template RTF - text columns

    I want to restrict the maximum number of columns per page, and the table should be repeated for the rest of the columns in another page.

    For example, if there are 5 columns must be returned, I want the first 3 columns in the first page and the 2 others in a second page (with the hole repeating frame).

    It's for keeping data legible printing of the pdf format, otherwise the data seems damaged and unreadable.

    Y at - it ideas to achieve this requirement?

    Best regards

    Rupture of the horizontal column works fine in the attached version of the RTF model.

  • Maximum number of columns in the generic report

    What is the maximum number of columns in the generic report? I put it to 100, but the data that was displayed are always 60.

    Thank you.

    Hello

    It is 100.

    Oops, I thought it was, it seems, this maximum has been removed now - see here
    Maximum number of columns in the generic report

    See you soon

    Ben
    http://www.munkyben.WordPress.com
    Don't forget to mark the answers useful or correct ;)

    Published by: Munky on August 28, 2009 11:16

    Published by: Munky on August 28, 2009 11:17

  • IR - CubeQuery - no limit to the maximum number of columns or lines?

    In IR query processing cube, is there a limit to the maximum number of columns or lines? If so, how?

    When downloading of the results, are there limits to the maximum. lol the columns or lines as well?

    All documentation on its limits?

    Please help someone?

    Columns cannot be more than 256 upto Hyperion Interactive Reporting Studio 9.2.

    No, there is no limit to the maximum number of rows. It depends on the memory and available space on your machine.

    Please correct me if I'm wrong.

    I hope this helps.

    Kind regards

    Manmohan Sharma

  • Function of loading data - maximum number of columns?

    Hello

    I was able to create a page with load data wizard. I used this wizard page before with no problems, but in this case specific I want to load a spreadsheet with a lot of columns (99 to be precise). When I run the page, download the spreadsheet in the appropriate table, but only the first 45 columns. The other 56 columns have null for all rows. In addition, there are 100 rows in the spreadsheet and it does not load them all (it charges 39).

    Is there a limit to how many columns it can handle?


    Also, when I re - download the same file, the results of loading data show that he inserted 0 rows, update of 100 lines, failed 0 zeros. However, there are still only a total of 39 rows in the table.


    Thoughts?

    Steve

    Steve wrote:
    FYI, I understood why he was not load all 100 lines. Basically, I need to put two dependent columns in the definition of charge instead of one; It was see several rows in the spreadsheet and supposed that some were even record based on a single column. If this part is resolved...

    I still would like comments on the number of columns of load data wizard can handle, and if there is a way to manage more than 45.

    The load data wizard can handle a maximum of 46 columns: + {message identifier: = 10107069} +.

  • Registry XSD - ORA-01792: maximum number of columns in a table or view is 1000

    Hi all

    I am trying to record 3 patterns HTNG_ChargePostingRS.xsd, HTNG_ServiceIssueCreateRQ.xsd, HTNG_ServiceIssueNotifRQ.xsd. When I do, I get the above error. I tried again but this time I put the genTables = > FALSE. I was able to record everything except ChargePosting because it gave the same error.

    My questions are:

    1. What are the tables? The only thing I will use these patterns for is to validate incoming requests and post my answer.

    2. why if I do not generate the table always make the mistake?

    1. What are the tables?

    They are needed when you want to use the object-relational storage.

    Schema with genTypes and genTables set to 'true' record a set of types of objects and collections as well as tables of objects based on these types to store XML in a relational way.

    Read more in the documentation: http://docs.oracle.com/database/121/ADXDB/partpgschema.htm#BGBFAADE

    2. why if I do not generate the table always make the mistake?

    Dunno, maybe because you're still trying to generate the types of objects?

    But if you just need to record patterns of simple validation, then you have no need of types of objects or tables.

    Try again with genTypes-online fake and genTables-online set to false.

    If it still does not, thanks for posting the referenced schemas so that I can reproduce the problem.

    http://www.OpenTravel.org/OTA/2003/05' schemaLocation ="... /OpenTravel/OTA_CommonTypes.xsd"/ >

    http://www.OpenTravel.org/OTA/2003/05' schemaLocation ="... /OpenTravel/OTA_LoyaltyCommonTypes.xsd"/ >

  • editing a table to add the number of columns fails with ORA-01792

    I'm editing a table to add columns, and ORA-01792 receiver: maximum number of columns in a table or view is 1000. The table of the altar will be no more than 1000 columns. The environment is RHE5 Oracle 11.2. ALTER statement adds a lot of columns in the table, but when I do a manual change to add a dummy column it works, after that, if I run the original the change works!

    What is a table compressed with unused columns?

    This may explain the error with the limit of 1000.

  • MAX number of columns in Oracle

    What is the maximum number of columns allowed in an Oracle table?

    1000

  • maximum number of characters used in a column

    Hi all
    Suppose I have a table named employee with two fileds (Emp_id and name)
    I need the query to find the maximum number of characters used in the column name until now.

    CNA anyone help me.

    combine the MAX and LENGTH

    as in:

    SQL> select max (length (ename))
      2    from emp
      3  ;
    
    MAX(LENGTH(ENAME))
    ------------------
                     6
    
    SQL> 
    
  • How can I find the maximum number of recorded sessions ever?

    Hello

    I see the sessions_highwater column in the license of $ v is the maximum number of sessions since the database startup time, but I wonder if there is a view that shows the maximum number of sessions ever recorded? (that is, before the last restart of the database)

    Thank you!

    Jon

    Query dba_high_water_mark_statistics

  • Number of columns in a logical and line refers

    I need help for oracle SQL,


    (Unique) student has five races in a table

    I need a select statement with student_id - 1 column


    I need to count the number of columns with values 'Yes' in them

    the columns are race5 for a single line, race3, race1 race2, race4 - this should be ndcolumn 2


    The 3rd column must contain the maximum of the race with 'Yes' in the

    That is to say if race1 and race 3 'yes' in them are values I need 3 in the column next, - 3rd column

    Can someone help me with this

    Hello

    As stated by John, the datamodel is wrong and keep it as a separate table (student_id, race_id) will be ideal. But, if you want to continue to use your existing data model, you can use something like

    WITH students AS (SELECT 1 student_id,
                             'Yes' race1,
                             'No' race2,
                             'Yes' race3,
                             'No' race4,
                             'Yes' race5
                        FROM DUAL
                      UNION ALL
                      SELECT 2 student_id,
                             'Yes' race1,
                             'No' race2,
                             'Yes' race3,
                             'Yes' race4,
                             'No' race5
                        FROM DUAL)
    SELECT student_id,
           DECODE (race1, 'Yes', 1, 0)
        + DECODE (race2, 'Yes', 1, 0)
        + DECODE (race3, 'Yes', 1, 0)
        + DECODE (race4, 'Yes', 1, 0)
        + DECODE (race5, 'Yes', 1, 0) count_race,
           CASE
             WHEN race5 = 'Yes' THEN 5
             WHEN race4 = 'Yes' THEN 4
             WHEN race3 = 'Yes' THEN 3
             WHEN race2 = 'Yes' THEN 2
             WHEN race1 = 'Yes' THEN 1
             ELSE 0
           END max_race
      FROM students
    

    Thank you
    sukhijank

  • Maximum number of errors to input registers, tried different settings to XML

    Hello

    I have a DYNAMIC pivot table where I am getting * "exceeded configured the maximum number of records of entry allowed.."

    My report is 20 columns * about 6000 lines so 120,0000. I tried to get both the parameters in bold below to 500,000 does not. I get the same error in the display of the table where the settings is always set to 64 000 lines.

    < Center >
    < MaxVisibleColumns > 5000 < / MaxVisibleColumns >
    < MaxVisiblePages > 2500 < / MaxVisiblePages >
    * < MaxVisibleRows > 500000 < / MaxVisibleRows > *.
    < MaxVisibleSections > 5000 < / MaxVisibleSections >
    * < DefaultRowsDisplayed > 500000 < / DefaultRowsDisplayed > *.
    < > 5000000 MaxCells < / MaxCells >
    < defaultRowsDisplayedInDownload > 15000 < / DefaultRowsDisplayedInDownload >
    < / Center >

    Here is my set of the section "views":




    75

    500000

    fake
    1920000
    5000
    2500
    500000
    5000



    75

    500000
    1920000
    2500
    500000
    5000


    140000


    1000000
    5000000

  • ORA-00018. Exceed the maximum number of sessions

    Hi all

    I have a windows Server 2003, oracle 10g release 2.
    connection of 300 users competitor.

    My SESSIONS parameter = 800
    My PROCESS parameter = 723.

    After 2 or 3 days, I got the following message when I try to connect.

    ORA-00018. Maximum number of sessions to exceed.

    even I have restart my server, I got this number sometimes.

    What is the problem? I'm really in a very bad situation, users can not connected.

    Thank you

    Please post output commands below:

    Select the value of the parameter $ v where name = "sessions";
    Select count (*) in the session of v$.
    Select * from v$ resource_limit;

    If you see the 3rd command output as equal values in all the columns then its correct and Oracle returned ORA-00018.

    Then, V$ SESSION is fake! It does not report all sessions really in use. If you look in V$ SESSION see text (with the help of V$ FIXED_VIEW_DEFINITION), you will see that V$ SESSION reports of the sessions USER and only BACKGROUND.

    But there is a 3rd type of session - a RECURSIVE session, which is used for recursive calls data dictionary as explained above. V$ SESSION does not display these.

    So what is the moral of this story?

    Oracle uses recursive sessions for recursive data dictionary operations
    These sessions are also taken from the array of objects in session state controlled by the session setting
    V$ SESSION shows no recursive sessions, but V$ RESOURCE_LIMIT told it the truth about the use of the session state object table
    If you hit the error ORA-00018, and then expand your table of parameters of sessions or configure your application to use fewer connections or sessions

    Note that Oracle 11.2 changed the automatic calculation of parameters of sessions and large number of session state objects is attributed to a number of default process.

    Source: http://tech.e2sn.com/oracle/oracle-internals-and-architecture/recursive-sessions-and-ora-00018-maximum-number-of-sessions-exceeded

    Concerning
    Girish Sharma

  • OBIEE 11 g: error - exceeded configured the maximum number of authorized release

    Hi guys,.

    We are implementing the OOTB repository, after some reports of loading data show the following error msg. Can someone tell me where to change the limits?

    «Error loading of list "«display error»»»
    «"Exceeded the configured maximum number of allowed output prompts, sections, the lines or columns»» It must be because of the restriction on the number of records in a report"

    Thanks in advance

    Hello user,.

    Even I faced the same error and solved in the way below: -.

    Error: Exceeded the configured maximum number of guests allowed output, the sections, the lines of OBIEE 11 g.

    So to solve this problem, add the below tags mentioned in the instanceconfig.xml file that is located under

    \Middleware\instances\instance1\config\OracleBIPresentationServicesComponent\coreapplication_obips1

    http://bidevata.WordPress.com/2012/04/27/exceeded-configured-maximum-number-of-allowed-output-prompts-in-OBIEE-11g/

    Mark useful/correct.

    Thank you
    OBIEELearner.

  • Maximum number of outdated lines

    Hello

    I'm using Smart View (Hyperion 11.1.2.1) where large data must be retrieved. But during the extraction, I get the error message "error Essbase (1020011): maximum number of lines [5000] exceeded." I modified the file essbase.properties as below.

    ################################################################################
    # Properties file used by ANALYTIC PROVIDER SERVICES
    # The version 11.1.2.1.00 - Talleyrand SP1
    ################################################################################

    # Use / for separator.

    # Data used in embedded mode JAPI directory
    # Specifies the location of the folder that contains the file domain.db
    # If the FMV - DESS_ES_HOME option points to a HPS installation directory and domain.db
    # beneath ESS_ES_HOME/data, this entry is not necessarily present.
    # else, specify the location of doamin.db here.
    # system.dataDir =

    # Specifies values for the Essbase Server network connection
    # APS will try netConnectRetry times to connect to an Essbase server.
    olap.server.netRetryCount = 1200
    olap.server.netConnectRetry = 3
    olap.server.netDelay = 1200
    olap.server.netSocketTimeOut = 1200
    # Specifies the maximum rows/columns for dataquery grid. a value of 0 indicates no limit.
    service.olap.dataQuery.grid.maxRows = 10000
    service.olap.dataQuery.grid.maxColumns = 255

    # Record Configuration - logging.xml moved

    # Maximum downtime for HPS sessions (in minutes)
    System.session.Timeout = 60

    # system.faultTolerance
    # retryTime - Maximum number of times to retry
    system.faultTolerance.retryTime = 10

    # monitorInterval - interval schedule thread to monitor the cluster components.
    term # in seconds
    system.cluster.monitorInterval = 30

    ################################################################################
    # BEGIN: Specific properties of Smartview
    ################################################################################
    SmartView.System.checkforspecialchars = true
    smartview.webservice.autoadd.EssbaseLocalhost.server = true
    SmartView.WebService.autoDeploy.force = false
    SmartView.WebService.autoDeploy.Warn = false
    SmartView.WebService.gzip.compression.Disable = false
    ################################################################################
    # At the END: specific properties of Smartview
    ################################################################################

    After doing this, I restarted the service - "Hyperion - Web Application Services Provider". I still get the same error in Smart View.

    Please let know us if I missed something.

    Thank you.

    Edited by: user13325223 January 6, 2012 12:39

    Have what place you updated of essbase.properties, as it exists in a number of places

    See you soon

    John
    http://John-Goodwin.blogspot.com/

Maybe you are looking for

  • How to disable the verification of certifcation

    All the sites I visit me to click on a pop up saying safety for site certification expired and I have to reverse it. This also includes your sites. The pop up according to this is from firefox

  • Mail cannot send e-mail

    Hello Messaging cannot send my email. I am always prompted to enter the password (even if she had been seized through the account setup): But it does not help: This e-mail account worked a few days with Mail on the Mac! It's an Hostgator POP e-mail a

  • Problem Driver WiFi HP 255 G2

    Hello, I just bought my G2 255 HP and I spend a lot of time to find the driver of apropriat. All the drivers that I tried to install start to load and then close any whitout a clue. The led of the button WiFi (f12) is always orange. In the device man

  • HP Pavilion a850y - used restore disc - could return to SP1 - cant update

    Don't let me upgrade to SP2 to SP3 any place I go through.  Tried to update Windows Update.  Tried to manually download SP2.  Tried to use Windows Doctor (ask me to update to SP3)

  • Missing Rasapi32.dll

    I tried to start my computer from Vista 32 bit in Normal mode, I've tried everything I can think of, it runs in safe mode. I tried to repair it with the CD, I tried starting with disabled all the programs running. I uninstalled all the programs, I do