define a data type (read binary)

Similar Questions

• Data type can be same base on the table source for blank column

  We have an employee as mentioned structure table.
  
  EMPNO NUMBER 4,
  ENAME VARCHAR2 (10),
  USE VARCHAR2 (9).
  MGR NUMBER 4,
  HIREDATE DATE,
  SAL NUMBER (7.2).
  NUMBER (7.2), COMM.
  DEPTNO NUMBER (2)
  
  I want to create a basic view on the length of data type of same/exact structure. So is it possible that when the view was created, we can define a data type.
  
  In fact, I need to create a view based on above structure but want get deptno and sum of the salary of emp table column, and the rest of the column will be blank.
  
  Thank you

  You can use CAST

  create or replace view vu1 as
  select cast(null as  VARCHAR2(10) ) as ENAME,
   ....
  

• read mixed type C binary file

  Hello

  I have the script program, which can produce the desired data in csv, ASCII and binary file format. Sometimes not all of the useful numbers are printed in the csv file, so I need to read data from the binary file.

  I have atttached what I have so far and also a small csv and the bin file, containing the same data.

  I read the first value of the integer (2), but the second data type is a string, and I can't read this one... I get the error at the end of the file, I guess because the type does not, or I guess I should read the data in a different way?

  According to what I see in the csv file, the structure of the binary file should be the following:

  integer, String, float, and repeated once again all the lines in the file csv...?

  Thanks for the tips!

  PS. : the site does not allow me to upload files, so here they are:

  https://DL.dropboxusercontent.com/u/8148153/read%20Binary%20File.VI

  https://DL.dropboxusercontent.com/u/8148153/init_in_water.csv

  https://DL.dropboxusercontent.com/u/8148153/init_in_water.bin

  Here is a basic example of what I mean. Oh, the whole analysis and the string. The floating-point number at the end is not decode properly. I tested on the first entry in your file binary. If you have access to the code that generates this data, you can see exactly what format the data is. Your data seems to be 22 bytes of length.

  

• Where to define new custom data types?

  Hello

  In the past (TS 3.5) I created our own range of custom type file that has been used

  to store the new data types and then referred the case to other colleagues. The file would be

  stored in the ...\Program Files\...\User area.

  My question arose because we now use the TS 4.1/4.2, which is no longer a separate

  Directories of NOR and user in \Program Files.

  Because now I want to change an existing custom data type, I find that our range of custom type has

  fallen by the way side, forgotten.

  Even though I can see the custom data definitions within the sequence of type files that use

  custom data types, which means that I can edit them locally, I intend to return to

  a range of custom type, i.e. comprehensive definition.

  What is the relationship between the definitions in a range of custom type and custom data

  definitions of type of a file of sequence?

  When a palette to update file a file of sequence?, who takes over in the event of conflicts?

  is a really necessary sequence files palette file if they are separated by using the same custom data type

  can update the other? What is good practice when defining custom types of data?

  Thank you

  Gary.

  Hey guys,.

  This is a very interesting thread, and I've got everything right, in heart, with advice given so far. I just wanted to offer some additional tips on the conflicts of kind - with more response, the initial question concerning the definition of what is priority in case of conflict.

  It is important to note that TestStand uses type names and version numbers to identify the different types. It is also important to note that when you use a definition of type of customers within a sequence, the sequence (.seq) file containing the sequence will keep a copy of the type definition. This greatly facilitates distributed sequence files. However, it also opens the door to potential conflicts type.

  TestStand allows only one type of unique name to be loaded into memory at any given time, so that it uses the number of versions of the type to try to resolve these conflicts automatically. For example, TestStand can be configured to load any type is the largest version number (note that this can be changed via the tab Preferences dialog box Options of Station).

  All this information and more are found in the following tutorials...

  Conflicts and TestStand Type Versioning

  How to make a Type of custom step?

  Thanks for your time. I hope this has been helpful!

• LONG data type in a database read-only

  I would only run this query...
  
  SELECT MAX (nrr_id) AS nrr_id, LENGTH (nrr_narrative) AS nrr_narrative_length
  Stories
  GROUP OF LENGTH (nrr_narrative)
  ORDER BY 2;
  
  The problem is, nrr_narrative is a LONG data type, so LENGTH won't work.
  
  I did the game of legs (on the web) and saw several interesting ways to get around this restriction for the long data type The problem is, they need either SysEx in a new table and redesign of the LONG like a LOB (or similar) or write a stored procedure or function that re - throws the column and returns the length. I can't do either (or one of the other more esoteric suggestions) because the table exists in a database I am not and that I don't have very few privileges.
  
  I could create a link to db on my server to the external source and make the overhaul in a table (or by using a stored procedure) on my server, but the connection is slow and even a simple select on a db link expires quite frequently.

  You can write the PL/SQL code. Something like:

  DECLARE
      TYPE nrr_id_tbl_type IS TABLE OF NUMBER
        INDEX BY PLS_INTEGER;
      v_nrr_id_tbl nrr_id_tbl_type;
      v_len NUMBER;
  BEGIN
      FOR v_rec IN (SELECT nrr_id,nrr_narrative FROM narratives) LOOP
        IF v_nrr_id_tbl.EXISTS(LENGTH(v_rec.nrr_narrative))
          THEN
            v_nrr_id_tbl(LENGTH(v_rec.nrr_narrative)) := GREATEST(
                                                                  v_nrr_id_tbl(LENGTH(v_rec.nrr_narrative)),
                                                                  v_rec.nrr_id
                                                                 );
          ELSE
            v_nrr_id_tbl(LENGTH(v_rec.nrr_narrative)) := v_rec.nrr_id;
        END IF;
      END LOOP;
      v_len := v_nrr_id_tbl.FIRST
      FOR v_i IN 1..v_nrr_id_tbl.COUNT LOOP
        DBMS_OUTPUT.PUT_LINE('LENGTH(nrr_narrative) = ' || v_len || ', MAX(nrr_id) = ' || v_nrr_id_tbl(v_len));
        v_len := v_nrr_id_tbl.NEXT(v_len);
      END LOOP;
  END;
  /
  

  SY.
  P.S. It will not work if nrr_narrative is greater than 32760, which is the maximum length of the LONG PL/SQL data type.

  Published by: Solomon Yakobson on 13 December 2011 14:52

• "Read binary file" in hex format?

  Is there a way I can set the data type of the function "Binary file reading" so he came out in Hex format?

  Front panel.  Right-click.   Display format.

• Inclomplete message while reading binary 0 if x 00 takes place

  Hello Forum members.

  All that I will meet difficulty reading a trace of a FSP13 with REAL, 32.

  I was hunting the question until, that track is incomplete after the

  first occurrence of a 0 in the binary data, so more or less data is read,

  According to the 0 position.

  I compared the REAL, 32 trace with a trace of the CSA and could locate exactly the0x00

  in the Ascii trace.0. The message regularly ends with ibsta = END, CMPL.  and also

  No "system: err? ' is reported.

  What should I do?

  -J' use libgpibapi.so Linux i686 (loading via types in python), HW is a NEITHER-PCI-card,.

  Here's the fragment, what I'm doing:

  Self.gpib_so.ibdev (self.boardid, self.pad, 0, tmout, 1, 0) # ==> EOI is used and no EOS
  
  Self.ibwrt ('REAL FORMAT, 32')
  
  Self.ibwrt ("TRACE? TRAC1')
  
  x = ""
  
  all in 1:
  
      x += self.ibrd)
  
      If self.ibsta & END:
          breaking

  Any help is apreciated, there may be something to configure on the FSP13.

  Thank you, Axel

  It turned out that the buffer string types caused the problem.
  This buffers had two members, buffer.value and buffer.raw.
  buffer. Value returns just a finished string 0. buffer. RAW returns
  all of the allocated buffer. To get the true number of receipts
  bytes, you must Access the global variable ibcntl in the gpib
  Library. Under windows, this variable is renamed to user_ibcntl.
  (found here: http://www.ni.com/white-paper/4873/en)

• Read binary file

  Hello, I would like to write and read a 2D in a binary table. I get an error in my VI and I have no idea how to solve this problem. Can someone help me?

  In addition, the file extension should be .bin or. dat.

  Thank you

  Zied

  You really need to add the size of the array.  Otherwise you will have no idea of what should be the size of your two dimension.  Then just do a simple reading with a 2D data type table.

  

• Causing problems of custom data type to deploy the shared target RT variable

  I seem to have some difficulty in using a shared variable published network created from a customized data type when it is deployed as an executable on a target of cRIO RT.  I'll start by describing why I think that this is the rub.  I created my RT VI in the LabVIEW (LV 2012) development environment and everything works fine.  This VI is quite simple, because these were quickly devolved into an exercise in debugging.  The RT VI begins by simply flashing the LED to a couple of times and then starts a loop simple acquisition to read some values out of the material using the analytical engine (while still flashing the LED of the user).  After reading the material, the values are grouped in a cluster and written in a shared variable published to the network defined by a custom control type def.  The custom control contains five floats double precision.  If it's important, the RT cRIO system hosts the shared variable in this case.

  So I have that deploy in the development environment, and everything works fine.  The LED flashes merrily along, telling me that the program runs correctly.  Running a VI host who reads the shared network has published variable gives the desired result.  Everything is good.

  Now, I want the cRIO system to run this simple program by itself at startup.  I build, set it as start VI, deploy it, and then restart the cRIO target.  The LED never flashing... the VI doesn't seem to work.  I'll spare you the major part of the work of debugging and access to the end.  I basically "diagram Disabled" various sections of the code up to the VI began to run correctly in an executable file.  I kept reducing the size of the disabled code until something has been disabled: the writing in the shared variable for the custom data type.

  So, I guess my question is this: are custom data types defined by type def would be personalized orders authorized executables to RT?  I read through the cRIO Developers Guide, my book of development in real time course of NOR and the white paper using shared Variables and I see nothing that forbids it.  I know that there are things not allowed in the executable files that are allowed in the development environment (property nodes façade, dialogue live, operating system specific calls, etc.), but no mention of the shared variable type custom data.  Any ideas as to why my VI is running in the development environment, but does not update unless I have delete the entry on the published network variable shared?

  Thank you in advance for your help!

  You must disconnect the data types of variables and then recompile. You can find it useful to keep on disk, a copy of the original lvlib.

  Don't know if this is a bug or not. It was suggested by someone in the forum that putting the ctl files in the right position (the disk? in the draft?) would allow the rtexe start; I did a quick check and it didn't work then I dropped the tests more far.

• Strange behavior when reading binary file

  I'm reading from the binary data as flattened. The file was saved as a class of labview which contained the table of waveforms and other data. When I read the file with read binary file vi with class attached to the type of data the data are correct. But when I read the as flattened data something strange happened (see attached image). The two best shows correct data and two charts below shows the partially correct data. When you write code to read the flattened data I followed the instructions on http://zone.ni.com/reference/en-XX/help/371361H-01/lvconcepts/how_labview_stores_data_in_memory/ and http://zone.ni.com/reference/en-XX/help/371361H-01/lvconcepts/flattened_data/.

  The strange is that there is gap around 1.4 s (marked in red), but the samples before and after game.

  I don't know what I'm doing wrong.

  I have LV2011.

  Demand is also attached.

  

  

  Assuming that you your decoding of binary data is correct (that is, you have the data structure of the serialized class figured out) the problem is probably that you don't the read as binary data, you read in the text using the text file... Modify the read fucntion than binary.

• Adds data to the binary file as concatenated array

  Hello

  I have a problem that can has been discussed several times, but I don't have a clear answer.

  Normally I have devices that produce 2D image tables. I have send them to collection of loop with a queue and then index in the form of a 3D Board and in the end save the binary file.

  It works very well. But I'm starting to struggle with problems of memory, when the number of these images exceeds more than that. 2000.

  So I try to enjoy the fast SSD drive and record images in bulk (eg. 300) in binary file.

  In the diagram attached, where I am simulating the camera with some files before reading. The program works well, but when I try to open the new file in the secondary schema, I see only the first 300 images (in this case).

  I read on the forum, I have to adjust the number of like -1 in reading binary file and then I can read data from the cluster of tables. It is not very good for me, because I need to work with the data with Matlab and I would like to have the same format as before (for example table 3D - 320 x 240 x 4000). Is it possible to add 3D table to the existing as concatenated file?

  I hope it makes sense :-)

  Thank you

  Honza

  • Good to simulate the creation of the Image using a table of random numbers 2D!  Always good to model the real problem (e/s files) without "complicating details" (manipulation of the camera).
  • Good use of the producer/consumer in LT_Save.  Do you know the sentinels?  You only need a single queue, the queue of data, sending to a table of data for the consumer.  When the producer quits (because the stop button is pushed), it places an empty array (you can just right click on the entry for the item and choose "Create Constant").  In the consumer, when you dequeue, test to see if you have an empty array.  If you do, stop the loop of consumption and the output queue (since you know that the producer has already stopped and you have stopped, too).
  • I'm not sure what you're trying to do in the File_Read_3D routine, but I'll tell you 'it's fake  So, let's analyze the situation.  Somehow, your two routines form a producer/consumer 'pair' - LT_Save 'product' a file of tables 3D (for most of 300 pages, unless it's the grand finale of data) and file_read_3D "consume" them and "do something", still somewhat ill-defined.  Yes you pourrait (and perhaps should) merge these two routines in a unique "Simulator".  Here's what I mean:

  

  This is taken directly from your code.  I replaced the button 'stop' queue with code of Sentinel (which I won't), and added a ' tail ', Sim file, to simulate writing these data in a file (it also use a sentinel).

  Your existing code of producer puts unique 2D arrays in the queue of data.  This routine their fate and "builds" up to 300 of them at a time before 'doing something with them', in your code, writing to a file, here, this simulation by writing to a queue of 3D Sim file.  Let's look at the first 'easy' case, where we get all of the 300 items.  The loop For ends, turning a 3D Board composed of 300 paintings 2D, we simply enqueue in our Sim file, our simulated.  You may notice that there is an empty array? function (which, in this case, is never true, always False) whose value is reversed (to be always true) and connected to a conditional indexation Tunnel Terminal.  The reason for this strange logic will become clear in the next paragraph.

  Now consider what happens when you press the button stop then your left (not shown) producer.  As we use sentries, he places an empty 2D array.  Well, we dequeue it and detect it with the 'Empty table?' feature, which allows us to do three things: stop at the beginning of the loop, stop adding the empty table at the exit Tunnel of indexing using the conditional Terminal (empty array = True, Negate changes to False, then the empty table is not added to the range) , and it also cause all loop to exit.  What happens when get out us the whole loop?  Well, we're done with the queue of data, to set free us.  We know also that we queued last 'good' data in the queue of the Sim queue, so create us a Sentinel (empty 3D table) and queue for the file to-be-developed Sim consumer loop.

  Now, here is where you come from it.  Write this final consumer loop.  Should be pretty simple - you Dequeue, and if you don't have a table empty 3D, you do the following:

  • Your table consists of Images 2D N (up to 300).  In a single loop, extract you each image and do what you want to do with it (view, save to file, etc.).  Note that if you write a sub - VI, called "process an Image" which takes a 2D array and done something with it, you will be "declutter" your code by "in order to hide the details.
  • If you don't have you had an empty array, you simply exit the while loop and release the queue of the Sim file.

  OK, now translate this file.  You're offshore for a good start by writing your file with the size of the table headers, which means that if you read a file into a 3D chart, you will have a 3D Board (as you did in the consumer of the Sim file) and can perform the same treatment as above.  All you have to worry is the Sentinel - how do you know when you have reached the end of the file?  I'm sure you can understand this, if you do not already know...

  Bob Schor

  PS - you should know that the code snippet I posted is not 'properly' born both everything.  I pasted in fact about 6 versions here, as I continued to find errors that I wrote the description of yourself (like forgetting the function 'No' in the conditional terminal).  This illustrates the virtue of written Documentation-"slow you down", did you examine your code, and say you "Oops, I forgot to...» »

• You want to read binary files in some parts of the 500th row in the 5 000th row.

  I have files of 200 MB of 1000561 lines binary data and 32 columns when I read the file and sequentially conspire full memory of the generated message.

  Now, I want to read the file in pieces as the 500th row 5,000th row with all the columns and it draw in the graph.

  I tried to develop logic using functions file advanced set file position and the binary file reading block, but still not get the sollution.

  Please, help me to solve this problem.

  Thanks in advance...

  Hi ospl,.

  To read a specific part of the binary, I suggest to set the file position where you want to read the data and specify how many blocks you must read binary file for reading binary file.VI

  for example, if you write table 2D binary file, and then mention you data type this 2D chart and make your account (5000-500). Then together, you produce position. If you have 32 DBL data type and column then it is 256 to the second row and 256 * 500 for line 501th. Use this number as input into your position.vi file get.

  I hope you find you way through this.

• Help with downloading blob data type

  Can Hi all, someone please help me with the download of blob data types. I created the following table, as well as triggers and seq. However, when I try to run the program I get the following error.

  "Error (2.5): PLS 00049: bad connection variable ' NEW. '. ' ID'.

  Create table proc_doc (
  pd_id number,
  pd_doc blob);
  
  
  CREATE SEQUENCE proc_doc_seq;
  CREATE or replace TRIGGER proc_doc_trig BEFORE INSERT ON proc_doc FOR EACH ROW
  BEGIN
      :NEW.id := proc_doc_seq.NEXTVAL;
  END;
  /
  
  
  
  

  Images will usually be on the client. If the customer needs to read binary image data and argue that the database for storage.

  Like Mike suggested, the customer can be a web browser, do a upload of file from the database. This example uses Apache and MOD_PLSQL in the web layer. See understanding mod_plsql for more information on creating a loading table in the database, and how the HTML form should look similar to the web client to submit a file upload.

  Oracle Apex simplifies it for you.

  Another method is to use DBMS_LOB - client creates a BLOB in the database, bed a piece of the image file, and then write add this piece to the BLOB.

  The customer can also support LOBs via a local client interface or o - o class. This generally allows to create a bind variable LOB and argue that the database.

  And no, you cannot use SQL * more as a client to download files. If the command line is preference, use SQL * Loader to load and submit the files of the database.

• data type for astromical algorithms

  Hello everyone.

  IM using Oracle 12 g of data.

  I have to face a new application where I have to develop a large number of astronomical algorithms, normally calculated them on the speed of the planets, astronomical positions and so forth.

  These algorithms usually have a large number of decimal place, between 10 and 20.

  So, Im trying to find the best types of data, because the accuracy is a must. And these are my doubts...

  Read the tutorial of Oracle it say that the number data type contains all the other subclass of numbers. For example, as I understand it, the integer data type is only one type of data number with some restrictions.

  My question is:

  If I declare a variable as number, this variable will have the same accuracy as a variable declared as binary_double? For example

  Declare

  x number; -Without defining the decimal scale in this way, it can accept the range possible decimal

  x BINARY_DOUBLE:-that class will have the same accuracy as the number of x?

  What is the best way to declare these vars?  by order of accuracy, storage and speed is not so important in this application.

  Regards to all the world and thanks in advance.

  Use the NUMBER unless you have a specific reason NOT to use it.

  See the built-in data types in the doc of the SQL language

  http://docs.Oracle.com/CD/B28359_01/server.111/b28286/sql_elements001.htm#i54330

  2

  NUMBER[ (p [, s]) ]

  Number having precision p and scale s . Precision p may vary from 1 to 38. Wide s can vary from-84 to 127. Precision and scale are in decimal digits. A NUMBER value requires 1 to 22 bytes.

• [nQSError: 43119]:-the data type: 25 is not supported columns error for data type "uniqueidentifier".

  Hi all

  
  

  I am facing a problem while creating a BI reports to the SQL Server 2008 Database.

  Access to columns of data type "uniqueidentifier" I get error [nQSError: 43119]:-the data type: 25 is not supported.

  • OBIEE 11.1.1.6.11 on Linux x86_64 servers is hosted by the Services of Oracle Cloud.
  • Using last "ODBC driver for SQL server 11" for connection (also tried driver "DataDirect SQL Server 6.0 native Wire Protocol").
  • No "Uniqueidentifier" data type columns display correctly in reports.
  • I tried to change the columns of data type "Uniqueidentifier" to char (36), VARCHAR (36), VARCHAR (40), types of binary data (16) in the physical layer on various suggestions but error still there.

  Same columns questioned the SQL Developer (using third-party jTDS JDBC driver "jtds - 1.2.7 - dist") I am able to see these "uniqueidentifier" data columns. record sample:-"CB350576-FCD8-DE11-B111-002219598619".

  
  

  Please advice if this is a bug or I'm missing some property of SQL server database settings.

  
  

  Thanks in advance.
  

  Yes Srini,

  This type of column becomes UNKNOWN when they are imported into SPR but its strange after changing to VARCHAR (36), we can use it for joining tables without any problem.

  Only issue I'm facing now is the limitation to use in queries like calculate the total number of incidents (in my case incidentid is the primary key).

  But I've found a workaround. I am formulating a measure in MDB layer to get the number of total incidents as {CASE WHEN is NULL then 0 otherwise 1 END}.  the aggregation is defined on the sum and I get incident count works correctly.

  Thanks for your help.