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• Performance issues when you build a large crossroads

  Hello
  
  I have a performance issues when you build a large crossroads.
  
  So here's my situation:
  
  We use Discoverer Plus 10.1.2.45.46c
  Database Oracle 9.2.0.6 on Windows 2003
  OAS 10.1.0.3
  1.5 GB of RAM on my PC
  
  -J' planned a workbook with 1 single worksheet that takes 2 minutes to run. The table generated in the database to store the results from 19 columns and rows to about 225000 (I know that's a lot, but it is what the customer needs).
  
  -When I opened the workbook, it takes about 2 hours to recover the data. The data is retrieved in groups of 1000 and at the beginning, the lines are read much faster than at the end. There are also 15 minutes more to build the crosstab. So overall, it takes 2 hours and 15 minutes for the crosstab display on my screen.
  
  Can someone explain to me:
  -Why does take so long?
  -What can I do to improve the execution other than changing the application or displaying the results in a regular tab? Is there some setting that I can do on the database of the Oracle Application Server?
  
  Note: I have reproduced the worksheet in a simple tab and demand it. The table generated in the DB to store the results is the same and it takes only 2-3 minutes to open this spreadsheet and extract all lines.
  
  
  Thank you!
  
  Mary

  Hi Mary
  If you have 225 000 lines in your basic spreadsheet, then it will take a lot of time to produce a crosstab. The reason is that Finder can not calculate how many buckets he needs until he has read all the data. I can almost guarantee that with 225 000 lines to read and manipulate that you are short of memory.

  You might be better suited someone create and populate a table with the results you need rather than try to get the discoverer to calculate values in crosstab on the fly. If the final result of the crosstab is a few lines of aggregated data, then this is what is right for your table. The advantage of using a table and a few SQL (or PL/SQL) is that you will not be using your local computer during the aggregation / sorting phase. Don't forget a crosstab also sort based on the values in the left columns, the columns you have aggregations (buckets) you will have and most necessary sort. Using a table, you can index or even partition the results that will make for a much faster recovery.

  As a tip, recommend Oracle, confirmed by myself during the exhaustive tests, no do not build large paintings to double entry due to the performance of touch that you will have. The tables are much more efficient because you can pull back x lines at once. You can't do that with a crosstab and all values must be read before that whatever it is is displayed.

  Does that help?
  Concerning
  Michael

• Tips to make my most effective software

  Hello

  I am running LV 8.5 on a Dell under Windows XP SP3 machine. I have a peripheral 6252 LICOR of print data via a COM port to labview. Each bag contains 6 data items, all that I want to store and possibly save in a worksheet. The LICOR can send this packet of data every 1 second. However, when I put the high data rate, the data is saved only every 10-12 seconds. I guess that's due to failures in how I save everything in a table. Can you suggest anything I can do to make my program more efficient so that more data is backed up? Thank you.

  Your building of paintings will kill your speed and your memory.  What you should really do is to save your data in file after you buy it.  To do this use a configuration of producer/consumer .  The idea is to read the data, analyze and then use a queue to send the data to another loop that does the logging.  In this way, you won't have to keep accumulating your arrays and memory remains at least.

  And just to dig in the Instrument i/o Assistant.  You certainly don't want to use.  It provides a reading of your instrument for EACH parameter that you put in.  From what I can tell, you need to a single reading, and you can analyze all the settings from there.  What does that mean?  Your actions do not come from the same time of measurement.  This may cause some problems with the projects I've had.  So, Yes, you want to use the VISA gross.  You can do the installation before the loop and close the port after the loop.  The analysis of the data should be really simple as well.

• Compare sizes of many paintings

  Background: I made a program that takes 12 inputs and produces a particular movement in my engine based on these values. Now, I want to be able to run a sequence of these motions specified, with different inputs.

  I currently have a version where each of the 12 entries are separate tables. If the program is running in what concerns the scalar version with all the elements of the first and then second everything etc. I have do this a little cleanly by building a table of all tables 1 d 2D. The problem is that if the user forgets to enter any cell or one of the paintings is shorter or longer than the other (due to user error), then the gaps are filled with zeros. It's really bad for my program.

  Go, I thought to prevent it was ensuring that each table entry is the same size and if they are not then raise an error. It would also be good if not the table 2D fill with zeros, that he might fill it with the default value for each input array.

  QUESTION: Is there an easy way to compare the sizes of many tables?

  

  Clearly this always returns true because when I built the table he fills zeros everywhere where a cell was missing.

  I would say that your data structure is wrong.  What you need to do, is have a cluster to contain all the settings for one step.  Then you put it in a table.  This ensures that you have a value for each parameter for each step and makes it easier to the bottom of the line becaue you can use ungroup by name instead of having to the index of the right parameter and you keep the correct data type.

  

• How to build a table in a master/slave relationship?

  Hello NOR community,

  I can't build a table in a master/slave relationship. I want two paintings to be built for a fixed amount of iterations, once press the 'pressurization '. (This data acquisition would occur only once per program). I am new to Labview so I apologize in advance for my layout disorder.

  I want the slave program to create two tables and analyse the slope of pressurization to arrive at the same time as the master's program and the master program to continue to acquire data of pressure.

  Master slave relationship is even necessary here? How to pass a variable (pressure main once a loop without getting stuck in a nested loop situation?

  Here is a small example, just to show an idea (many things is not optimal in this example!). Based on your VI you have attached, you miss a lot of basic concepts of LabVIEW, you go through online training.

  

• Memory and large paintings

  I'm supposed to work on the code for a lab, and they reported possible problems with labVIEW eating through memory on long experience.  Someone in front of me tried to solve the problem, but I'm not sure if it's really help.  (I'm more familiar with languages such as C++ and did not use LabVIEW until this summer).

  Where I think that the problem is with the table (in a loop).  Based on the experience that the tables will be different sizes so how they manage the table is:

  -> It is a picture of a cluster of 2 elements

  -> The table is connected to a shift register.

  -> Change of registry is initialized before the opening loop by plugging in the shift register to a cluster of 2 '0 ".

  -> Each cycle loop they add new (a new cluster) data in the table on 'building the matrix '.

  There are several of these paintings, all being drawn so that they use 'building Cluster Array' and then this thread to the corresponding parcel (a XY Chart).  They use this after 'building the table '.

  This used to be, so the berries would expand and crash the program.  Anyone who added me an option to clear the tables, but I'm not sure if the way she conceived him actually free the memory since they are still a few problems.  The user enters a number in a control "become clear:  At each iteration that is a multiple of this number, the program passes the register shift an array containing a single element.  The table happened to put in place the same as the array passed to the initialization process.

  My concern is that code says never specifically delete the table or free the memory.  It feels very similar to the situation in C++ when the programmer dynamically creates a table (again) but never releases the table (using delete), instead, they just change where the pointer points.  He memory would be always linked towards the top and unusable.

  So I guess my question is, looking at the process above should use "remove table" to free the memory and let the program runs faster on longer experiences with large sets of data or makes labVIEW automatically deallocate this memory and so I should I should I look elsewhere in my program for the process that would slow down everything on experiences longer?

  Thank you

  Val

  
  

• What could be the reasons for overlays of Folio no do not build a scrolling region?

  What could be the reasons for overlays of Folio no not to build a scroll on a box group of texts-photos-paintings, places (in the usual way for a slider) in a container?

  Now, I found a way to do it. Save the Illustrator .eps files (curves/text converted to curves or not) in an old format (CS4) .ai files and paste illustrations in containers and adding them to the group the problem go away. The scroll box works now, but I really don't like this solution. So, I would appreciate a guru to explain this point. Thank you!

• Show Data Sources in Report Builder CF 2

  How can I see my paintings that I created in my local CF Admin?

  I'm sorry. I just saw on the reading that you talk about CF Builder. You should have gone to the CF Builder of this forum section!

  In any case, I have a suggestion based on my experience with the CF Builder plugin in Eclipse 3.7.1. (I'm assuming that you have enabled the use of RDS). Go to the menu Builder Eclipse/CF and go to:

  Window-Show View online => RDS Dataview

  A graphical user Interface should appear, showing you the data sources created in their tables and the administrator.

• What do I need to build?

  Hi all

  I want to build a web site for children to create maps and images or what they want.

  I want that they have the ability to choose what to add to the paint on a list of possibilities (Sun, trees, houses, their own uploads...), drag the map and put it somewhere.

  In addition, I would like to give them the opportunity to record their paintings, choose one (have small images of the previous maps or somwthing like this) and he continued whenever they want.

  To do this, I wanted to use the Flash for the interface, but I know that I need much more than that, I don't know what exactly.

  I will need to:

  * DB for the painings saved (can SQL save swf files?)

  * a connection option (need SQL here too I guess)

  * probably a way to connect flash and SQL (have no idea how it's done but I wheel something about PHP scripts)

  Something to put everything in a website (Dreamweaver? Flash Catalyst)?

  Can someone please list the software I'll need to build the complete web site?

  Thanks in advance

  Meir

  You will get the best answers in the Dreamweaver application development forum.  But yes.  I think that you have the correct priorities.  The only other thing I'll add is HTML CSS & coding skills are needed for your web site. DW is easy to use if understand the code.  It's an uphill battle if you don't.

  Good luck!

  Nancy O.

  ALT-Web Design & Publishing

  Web | Graphics | Print | Media specialists

  http://ALT-Web.com/

  http://Twitter.com/ALTWEB

• Create Foreign Key forced in Warehouse Builder

  Hello world
  
  Yet once I need your help, please.
  My question is: Warehouse Builder is a way to create relationships between the Dimension Tables and one fact Table?
  I give you a simple example:
  We have produced paintings, customer, sales. So product and customer become a dimension table and sales become a fact table. In this fact table, we store the product_table_key, the customer_table_key and the messure of sale itself.
  If we think of datamodeling aspects our relationship 1: n between product_dimension_table and fact_table and also a relationship 1: n between customer_dimension_table and fact_table.
  How can we create these reports in the Warehouse Builder?
  If we design the objects of SQL database, we could create the need forced like that:
  Fact_table ALTER TABLE ADD (REFERENCES of KEY FOREIGN (customer_dim_fk) customer (customer_table_key));
  
  Please let me know how we can treat them in Warehouse Builder. I don't want to create which restricts manually in SQL Developer later.
  Thank you very much!
  
  Kind regards
  David

  Hi David,

  You can create the foreign key in OWB.
  An example of comprime1 that is created or imported in OWB.
  Open the T1 table in the data editor.
  Click constraints
  Type a name for the constraint
  Set the foreign key type
  Choose the local column on which you want to create the FK
  Now goto reference tab and choose the table and column (PK) whereby the CF should have a reference.

  She's.
  Save and generate the table T1 script you will have something similar to the following

  ALTER TABLE '' ADD CONSTRAINT '' FOREIGN KEY ('')
  REFERENCES "" ("");

  You can do a lot of settings on this FK in Table T1---> configure---> foreign keys

  Thank you
  Fati

• Flex Charting 2 with Flex Builder 3

  I recently inherited a codebase that was built on Flex 2 and uses the Flex 2 graphics component. Flex Builder 3 is the only version of the currently available constructor, so what I use, but with "Flex 2.0.1 Hotfix 3" set compiler option.
  
  My problem is that the 'Flex Charting Trial' watermark will still appear on my paintings. I tried to set my Builder serial number 3 in the license.properties file as described in some documents, but it doesn't seem to make a difference.
  
  My license of Flex Builder 3 Professional gives the right to me to use the graphics component?
  
  If so, the serial number of my Builder 3 should work for Flex Charting 2?
  
  If not, where can I acquire the necessary serial number?
  
  Thank you
  David Mills

  This problem has been resolved with the help of Ryan to Adobe technical support. For any other person who suffers from this problem, the resolution is that you need a valid serial number Flex 2 w/graphics to be placed in the file '\sdks\2.0.1\frameworks\license.properties ' on the line ' graphics ='.»»

  To answer my own previous questions:

  Yes, Flex Builder 3 is supposed to give right to me to use the Flex Charting (which is integrated with Flex 3, but was an addon in Flex 2).

  No, the Flex Builder 3 series does NOT work with Flex Charting 2. You need a serial number w/Flex 2 charts.

  To anyone in this position, I would recommend opening case support tech via the web support portal and politely explaining your situation. It took a few days, but when I finally got someone who could help, the resolution was quick.

  Kind regards
  Dave

• ORA-28112: failed to perform the function of guidance - error in the Application Builder

  Hey all,.
  
  I added a political function to one of my paintings, and now I get this error when I try to update a report region that refers to this table.
  
  "The query cannot be parsed into the generator. If you believe that your query is syntactically correct, check the generic "columns" box below the source of the region without analysis. "ORA-28112: failed to perform the function of guidance."
  
  If I remove the policy then everything works fine. My application works well with the policy in place. I just get these errors in the application builder when refreshing a report or a LOV that references the secured table.
  
  The analysis schema is APPL_USER.
  
  Here's the political function:
  
  FUNCTION DOCUMENT_TABLE_POLICY (object_schema IN VARCHAR2 DEFAULT NULL
  object_name IN VARCHAR2 DEFAULT NULL)
  RETURN VARCHAR2 IS
  v_nt_seq NUMBER;
  BEGIN
  IF use = "APPL_USER" or INSTR(user, 'ITFC_') = 1 THEN
  RETURNS A NULL VALUE.
  END IF;
  
  IF V ('APP_USER') IS NOT NULL THEN
  IF V ('F_NT_SEQ') IS NOT NULL THEN
  v_nt_seq: = V ('F_NT_SEQ');
  ON THE OTHER
  SELECT NT_SEQ
  IN v_nt_seq
  OF APPL_USERS
  WHERE UPPER (NT_ID) = UPPER (V ('APP_USER'));
  END IF;
  
  RETURN ' (DOCUMENT_TYPE, MANAGED_BY_ELEMENT, PROGRAM_CODE, CONTRACT_NUMBER) IN (SELECT DISTINCT R.DOCUMENT_TYPE, USL. ELEMENT, USL. PROGRAM_CODE, USL. CONTRACT_NUMBER OF USL, R IPRACA_SECURITY_ROLES IPRACA_USERS_SECURITY_LINK WHERE R.SECURITY_ROLE_SEQ = USL. SECURITY_ROLE_SEQ AND USL. NT_SEQ = ' | To_char (v_nt_seq) | ')';
  END IF;
  
  -UNAUTHORIZED USERS CANNOT SEE ANY DATA
  RETURN '1 = 0';
  END;
  
  This is how to set up the policy:
  
  BEGIN
  
  DBMS_RLS. () ADD_POLICY
  object_schema = > 'APPL_USER '.
  , object_name = > 'APPL_DOCUMENT '.
  , policy_name = > 'APPL_DOCUMENT_POLICY '.
  , function_schema = > 'APPL_USER '.
  , policy_function = > ' APPL_SECURITY. DOCUMENT_TABLE_POLICY'
  );
  
  END;
  
  
  Any help would be greatly appreciated!
  
  Thank you
  
  Jonathan Hart
  APEX 3.1.1

  It is possible that this raises an exception:

  SELECT NT_SEQ
  IN v_nt_seq
  OF APPL_USERS
  WHERE UPPER (NT_ID) = UPPER (V ('APP_USER'));

  Is there a line in APPL_USERS where NT_ID = ?

  Scott

• iPhoto and building memory books

  I'm busy building a book to buy as a souvenir printed pictures of a trip.  I finished the book, but found a few more pictures and imported into the original event that I used for photos pic of for the book.  I can't find a way to add pictures of the book that are not part of the original event, I loaded in.  Any ideas?

  Jeff

  You declare iPhoto fo rMac - if you say that then it does not matter that Apple is no longer offers IPhoto print products - Photo Presto and had good reviews here

  As adding photos one ot a project existing simply select them in the main iPhoto window, and drag them to the project in the list source, on the left

  LN

• I have macBook build 10K 549 and I want to upgrade to the new OS system available while one will work on my device

  I have macBook build 10K 549 and I want to upgrade to the new OS system available while one will work on my device

  It is impossible to tell from this information. Choose about this Mac from the Apple menu, click more information and search the model identifier.

  If it's MacBook1, 1, 10.6.8.

  If it is MacBook2, 1-MacBook4, 1, 10.7.5.

  If it's MacBook5, 1 or MacBook5, 2, 10.11.6.

  If it's MacBook6, 1 or greater, 10.12.

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• SWIFT playgrounds, how to Code 2, build a loop, I can not find isOnGem

  Swift playgrounds, how to Code 2, build a loop, I can not all isOnGem. What Miss me? If I am not mistaken, is it a bug? How should I declare?

  I can't figure out how to solve the puzzle without this.

  isOnGem is not available as an option in the box to scroll so just type in from the table instead. If you enter exactly the same case, it will be recognized as legal code when you run your program.