The use of cursors on the Smith abacus?

Similar Questions

• How to convert a table just to trace the Smith abacus?

  Hi Sir,

  How the read data of R and l of csv file X on the Smith abacus? I have attached the file csv and Smith abacus. Could you please kindly teach me how to convert the CSV in table at right to draw it.

  Best regards

  Victor

  Hi blueface,.

  Did you look at the example LabVIEW?

  

  Concerning

• Open lines additional drawing on the Smith chart

  If someone could tell me why the plot of smith, projected in the attached VI has drawn additional ones on a beautiful I would be eternally grateful. If you change the line style to be fair "points", you can see that there is no notes right, but once you show "points and lines" he draws.

  

  I never could solve this problem and also noticed that the smith abacus was very slow with high frequency vectors. I also had to write my own ground visibility check boxes in a ListBox etc and got sick of it. Here is the code for the trace on a XY chart if you wish. I'll probably just set a background image of an abacus of smith and does not allow users to zoom the background image is not zoom in, but it's much nicer than this picture in my view control and very simple.

  

• Selection of data with or without the use of cursors in procedures

  Hello
  
  If we are able to access the data without using a cursor as shown below in a way:
  
  
  CREATE OR REPLACE PROCEDURE tmr_exception
  IS
  x LINK_STATUS. COUNTRY_CODE % TYPE;
  
  BEGIN
  SELECT COUNTRY_CODE LINK_STATUS x;
  
  EXCEPTION
  WHEN TOO_MANY_ROWS THEN
  dbms_output.put_line (' too many lines).
  WHILE OTHERS THEN
  dbms_output.put_line ("' another problem");
  
  END tmr_exception;
  */*
  
  So what is useful in the use of explicit cursors?

  (1) SELECT... Return exactly 1 row. If you try to deal with several rows of data, you will need another construction.

  (2) A SELECT... INTO opens a cursor. He has simply done implicitly. Just like

  BEGIN
    FOR emp_cur IN (SELECT * FROM emp)
    LOOP
      <>
    END LOOP;
  END;
  

  Opens an implicit cursor.

  (3) no implicit and explicit cursors these days are generally useful when you do treatment in bulk and you want to extract the data in a local collection.

  Justin

  Published by: Justin Cave on October 9, 2010 20:17

  (4) oh and you would never have in real code catch an exception and do nothing else than calling DBMS_OUTPUT. It's a quick way to produce a totally unmanageable code.

• Using a cursor to refresh a linear ball screw in directions opposite

  Hello

  I have a screw linear ball run by a motor/controller configuration. I would use a cursor to essentially "shaking" the platform mounted on the screw forward or backward a certain distance. However, the controller has its own language to control the movement of the engine. For example, /1P10000R would move the engine sent 10000 steps in the positive direction and /1D10000R as a '1' would move the engine 10000 steps in the negative sense. My question is this: if I put the cursor in the range from-100 to 100 mm, how do I get the output to have a 'P' in the front for the numbers from 0 to 100 and a "D" frontfor numbers ranging from-100 to 0? I guess, basically, how the slider handle negatives? I have a vi to convert mm numbers to the steps.

  Thank you.

  Hi manchmal2,

  using string formatting functions?

• How to modify a statement "select into" how to use a cursor

  The following code fails with an exception too many lines. How can I modify statement Select Into the procedure to use a cursor?
  

  CREATE OR REPLACE PROCEDURE Track_Asset(
     business_date IN NUMBER DEFAULT NULL,
     missing_table_name  OUT VARCHAR2) 
  IS
     ln_business_date NUMBER;
      incorrectdateformat EXCEPTION;
  BEGIN
     IF business_date < 0 
     THEN
        RAISE incorrectdateformat;
     ELSE
        DECLARE
          ln_business_date NUMBER;
        BEGIN
           SELECT MAX(business_date) 
           INTO ln_business_date
           FROM sproof ;
        EXCEPTION
          WHEN NO_DATA_FOUND THEN
           dbms_output.put_line('NO MATCH FOUND'); 
          WHEN OTHERS THEN
          dbms_output.put_line('ORACLE ERROR :' || SQLERRM);        
        END;
        
        DECLARE
          missedfeedfnd EXCEPTION;
        BEGIN
           SELECT 'Missing Value : ' || table_name 
           INTO missing_table_name 
           FROM ( 
              SELECT UPPER(table_name) table_name 
              FROM filespec
              WHERE data_table_name IN ('TABLE1','TABLE2','TABLE3') 
              MINUS ( 
              SELECT DISTINCT UPPER(first_table_name) 
              FROM dpca
              WHERE business_date = ln_business_date 
              AND first_table_name IN ('TABLE1','TABLE2','TABLE3') 
              GROUP BY UPPER(first_table_name) UNION 
              SELECT UPPER(first_table_name) 
              FROM dpca
              WHERE business_dt_num = TO_NUMBER( SUBSTR('201111', 1, 6) || '01' )
              AND first_table_name = 'TABLE4' 
              GROUP BY UPPER(first_table_name) ));
              
              IF missing_table_name  IS NOT NULL THEN
                 dbms_output.put_line('Missing Value : '|| missing_table_name);
                 RAISE missedfeedfnd;
              ELSE
                NULL;
              END IF;
        EXCEPTION
           WHEN TOO_MANY_ROWS THEN
     DBMS_OUTPUT.PUT_LINE (' SELECT INTO statement retrieved multiple rows');
            WHEN missedfeedfnd THEN 
            raise_application_error ( - 20003, 'Missed Feed');
        END;
      END IF;
        EXCEPTION
     WHEN incorrectdatevalue 
     THEN
        raise_application_error ( - 20001, 'Incorrect/Bad Date Entered');
  END;

  OK, try this - OUT param will be filled with the table names comma-separated list:

  PROCEDURE Track_Asset(
     business_date IN NUMBER DEFAULT NULL,
     missing_table_name  OUT VARCHAR2)
  ...
  ...
  
  cursor c_table_names is
  select datatablename
  from   ( select upper(datatablename) datatablename
           from   filespec
           where  data_table_name in ('TABLE1','TABLE2','TABLE3'                                 )
          MINUS
          ( select upper(first_table_name)
            from   dpca
            where  business_dt_num = [-- this date is retrieved by getting the MAX(business_date) from sproof table]
                   and fus_data_table_name in ('TABLE1','TABLE2','TABLE3'
                                              )
            group  by
                   upper(first_table_name)
           UNION
            select upper(first_table_name)
            from   dpca
            where  business_dt_num = to_number( substr('201111',1,6) || '01' )
                   and first_table_name = 'TABLE4'
            group  by
                   upper(first_table_name)
          ));
  
  ...
  ...
  begin
     ...
     for rec in c_table_names
     loop
         missing_table_name  := missing_table_name  || rec.datatablename ||',';
     end loop;
     missing_table_name  := rtim(missing_table_name , ',');
  ...
  ...
  end ;
  

  HTH

  Published by: user130038 on December 28, 2011 08:46

• CURRENT OF refuses to use my cursor - why?

  On Oracle 11.2
  

  create or replace
  procedure example
  is
  row TABLE1%ROWTYPE;
  c1 sys_refcursor;
  BEGIN
       open c1 for
            SELECT * from TABLE1 where foo = 1 order by prim_key FOR UPDATE SKIP LOCKED;
  
       LOOP FETCH c1 INTO row;
            EXIT WHEN c1%NOTFOUND;
                 UPDATE TABLE1 SET
                      bar = 2
                 WHERE CURRENT OF c1;
       END LOOP;
       CLOSE c1;
  END;
  /

  Gives this error:

  LINE/COL ERROR
  -------- -----------------------------------------------------------------
  11/4     PL/SQL: SQL Statement ignored
  13/21    PL/SQL: ORA-00904: : invalid identifier
  13/21    PLS-00413: identifier in CURRENT OF clause is not a cursor name

  What's wrong? I guess it's something minor that I neglected.
  
  Kind regards
  David

  xerces8 wrote:

  If I use a slider like this explicit:
  Is it in terms of the order of execution as if with a

  Yes, and I see no reason to use ref cursor.

  SY.

• Using a cursor to reference in a loop for.

  I have a procedure with a few loops for nested that finds consecutive intervals with different ranges of entry into force. It looks something like this.
  

  declare
  
  cursor c1 (p1 in date, p2 in date, p3 in date) select col1,col2,col3,col4 from a_table where col1 = p1 and p2 between col2 and col3..(more conditions)..;
  cursor c2 (p1 in date, p2 in date, p3 in date) select col1,col2,col3,col4 from a_table where col1 = p1 and p2 between col2 and col3..(more conditions)..;
  cursor c3 (p1 in date, p2 in date, p3 in date) select col1,col2,col3,col4 from a_table where col1 = p1 and p2 between col2 and col3..(more conditions)..;
  
  begin
  
  for x1 in c1(start1, start2, start3)
  loop
    --print stuff from x1.col1 x1.col2 x1.col3 x1.col4
    for x2 in c2(x1.col4, x1.col2, x1.col3)
    loop
      --print stuff from x2.col1 x2.col2 x2.col3 x2.col4
      for x3 in c3(x2.col4, x2.col2, x2.col3)
      loop
        --print stuff from x3.col1 x3.col2 x3.col3 x3.col4
      end loop;
    end loop;
  end loop;
  end;
  /

  .. .cursor for loops are nice and clean, do not have to worry about pick... works perfectly.
  
  But I don't like that I have 3 sliders with the same exact query. I would rather define it only once if possible. I tried to do it with the ref Cursor, but it looks like I can't use ref Cursor in a for loop in the same way you can with a plain ol' slider.
  
  Is there a way to get what I'm doing? A single cursor definition reused within nested for loops without worrying about opening/extraction/closing anything?

  DylanB123 wrote:
  For some reason any I Although pl/sql did not support recursion. Maybe it's the ticket.
  >

  For some reason any I Although pl/sql did not support recursion. Maybe it's the ticket. PL/SQL doesn't support recursion, but it is allowed. You can do it, but you're on your own to make it work :)

• Using a cursor

  Hello
  
  How to use a cursor inside a stored procedure?... does anyone know a good site that helps me learn
  
  I make a connection where the users are created and autehnticated request
  
  I am trying to write a stored procedure that will actually get the feedback of the page and it should check the
  accountno (entry) in a table of the employer, if it exists, then it must run insert, otherwise it should be to send a number that will let me know at the end before this user is invalid and cannot register...
  
  can someone help me get started... I'm new to oracele
  
  Thank you
  Jessica

  Here is a good starting point:

  http://www.techonthenet.com/Oracle/cursors/declare.php

• Problems using trigger cursor query and post.

  Hello
  
  I use a block non-base of data/model to query records in a database block. My form has a point text 'report No.' that will be used to enter a valid number of reports. Based on the number of this report, I hit a button to search (also from the same block of data non-base) to view records that have this "report No.' in the database block. I think I need to use a cursor in a post for this request but I am not able to operate :( Help, please! I really need this point that nobody is helping me to work:(la figure)
  
  My search button - button the trigger:
  DECLARE
  NUMBER OF CHOICES;
  BEGIN
  IF: DUMMY_BLK. NWTFR IS NULL THEN
  ALERTS. STOP_ALERT ("Start Date is required", choice);
  RAISE FORM_TRIGGER_FAILURE;
  END IF;
  go_block ('T_VESSEL_BLK');
  execute_query;
  END;
  
  My post_query:
  
  DECLARE
  cursor vessel_cur is
  SELECT VES_RPTNO, VES_SENDER, VES_SENDER_MBOX, VES_INTCTRL_REF, VES_NAME, VES_VOYNO, VES_ARRDT
  SHIP
  WHERE VES_RPTNO =: DUMMY_BLK. NWTFR;
  var_mot vessel_cur % ROWTYPE;
  BEGIN
  Open vessel_cur;
  LOOP
  extract the vessel_cur in var_mot;
  EXIT WHEN vessel_cur % NOTFOUND;
  END LOOP;
  close vessel_cur;
  END;

  instead of execute_query you do now

  Why do you offer me something like that? Replacing the standard behavior that you use forms must be well thought out, because you have to manage a large number of possible problems. You can easily get the desired using the standard logic behavior:

  -Create an item number IT_COUNT in a control block, assign 'calculation mode' to 'Summary', 'Synthesis function' to 'Count' "Down block" and your DB-bloc and "just point' a null-element not contained in this block. Last series the block 'Interrogate all folders' to 'Yes' in your databaseblock. Now, in your code, you can just checkl the value of this element of count, as

  ...
  EXECUTE_QUERY;
  IF :BL_CONTROL.IT_COUNT=0 THEN
    error
  END IF;
  

• How to use a cursor to turn on or turn off the lights

  Hi guys. I'm quite familiar with Labview now, but can't seen to get my head around this problem. I have a slider that is numbered from 1 to 10. under the cursor, I inserted 10 LED lights. My sister in order to use the slider to turn off the lights and. for an example, when I set the cursor to one, at the far left light should go. When I put the cursor at 2, the first witness should go second light next to him, and the model continues. I thought to use the number of table boolean, but it doesn't seem to do the trick. could you please help me. I join the basic layout how I wanted things to be arranged

  Kind regards

  Joe

  Maybe something like that?

• Using Set cursor busy Page Veristand Custom device

  I write a device custom in Veristand and tried to use the value busy vi to disable the cursor while I do some tasks on a page of System Explorer.  It seems that the game and vi Unset busy do not work within the environment of System Explorer.  I see that NEITHER offers a way to release the cursor with the Veristand API but I don't see a way to put well filled with the API.

  Am I right in saying these cursor screws do not work the way they would in a normal application? Or is there a work around here that I'm missing?

  Hello

  The idea is good, it works for me, if you open a reference to System Explorer.lvlibystem Explorer.vi (VeriStand 2012):

  

  Best regards

• using table() cursor

  I created a table type in SQL by using the following code:

  CREATE OR REPLACE TYPE t_number AS TABLE OF number;
  

  Now I'm trying to refer to a procedure of this type parameter, as follows:

  CREATE OR REPLACE PROCEDURE invoice_maintenance (
    pt_invoice_id_in IN t_number DEFAULT t_number(0)
  )
  IS
  
  CURSOR c_data IS
       SELECT * FROM TABLE WHERE id IN table(pt_invoice_id_in);
  
  BEGIN
  ...
  

  but when I try to compile, I get ORA-00936: lack of expression.  I also tried:

  CURSOR c_data IS
       SELECT * FROM TABLE WHERE id IN table(cast(pt_invoice_id_in AS t_number));
  

  But that did not help.  What I'm doing wrong here?  I use 11.2.0.4.

  ... ID WHERE IN (SELECT COLUMN_VALUE FROM table (pt_invoice_id_in));

• Irregular data loss - function from PL/SQL returning data using Ref Cursor

  Database Version: 10.2.0.4.0 (node 2 CARS)
  
  The high-level process flow is as below:
  (1) insert records in a few tables & commit the same
  (2) call the pl/sql function to extract files (on certain conditions with joins with other tables) of the tables which are filled in step 1.
  -> It uses the ORDER BY clause to queries inline & line number 5000 records return for each call.
  Sense - if inline query is supposed to return 1,00,000 records then 20 calls to the same function. This, because the application cannot contain records beyond number.
  (3) the data returned by the ref cursor is then processed by application (Tibco BW) to generate the flat file.
  
  We are facing the problem of data loss in the file and there is no fixed model. It happens once between 200-300 calls process.
  Resolution: When the problem occurs, triggering the process and in almost every time re-outbreak of the process provides required data.
  
  Guidance on what could be the reason?
  
  * Examples of Code for the function:
  CREATE OR REPLACE FUNCTION FUNC_GET_HRCH_TOTAL_DATA)
  outinstrid in NUMBERS
  outinstrkey in NUMBERS
  rownumberstart in NUMBERS
  rownumbereend in NUMBERS
  err_code OUT VARCHAR2,
  err_msg OUT VARCHAR2)
  RETURN PACK_TYPES. HRCH_TOTAL_CURSOR
  IS
  REF_HRCH_TOTAL_CURSOR PACK_TYPES. HRCH_TOTAL_CURSOR;
  BEGIN
  
  OPEN FOR REF_HRCH_TOTAL_CURSOR
  SELECT *.
  FROM (SELECT A.HIERARCHY_KEY, B.KEY, B.VAL_KEY, A.KEY_NEW, C.ITEMID, B.VAL_TAG, B.sort_order, ROWNUM ROWNUMBER
  OF AOD_HRCH_ITEM A, AOD_HRCH_ATTR B, AOD_HRCH_ITEMS C
  WHERE A.outputid = B.outputid
  AND A.outputid = C.outputid AND A.outputkey = B.outputkey
  AND A.outputkey = C.outputkey AND A.outputid = outinstrid
  AND A.outputkey = outinstrkey AND A.ITEM_SEQ = B.ITEM_SEQ
  AND A.ITEM_SEQ = C.ITEM_SEQ AND A.HIERARCHY_LEVEL_ORDER = B.SORT_ORDER
  ORDER BY A.HIERARCHY_LEVEL_ORDER DESC)
  WHERE ROWNUMBER < rownumbereend
  AND ROWNUMBER > = rownumberstart;
  
  
  RETURN REF_HRCH_TOTAL_CURSOR;
  EXCEPTION
  WHILE OTHERS
  THEN
  err_code: = x_progress | ' - ' || SQLCODE;
  err_msg: = SUBSTR (SQLERRM, 1, 500);
  
  END FUNC_GET_HRCH_TOTAL_DATA;
  /
  
  Published by: meet_sanc on February 16, 2013 10:42

  Your SELECT statement is almost certainly incorrect

  SELECT *
    FROM ( SELECT A.HIERARCHY_KEY, B.KEY, B.VAL_KEY, A.KEY_NEW, C.ITEMID, B.VAL_TAG, B.sort_order,ROWNUM ROWNUMBER
             FROM AOD_HRCH_ITEM A, AOD_HRCH_ATTR B, AOD_HRCH_ITEMS C
            WHERE A.outputid = B.outputid
              AND A.outputid = C.outputid AND A.outputkey = B.outputkey
              AND A.outputkey = C.outputkey AND A.outputid = outinstrid
              AND A.outputkey = outinstrkey AND A.ITEM_SEQ = B.ITEM_SEQ
              AND A.ITEM_SEQ = C.ITEM_SEQ AND A.HIERARCHY_LEVEL_ORDER = B.SORT_ORDER
            ORDER BY A.HIERARCHY_LEVEL_ORDER DESC)
   WHERE ROWNUMBER < rownumbereend
     AND ROWNUMBER >= rownumberstart;
  

  Since the ORDER BY is applied after the ROWNUM is assigned in this case, your query is requested for a period of 5000 lines any arbitrariness. It would be perfectly valid for a single line to return in each of your 200 different calls or for a line to return in any of them.

  You definitely want to do something in the sense of the canonical askTom wire

  select *
    from ( select a.*, rownum rnum
             from ( YOUR_QUERY_GOES_HERE -- including the order by ) a
            where rownum <= MAX_ROWS )
   where rnum >= MIN_ROWS
  

  That said, it seems inconceivable that Tibco is unable to manage a cursor that returns more than a certain number of lines. You do a ton of work to return the data pages that are certainly not necessary. Unless you're saying that you somehow paralyzed your installation of Tibco giving him a ridiculously small amount of memory to process, something doesn't look good. A slider is just a pointer - it holds that no data - so the number of lines that you can extract a slider should have no impact on the amount of memory on the client application needs.

  As others have already pointed out, your exception handler is almost certainly do more harm than good. Return the error codes and error messages as from the OUT parameters, instead of simply allowing the exception to propagate deletes a ton of useful information (such as the mistake of the stack) and makes your process much less robust.

  Justin

• using Ref cursor

  Hi all
  
  We have a defined as Ref Cursor.
  
  CREATE or REPLACE procedure Pspdetails_proc (supplier_id in varchar2, supplier_partno in varchar2)
  as
  type rc is REF CURSOR;
  l_cursor rc;
  
  l_query varchar2 (512)
  by default ' SELECT C2. N ° supplier, C2. SupplierPartNumber, Lon1.lse_Index, Lon1.lse_String
  C2PlantSpecificPricingTab C2, Lon1 LongStringElementTab
  WHERE C2.ls_Strings = Lon1.lvId AND C2.rootId = Lon1.rootId
  AND (C2. Active = 1) AND (C2. PurgeState = 0)';
  cursor l_template is SELECT C2. N ° supplier, C2. SupplierPartNumber, Lon1.lse_Index, Lon1.lse_String
  CVXPlantSpecificPricingTab C2, Lon1 LongStringElementTab
  WHERE C2.ls_Strings = Lon1.lvId AND C2.rootId = Lon1.rootId AND (C2. Active = 1) AND (C2. PurgeState = 0);
  
  l_rec l_template % rowtype;
  
  BEGIN
  If (supplier_id isn't supplier_partno NULL AND IS NOT NULL) then
  l_query: = l_query | "AND C2. SupplierID = "' | supplier_id | " ' AND C2. SUPPLIERPARTNUMBER = "' | supplier_partno | " ' ;
  end if;
  dbms_output. Put_line (l_query);
  Open the l_cursor for l_query;
  loop
  extract the l_cursor in l_rec;
  When the output l_cursor % notfound;
  dbms_output. Put_line (l_rec.lse_String);
  end loop;
  close l_cursor;
  end;
  /
  
  What should be the approach in case I want to return the value "l_rec.lse_String" of the piece of code above OR propose a different approach.
  
  Thank you very much in advance.

  What should be the approach in case I want to return the value "l_rec.lse_String" of the coin above the cod

  You can introduce an output parameter.
  In addition you don't need all this dynamic sql: a simplified version would be

  create or replace procedure pspdetails_proc (
     supplier_id       in     varchar2,
     supplier_partno   in     varchar2,
     lse_string           out varchar2)
  as
  begin
     if supplier_id is not null and supplier_partno is not null
     then
        select max (lon1.lse_string)
          into lse_string
          from c2plantspecificpricingtab c2, longstringelementtab lon1
         where     c2.ls_strings = lon1.lvid
               and c2.rootid = lon1.rootid
               and (c2.active = 1)
               and (c2.purgestate = 0)
               and c2.supplierid = supplier_id
               and c2.supplierpartnumber = supplier_partno;
     else
        select max (lon1.lse_string)
          into lse_string
          from c2plantspecificpricingtab c2, longstringelementtab lon1
         where     c2.ls_strings = lon1.lvid
               and c2.rootid = lon1.rootid
               and c2.active = 1
               and c2.purgestate = 0;
     end if;
  end pspdetails_proc;
  /