Saving data using Write to PDM

Similar Questions

• you want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. A

  I want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. After that, I want to arduino to send out necessary via a serial port to labVIEW which should be read using visa read and store in a chain. While I am able to write or read both individually, I can't do it consecutively. I used advanced read and write vi for checking my code, but nothing is helping. The wrong bed 'time delay before execution. " Please let me know where I can go wrong. Also is it possible to write code for hx711 using labVIEW

  1. you need not "\n" on your orders println().  This command adds an end of line character already in the message.

  2. you get the error because you have a loop around your reading.  After the first reading (well technically, the second because of you add an extra line end character), there is nothing left in the port.  As a result, you will get the timeout.

  3. you should really consider using a Structure of the event.  This way you just don't write and read when you press the Write button and you can also use the structure of the event to make the loop to stop.  I also go up to close the port inside the stop-> value Change event.

  

• How to use "Write to the spreadsheet" to save the data when I want?

  When I use write on worksheet to record data, I must determine whether to save data or not before running the program, is there a way I can run the program and then decide whether to save the data, which means I can have a 'save' botton After runing the program, when I shoot, I can record data, otherwise, it is not. Thank you.

  
  

• Smart way to save large amounts of data using the circular buffer

  Hello everyone,

  I am currently enter LabView that I develop a measurement of five-channel system. Each "channel" will provide up to two digital inputs, up to three analog inputs of CSR (sampling frequency will be around 4 k to 10 k each channel) and up to five analog inputs for thermocouple (sampling frequency will be lower than 100 s/s). According to the determined user events (such as sudden speed fall) the system should save a file of PDM that contains one row for each data channel, store values n seconds before the impact that happened and with a specified user (for example 10 seconds before the fall of rotation speed, then with a length of 10 minutes).

  My question is how to manage these rather huge amounts of data in an intelligent way and how to get the case of error on the hard disk without loss of samples and dumping of huge amounts of data on the disc when recording the signals when there is no impact. I thought about the following:

  -use a single producer to only acquire the constant and high speed data and write data in the queues

  -use consumers loop to process packets of signals when they become available and to identify impacts and save data on impact is triggered

  -use the third loop with the structure of the event to give the possibility to control the VI without having to interrogate the front panel controls each time

  -use some kind of memory circular buffer in the loop of consumer to store a certain number of data that can be written to the hard disk.

  I hope this is the right way to do it so far.

  Now, I thought about three ways to design the circular data buffer:

  -l' use of RAM as a buffer (files or waiting tables with a limited number of registrations), what is written on disk in one step when you are finished while the rest of the program and DAQ should always be active

  -broadcast directly to hard disk using the advanced features of PDM, and re-setting the Position to write of PDM markers go back to the first entry when a specific amount of data entry was written.

  -disseminate all data on hard drive using PDM streaming, file sharing at a certain time and deleting files TDMS containing no abnormalities later when running directly.

  Regarding the first possibility, I fear that there will be problems with a Crescent quickly the tables/queues, and especially when it comes to backup data from RAM to disk, my program would be stuck for once writes data only on the disk and thus losing the samples in the DAQ loop which I want to continue without interruption.

  Regarding the latter, I meet lot with PDM, data gets easily damaged and I certainly don't know if the PDM Set write next Position is adapted to my needs (I need to adjust the positions for (3analog + 2ctr + 5thermo) * 5channels = line of 50 data more timestamp in the worst case!). I'm afraid also the hard drive won't be able to write fast enough to stream all the data at the same time in the worst case... ?

  Regarding the third option, I fear that classify PDM and open a new TDMS file to continue recording will be fast enough to not lose data packets.

  What are your thoughts here? Is there anyone who has already dealt with similar tasks? Does anyone know some raw criteria on the amount of data may be tempted to spread at an average speed of disk at the same time?

  Thank you very much

  OK, I'm reaching back four years when I've implemented this system, so patient with me.

  We will look at has a trigger and wanting to capture samples before the trigger N and M samples after the outbreak.  The scheme is somewhat complicated, because the goal is not to "Miss" samples.  We came up with this several years ago and it seems to work - there may be an easier way to do it, but never mind.

  We have created two queues - one samples of "Pre-event" line of fixed length N and a queue for event of unlimited size.  We use a design of producer/consumer, with State Machines running each loop.  Without worrying about naming the States, let me describe how each of the works.

  The producer begins in its state of "Pre Trigger", using Lossy Enqueue to place data in the prior event queue.  If the trigger does not occur during this State, we're staying for the following example.  There are a few details I am forget how do ensure us that the prior event queue is full, but skip that for now.  At some point, relaxation tilt us the State. p - event.  Here we queue in the queue for event, count the number of items we enqueue.  When we get to M, we switch of States in the State of pre-event.

  On the consumer side we start in one State 'pending', where we just ignore the two queues.  At some point, the trigger occurs, and we pass the consumer as a pre-event.  It is responsible for the queue (and dealing with) N elements in the queue of pre-event, then manipulate the M the following in the event queue for.  [Hmm - I don't remember how we knew what had finished the event queue for - we count m, or did you we wait until the queue was empty and the producer was again in the State of pre-event?].

  There are a few 'holes' in this simple explanation, that which some, I think we filled.  For example, what happens when the triggers are too close together?  A way to handle this is to not allow a relaxation to be processed as long as the prior event queue is full.

  Bob Schor

• I just replaced my MB Pro with a MB Air. Air has less memory and will not support a full restore of files and the saved data. How to do a partial restore

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• How to search a file .csv for data using its timestamp, then import into labview

  Hi, I am currently get density, viscosity and temperature of an instrument, adding a timestamp data and write to a .csv file that I can view in Excel. It works very well (see attached code) but reimport what I have to do now is search this csv file of data that has been obtained at one time, temperature, density & the values of viscosity at the moment in Labview to do some calculations with them, so that the data acquisition process is still ongoing.

  I found several examples on how to import a CSV together in labview, but none on how to extract data at a specific time. Also, every time I try to do anything with the file .csv for my data acquistion VI is running, I get error messages (probably because I'm trying to write and import data from the .csv file at the same time). Is there a way to get around this, perhaps using the case structures?

  If you need to know my skill level, I use LabVIEW for a few weeks and before that have basically no experience of writing code, if any help would be great. Thank you!

  TDMS is a little more complex than that.  Here is a proof of concept quickly lifting together:

  

  You should look at some of the examples of read/write TDMS to get a better handle on the tool.  While I should...

• automatic file naming and saving data

  Hello

  I'm building a program where there will be several scan-V for each temperature value. I would like to make automatic data backup them.

  To explain in more detail:

  I want the program to generate a new file on its own, give a file name according to the variable of temperature, backup data and again go to the next scan I - V and do it the same way.

  So if at a temperature of particulat say 300K, there are 5 iterations, my program must be such that it generates a new file say 300K_001(1st iteration) evrytime, 300K_002... 300K_005 (5th Iteration) automatically out of the button 'run '.

  Can someone help me on how to implement such a code.

  Thank you!

  Hi Lynn,

  I could get it using "write in measurement file. It creates a new file with each iteration on its own.

  Thank you

• BlackBerry smartphone accessing password Keeper data using office software

  I recently had a pressure of crack in the LCD screen on my Curve 8310.

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  I'm waiting on a replacement LCD screen, but need to pass, as soon as POSSIBLE.

  Are there programs to display the program on the pc?

  I tried a solution that actuall work, so I thought I'd post in case anyone else has this same problem.

  I had previously saved data for my Blackberry Curve 8310 using the office management software.

  I downloaded a Simulatr for my Curve 8310 and installed the software.  I found the Simulator to the BlackBerry Smartphone simulators - URL

  http://NA.BlackBerry.com/eng/developers/resources/simulators.jsp

  Once the program was installed, I ran the program, which shows a picture of the phone.

  I started my office management software.

  Now to back in the Smartphone Simulator

  In the menu, I selected 'USB cable connected' which simulates the connection of the smartphone.

  Once I did this, the office management software prompted me to create settings then phone again.

  Once I implemented this new virtual phone, I restored my backup from the virtual desktop management software to the new.

  I could then use the mouse to go to the password manager and open the program.  It prompted me for my password and all data appeared.

  Hope this helps someone else.  Good luck.

  Mark

• RESTful service cannot insert data using PL/SQL.

  Hi all
  Spin: stand-alone 2.01 AL on OEL 4.8 in box a. VM
  Database Oracle 10.2.0.4 with Apex 4.2.0.00.27 on OEL4.8 in the VM B box.
  
  Measure of oracle.example.hr performed without problem Restful services.
  
  Cannot insert data using AL 2.0.1 but works on 1.1.4 AL.
  who uses the following table (under scheme: scott):

   
  create table json_demo ( title varchar2(20), description varchar2(1000) ); 
  grant all on json_demo to apex_public_user; 

  and procedure (scott diagram) below:

  CREATE OR REPLACE
  PROCEDURE post(
      p_url     IN VARCHAR2,
      p_message IN VARCHAR2,
      p_response OUT VARCHAR2)
  IS
    l_end_loop BOOLEAN := false;
    l_http_req utl_http.req;
    l_http_resp utl_http.resp;
    l_buffer CLOB;
    l_data       VARCHAR2(20000);  
    C_USER_AGENT CONSTANT VARCHAR2(4000) := 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)';
  BEGIN
    -- source: http://awads.net/wp/2005/11/30/http-post-from-inside-oracle/
    -- Ask UTL_HTTP not to raise an exception for 4xx and 5xx status codes,
    -- rather than just returning the text of the error page.
    utl_http.set_response_error_check(false);
    -- Begin the post request
    l_http_req := utl_http.begin_request (p_url, 'POST', utl_http.HTTP_VERSION_1_1);
    -- Set the HTTP request headers
    utl_http.set_header(l_http_req, 'User-Agent', C_USER_AGENT);
    utl_http.set_header(l_http_req, 'content-type', 'application/json;charset=UTF-8');
    utl_http.set_header(l_http_req, 'content-length', LENGTH(p_message));
    -- Write the data to the body of the HTTP request
    utl_http.write_text(l_http_req, p_message);
    -- Process the request and get the response.
    l_http_resp := utl_http.get_response (l_http_req);
    dbms_output.put_line ('status code: ' || l_http_resp.status_code);
    dbms_output.put_line ('reason phrase: ' || l_http_resp.reason_phrase);
    LOOP
      EXIT
    WHEN l_end_loop;
      BEGIN
        utl_http.read_line(l_http_resp, l_buffer, true);
        IF(l_buffer IS NOT NULL AND (LENGTH(l_buffer)>0)) THEN
          l_data    := l_data||l_buffer;
        END IF;
      EXCEPTION
      WHEN utl_http.end_of_body THEN
        l_end_loop := true;
      END;
    END LOOP;
    dbms_output.put_line(l_data);
    p_response:= l_data;
    -- Look for client-side error and report it.
    IF (l_http_resp.status_code >= 400) AND (l_http_resp.status_code <= 499) THEN
      dbms_output.put_line('Check the URL.');
      utl_http.end_response(l_http_resp);
      -- Look for server-side error and report it.
    elsif (l_http_resp.status_code >= 500) AND (l_http_resp.status_code <= 599) THEN
      dbms_output.put_line('Check if the Web site is up.');
      utl_http.end_response(l_http_resp);
      RETURN;
    END IF;
    utl_http.end_response (l_http_resp);
  EXCEPTION
  WHEN OTHERS THEN
    dbms_output.put_line (sqlerrm);
    raise;
  END;

  and execution in sqldeveloper 3.2.20.09 when it connects directly to box B as scott:

   
  SET serveroutput ON
  DECLARE
    l_url      VARCHAR2(200)   :='http://MY_IP:8585/apex/demo';
    l_json     VARCHAR2(20000) := '{"title":"thetitle","description":"thedescription"}';
    l_response VARCHAR2(30000);
  BEGIN
    post( p_url => l_url, p_message =>l_json, p_response => l_response);
  END;

  leading to:

   
  anonymous block completed 
  status code: 200
  reason phrase: OK 
  with data inserted. 

  Installation using 2.0.1

     Workspace : wsdemo
   RESTful Service Module:  demo/
            URI Template:      test
                  Method:  POST
             Source Type:  PL/SQL

  and execution in sqldeveloper 3.2.20.09 when it connects directly to box B as scott:

   
  SET serveroutput ON
  DECLARE
    l_url      VARCHAR2(200)   :='http://MY_IP:8585//apex/wsdemo/demo/test';
    l_json     VARCHAR2(20000) := '{"title":"thetitle","description":"thedescription"}';
    l_response VARCHAR2(30000);
  BEGIN
    post( p_url => l_url, p_message =>l_json, p_response => l_response);
  END;

  leading to:

   
  status code: 500 
  reason phrase: Internal Server Error 
  
  Listener's log: 
  Request Path passes syntax validation
  Mapping request to database pool: PoolMap [_poolName=apex, _regex=null, _workspaceIdentifier=WSDEMO, _failed=false, _lastUpdate=1364313600000, _template=/wsdemo/, _type=BASE_PATH]
  Applied database connection info
  Attempting to process with PL/SQL Gateway
  Not processed as PL/SQL Gateway request
  Attempting to process as a RESTful Service
  demo/test matches: demo/test score: 0
  Choosing: oracle.dbtools.rt.resource.templates.jdbc.JDBCResourceTemplateDispatcher as current candidate with score: Score [handle=JDBCURITemplate [scopeId=null, templateId=2648625079503782|2797815111031405, uriTemplate=demo/test], score=0, scope=SecurityConfig [constraint=none, realm=NONE, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true]
  Determining if request can be dispatched as a Tenanted RESTful Service
  Request path has one path segment, continuing processing
  Tenant Principal already established, cannot dispatch
  Chose oracle.dbtools.rt.resource.templates.jdbc.JDBCResourceTemplateDispatcher as the final candidate with score: Score [handle=JDBCURITemplate [scopeId=null, templateId=2648625079503782|2797815111031405, uriTemplate=demo/test], score=0, scope=SecurityConfig [constraint=none, realm=NONE, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true] for: POST demo/test
  demo/test is a public resource
  Using generator: oracle.dbtools.rt.plsql.AnonymousBlockGenerator
  Performing JDBC request as: SCOTT
  Mar 28, 2013 1:29:28 PM oracle.dbtools.common.jdbc.JDBCCallImpl execute
  INFO: Error occurred during execution of: [CALL, begin
   insert into scott.json_demo values(/*in:title*/?,/*in:description*/?);
  end;, [title, in, class oracle.dbtools.common.stmt.UnknownParameterType], [description, in, class oracle.dbtools.common.stmt.UnknownParameterType]]with values: [thetitle, thedescription]
  Mar 28, 2013 1:29:28 PM oracle.dbtools.common.jdbc.JDBCCallImpl execute
  INFO: ORA-06550: line 1, column 6:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare exit for goto if loop mod null pragma
     raise return select update while with <an identifier>
     <a double-quoted delimited-identifier> <a bind variable> <<
     close current delete fetch lock insert open rollback
     savepoint set sql execute commit forall merge pipe
  The symbol "" was ignored.
  ORA-06550: line 2, column 74:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare end exception exit for goto if loop mod
     null pragma raise return select update while with
     <an identifier> <a double-quoted delimited-id
  
  java.sql.SQLException: ORA-06550: line 1, column 6:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare exit for goto if loop mod null pragma
     raise return select update while with <an identifier>
     <a double-quoted delimited-identifier> <a bind variable> <<
     close current delete fetch lock insert open rollback
     savepoint set sql execute commit forall merge pipe
  The symbol "" was ignored.
  ORA-06550: line 2, column 74:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare end exception exit for goto if loop mod
     null pragma raise return select update while with
     <an identifier> <a double-quoted delimited-id
  
          at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
          at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
          at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
          at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:505)
          at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:223)
          at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
          at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:205)
          at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:1043)
          at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1336)
          at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3612)
          at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3713)
          at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4755)
          at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1378)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:597)
          at oracle.ucp.jdbc.proxy.StatementProxyFactory.invoke(StatementProxyFactory.java:242)
          at oracle.ucp.jdbc.proxy.PreparedStatementProxyFactory.invoke(PreparedStatementProxyFactory.java:124)
          at oracle.ucp.jdbc.proxy.CallableStatementProxyFactory.invoke(CallableStatementProxyFactory.java:101)
          at $Proxy46.execute(Unknown Source)
          at oracle.dbtools.common.jdbc.JDBCCallImpl.execute(JDBCCallImpl.java:44)
          at oracle.dbtools.rt.plsql.AnonymousBlockGenerator.generate(AnonymousBlockGenerator.java:176)
          at oracle.dbtools.rt.resource.templates.v2.ResourceTemplatesDispatcher$HttpResourceGenerator.response(ResourceTemplatesDispatcher.java:309)
          at oracle.dbtools.rt.web.RequestDispatchers.dispatch(RequestDispatchers.java:88)
          at oracle.dbtools.rt.web.HttpEndpointBase.restfulServices(HttpEndpointBase.java:412)
          at oracle.dbtools.rt.web.HttpEndpointBase.service(HttpEndpointBase.java:162)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
          at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.doFilter(ServletAdapter.java:1059)
          at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.invokeFilterChain(ServletAdapter.java:999)
          at com.sun.grizzly.http.servlet.ServletAdapter.doService(ServletAdapter.java:434)
          at oracle.dbtools.standalone.SecureServletAdapter.doService(SecureServletAdapter.java:65)
          at com.sun.grizzly.http.servlet.ServletAdapter.service(ServletAdapter.java:379)
          at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
          at com.sun.grizzly.tcp.http11.GrizzlyAdapterChain.service(GrizzlyAdapterChain.java:196)
          at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
          at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
          at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
          at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
          at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
          at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
          at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
          at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
          at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
          at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
          at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
          at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
          at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
          at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
          at java.lang.Thread.run(Thread.java:662)
  Error during evaluation of resource template: ORA-06550: line 1, column 6:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare exit for goto if loop mod null pragma
     raise return select update while with <an identifier>
     <a double-quoted delimited-identifier> <a bind variable> <<
     close current delete fetch lock insert open rollback
     savepoint set sql execute commit forall merge pipe
  The symbol "" was ignored.
  ORA-06550: line 2, column 74:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
     begin case declare end exception exit for goto if loop mod
     null pragma raise return select update while with
     <an identifier> <a double-quoted delimited-id

  Please notify.
  Concerning
  Zack

  Zack.L wrote:
  Hi Andy,.

  Sorry, I forgot to post the Source that is used by the AL1.1.4 and the AL2.0.1.

  Source

  begin
  insert into scott.json_demo values(:title,:description);
  end;
  

  It is a failure during insertion?
  Yes, he failed in the insert using AL2.0.1.

  If the above statement produces the following error message:

  The symbol "" was ignored.
  ORA-06550: line 2, column 74:
  PLS-00103: Encountered the symbol "" when expecting one of the following:
  
  begin case declare end exception exit for goto if loop mod
  null pragma raise return select update while with
   
  

  That gives me to think that a character is not printable (notice how there is anything between the quotation marks - "") worked his way in your PL/SQL Manager. Note how the error is reported to correspond to a column 74 on line 2, line 2 of the block above has 58 characters, so a pure assumption somehow, there is extra space on line 2, which confuses the PL/SQL compiler, I suggest retype PL/SQL Manager manually and see if that solves the problem.

• First fall of 12 elements, all saved data lost on a new project.

  I was working on a short project that had many video and audio clips. About 3 hours in the first project elements 12 crashed. Now, it will not open the saved data. He simply said "an unknown error has occurred during the opening of the project" Am I GROUND? What should I expect as a regular from Adobe? More importantly, is there a method to recover the project? I am a new user of Adobe Elements and video editing in general.

  Thank you

  Jordan M-

  jordanmoorman84

  Thanks for the update and glad you are moving in your project of first Elements. But...

  Remember... you use first items 12/12.1 on Windows 7 32-bit. Under this condition, first elements 12 or 12.1 runs as an application 32 bit with all the limitations of a 32-bit system, namely maximum supported installed RAM = 4 GB which usually 3.2 to 3.0 GB or less available. This has major implications related to the chance for the greater realization of a project. First 12 elements is a 64-bit application in Windows ONLY when it is run on Windows 7, 8 or 8.1 64-bit. Under this condition, first 12 elements can take advantage of the 64-bit like application resources for these most important project at a greater frequency of success.

  Initially, you said that you were able to complete with success similar to the problem project projects under the existing conditions. At any time you mention no memory low message.

  The difficulty that seems to work for you involves virtual memory not physical memory (RAM). Virtual memory is disk space allocated for purposes of memory.  In view of recent developments, it would seem that the real difficulty for you is to install your first items 12/12.1 on Windows 7 64 bit with about 8 GB installed RAM. I'll go in a further analysis of virtual and physical memory and the/3 GB switch if necessary.

  Nice that you found a way forward in your projects (this is fine), please review and consider the foregoing.

  RTA

• Recovering data using rownum cloum

  Hello
  
  
  
  
  
  We wanted to table it contains 6216 total records
  
  I want to recover the data using rownum column between 6186 and 6126
  
  
  How can I write the query to retrieve the data?
  
  
  Thank you
  Regarding
  A Z
  
  Published by: user3308982 on March 26, 2011 14:09

  the custom of above query works. Try this, you will get the desired result, you want

   select * from (select p.*, rownum rnum from (select * from test) p) where rnum between 6189 and 6126;
  

  example of output

  SQL> run
    1* select * from (select p.*, rownum rnum from (select * from test) p) where rnum between 15 and 30
  
          ID       RNUM
  ---------- ----------
          10         15
          10         16
          10         17
          10         18
          10         19
          10         20
          10         21
          10         22
          10         23
          10         24
          10         25
  
          ID       RNUM
  ---------- ----------
          10         26
          10         27
          10         28
          10         29
          10         30
  
  16 rows selected.
  

  Reference:
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:127412348064

  Published by: rajeysh on March 26, 2011 17:09

• I bought a new iPhone SE. My iCloud account still shows my old iPhone data use. How can I erase it from my ICloud account?

  I bought a new iPhone SE. My iCloud account still shows my old iPhone data use. How can I erase it from my ICloud account?

  Do you mean that you see your old data use on the new iPhone?

  Go to settings > cellular > [scroll down to] Reset Statistics

  Otherwise, where exactly do you see this use?

• 9.2 - iOS heavy data use

  I use an iPhone 6 Plus and this morning after my iOS 9.2 update, I went to the Bank and I now have a 5 GB data use on my Verizon bill, for that hour.  I suspect that the update has launched a kind of data for Apple music, iPhotos redownload or documents in iCloud.  Everyone knows a peak usage of mobile data since the 9.2 update?

  I don't have a Wifi Assist. I have the titles recorded in offline mode in Apple Music and Spotify, so he shouldn't have listened to anything.  In addition, 5 GB is a bit excessive, even if that were the case, this is why I suspect a re-download certain content offline.

  I recently restored my iPhone backup and while syncing with iTunes, I clicked on the apps for them start the download. I do not have help the Wi - Fi enabled, all cell phones data are disabled for the App Store, iCloud drive, etc. I was always after the restoration, ~ 3GB (same number on the General section on system services) over my limit. I'm always shocked by that because I have not a data plan unlimited nor I have never downloaded any app via the cellular network, and even when I tried the app Store warned me that the app was too big to download via the cellular network. I spoke with the representative of Apple told me that it was a standard feature for all mobile devices.

  iPhone 6 128 GB iOS 9.2

• Access report data USE

  Hello

  I wonder how I can access the following data USE (I like to add these details to my test database)

  1. Station-ID
  2. Serial number
  3. Date
  4. Time
  5. Operator
  6. Execution time
  7. Number of results
  8. Result of the object to measure

  Thank you best regards &,.

  Don1.

  Hi Don1,

  I'm scared, I can lead you down the wrong path.  I tried to change the schema to save a local variable without success, so I think it would be better to use only the steps of database to save this value directly in your database.

  To do this, you must use all types of step five database.  You must open a reference to the database (for help opening the database), create a SELECT statement that selects the column that you want to insert (something like "SELECT localvar FROM testtable") to help stage open SQL statement, then use the data operation stage to perform an operation Set and was able to insert the value in the table.  Close the SQL statement by using the SQL statement step close, and then close the reference to the database by using the step to close the database.  It makes much more sense, looking at the example of database comes with TestStand.  You can find the example in \Examples\Database\WritingAndReadingTableData.seq.  This example uses the types of step all five of database.

  I hope it's useful.  If you need any clarification on what, just let me know.

• Saving data in intervals of 30 or 40 seconds with a precision of millisecond

  Hi all

  For my lab work on a rewrite project, we try to take in the analog voltage to 15 k Htz entries. We then like to save these data for a specified time, i.e. 40,00 seconds, then stop recording to another interval inter specified test, that is 20 seconds and then start again. I looked around the forum of the means to achieve this, but it seems that most of the precision of ideas discussed until about 1 second. To our laboratory, it is crucial that we have the precision of the time up to 1 ms.

  My original idea was that since DAQmx read using hardware timing (I think?) for the 15 k time Htz, it may be a good idea to schedule the following logic: Let's save 40 seconds, let's say 15 k * 40 samples and then rest for 20 seconds, so let's take the 15 k 20. samples and so on.

  The three problems that I can think of off the top of my head are:

  (1) to read DAQmx function only put data in buffer 1 by 1, then it may be difficult to always record the exact number of samples? i.e. If DAQmx removes data buffer of 1000 samples/iteration, it can be difficult to recover samples exactly 212,415,500, for example.

  (2) I don't know if LabView built in record VI that allows me to specify the number of samples, that I want to save. In addition, these 'samples' are grouped into a waveform data type. (Well, a table 1 d of waveforms as we more than 1 channel at a time)

  (3) the program shall also make timed output digital, if we save data using this mechanism of "assessment of the sample", timing logic will have to be another (?) logic separated.

  Please tell me what you think of the idea. If it is not good, it would be great if you can point me to a better approach.

  Oh, this is my first time coding in LabView, I'm open to all kinds of suggestions/comments of programming style.

  As always, thanks for your help!