Question of SNMP Variables

Similar Questions

• Question about local variable in LabVIEW

  I am a new bie to LabVIEW.

  I have a question about local variable in LabView.

  I tried to stop a loop by the local variable, but the value of the loop for counter is different with my hope.

  I think that the loop to stop at 6, but he stopped at 7.

  Could someone help me?

  This looks exactly like a race condition.  You have know control if the control terminal is first in reading or the local variable is written to the first.

  Try to run your code to highlight execution.

  In your code, what usually happens is that order is read and the value is false.  Then the other code will run allowing the value to write to the local variable.  Let's say that in a particular loop iteration, we get the True value.  But control of the final value has already been read as false, then the loop runs again.  The next iteration of the Terminal is read and then he sees the true, will force to stop no matter what happens in the rest of the loop the loop.

  So, why do you use a local variable instead of sending just the wire to the terminal stop?

• Question PLSQL with variable compound column names

  Hello gentlemen,
  

  
  

  I'm new to PLSQL and I would like to display some values of columns, which are listed in the defined variable in dbms.output. I created under code, which I think it could work, but I guess that it is far from correct.

  
  

  DECLARE
v_TEMP_QUERY VARCHAR2 (1000 BYTE);
v_TEMP_VALUE VARCHAR2 (1000 BYTE) := 'FILTER_01, FILTER_02';

BEGIN  
FOR v_TEMP_LOOP IN
(v_TEMP_QUERY := 'SELECT DISTINCT ' || v_TEMP_VALUE || ' FROM CW_PAGE_COMPONENT_TEMPL WHERE COMPONENT_TEMPL_ID = 10000034642';
EXECUTE IMMEDIATE v_TEMP_QUERY; )
LOOP
DBMS_OUTPUT.PUT_LINE (v_TEMP_LOOP.v_TEMP_VALUE);
END LOOP;
END;

  
  

  Thanks in advance for your help and advice on this issue and sincerely,

  Sebastian

  OK, first of all, you're confused concepts here.

  cursor loop FOR waiting for a slider must be provided, and yet you offer an assignment statement and a command immediately execute for it.  Syntax is not valid.

  Secondly, you force the way of the use of dynamic SQL, which is generally bad practice.  This use of the SQL is rarely necessary, because it often indicates that functional requirements, database design, or design/code enforcement has not examined properly... the first question is "why don't you know the names of the columns to select.  With dynamic columns in your query, you need some kind of dynamic code to manage the results of the query, you will not be able to reference the columns directly by name.

  Thirdly, the DBMS_OUTPUT package doesn't make "blank".  This may sound pedantic, but it's a common mistake that people make.  There is no fill data dbms_output buffer.  It relies on call code/interface to read the contents of the output buffer and display it in fact (for example, in SQL * more you use SQL * Plus the command "set serveroutput we ' to achieve)

  In general, in a well designed where application you know your columns you would only make...

  Start
  I'm in (select distinct filter_01, filter_02 from vw_page_component_templ where component_templ_id = 10000034642)
  loop
  dbms_output.put_line (i.filter_01 | ',' | i.filter_o2);
  end loop;
  end;

  If the columns are dynamic, then you have three options:

  (1) create a ref and pass cursor who back, extracting the content for example

  sys_refcursor getRc function returns (in numbers, in colnames templ_id varchar2) is
  RC sys_refcursor;
  Start
  Open rc for ' select distinct ' | colnames |' from vw_page_component_templ where component_teml_id =: 1' using templ_id;
  return rc;
  end;

  In SQL * more:

  var r refcursor; -It creates a variable in SQL * Plus ref cursor type
  Start
  : r: = getRc (10000034642, ' filter_01, filter_02');
  end;
  /
  print r;      -It's SQL * command to retrieve the cursor open and display the results

  (2) create an object and collection of the right structure to receive the results and use execute immediate to select IN this structure.

  (I will not show in this way, because it is absolute rubbish, and if you know the columns that you want to create the object and the collection, then you should not use dynamic SQL in the first place)

  (3) use the DBMS_SQL package to run the query and retrieve the data from the column in position rather than example:

  create or replace procedure run_query (p_sql IN VARCHAR2) is
  v_v_val varchar2 (4000);
  number of v_n_val;
  date of v_d_val;
  number of v_ret;
  c number;
  number d;
  whole col_cnt;
  Boolean f;

  
  rec_tab dbms_sql.desc_tab;
  number of col_num;
  v_rowcount number: = 0;
  Start
  -create a slider
  c: = dbms_sql.open_cursor;
  -analyze the SQL statement in the cursor
  DBMS_SQL. Parse (c, p_sql, dbms_sql.native);
  -run the cursor
  d: = dbms_sql.execute (c);
  --
  -Describe the columns that are returned by the SQL statement
  DBMS_SQL. DESCRIBE_COLUMNS (c, col_cnt, rec_tab);
  --
  -Local variables Bind to return to the different columns according to their types
   
  dbms_output.put_line (' number of columns in the query: ' | col_cnt);
  1.col_cnt j
  loop
  case rec_tab (j) .col_type
  When 1 then dbms_sql.define_column (c, j, v_v_val, 2000); -Varchar2
  When 2 then dbms_sql.define_column (c, j, v_n_val);      -Number
  12. When can dbms_sql.define_column (c, j, v_d_val);     -Date
  on the other
  DBMS_SQL.define_column (c, j, v_v_val, 2000);  -Any other type of return as varchar2
  end case;
  end loop;
  --
  -Display columns are returned...
  dbms_output.put_line ('- Columns-');
  1.col_cnt j
  loop
  dbms_output.put_line (rec_tab (j) .col_name |') -' || case rec_tab (j) .col_type when 1 then 'VARCHAR2 '.
  When 2 then 'NUMBER '.
  When 12 can "DATE".
  "Otherwise, 'Other' end);
  end loop;
  dbms_output.put_line('---');
  --
  -This part generates the DATA
  loop
  -Retrieves a row of data using the cursor
  v_ret: = dbms_sql.fetch_rows (c);
  -Output when no more line
  When the output v_ret = 0;
  v_rowcount: = v_rowcount + 1;
  dbms_output.put_line (' line: ' | v_rowcount);
  dbms_output.put_line('---');
  -Extract the value of each column of the row
  1.col_cnt j
  loop
  -Fetch each column to the correct data type according to the description of the column
  case rec_tab (j) .col_type
  When 1 then dbms_sql.column_value (c, j, v_v_val);
  dbms_output.put_line (rec_tab (j) .col_name |': ' | v_v_val);
  When 2 then dbms_sql.column_value (c, j, v_n_val);
  dbms_output.put_line (rec_tab (j) .col_name |': ' | v_n_val);
  12. When can dbms_sql.column_value (c, j, v_d_val);
  dbms_output.put_line (rec_tab (j) .col_name |': ' | to_char (v_d_val,' DD/MM/YYYY HH24:MI:SS'));))
  on the other
  DBMS_SQL.column_value (c, j, v_v_val);
  dbms_output.put_line (rec_tab (j) .col_name |': ' | v_v_val);
  end case;
  end loop;
  dbms_output.put_line('---');
  end loop;
  --
  -Close the cursor, now we're done with it
  DBMS_SQL.close_cursor (c);
  END;
  /

  SQL > run_query exec ('select ename, empno, sal, deptno from emp where deptno = 10');
  Number of columns in the query: 4
  -Columns-
  EMPNO - NUMBER
  ENAME - VARCHAR2
  DEPTNO - NUMBER
  SAL - NUMBER
  -------------
  Line: 1
  --------------
  EMPNO: 7782
  ENAME: CLARK
  DEPTNO: 10
  SAL: 2450
  --------------
  Row: 2
  --------------
  EMPNO: 7839
  ENAME: KING
  DEPTNO: 10
  SAL: 5000
  --------------
  Row: 3
  --------------
  EMPNO: 7934
  ENAME: MILLER
  DEPTNO: 10
  SAL: 1300
  --------------

  PL/SQL procedure successfully completed.

  As you can see with this method, you can extract the column details, including the name and data etc. types and then extract each line and extract the data from the column position.

  Of course, this is quite complex, so it would be a last resort.

• Another question on local Variables and their use.

  I have read many many posts on forums how we avoid the use of locals at all costs because they go against the stream of LV paradigm however I tried to find a way to replace them in my programs and do not have.

  Basic explanation:

  I use a state machine to browse specific validation test steps and test of electronic equipment of base. (Panels, timers, relays moduals fuses) Many of these facilities contain LED indicator. In the tests, I took photos of the products and then used the Boolean flags to replicate the LED on the PC so that the test operators can check to make sure the equpiment LED turns on as needed. My problem is that many products contain 20 + LED and have no order to how they are turned on. Because of this that I eventually do a boolean for each LED indicator, put all the indicators in a structure of disabled, then using local Variables at each step to display on the FP LED should now be on. It's often a lot of locals throughout the program.

  I tried to make a very basic sample of VI to try to show what is a normal procedure. How can I reduce the amount of local Variables without increasing the complexity of my VI?

  If the LED change of State within the meaning of the criterion - within the case statement - you need a parallel loop.

  I did a heap of your LED and does an architecture of producer/consumer of your case, 'Test 2' attached.

  Edit: In my table, on the bottom line, the text should read "your 6 LEDS are now a Cluster" rather than "your 6 are LED not a Cluster."

• Please help - question of custom Variable format

  I am trying to create a custom variable that displays my custom titrechapitre text paragraph tag in the header of my master page.

  The definition of my variable is < $paratext [titrechapitre] > (even if I tried 72 other variations with no better luck)

  My variable name is titrechapitre.

  When I insert this variable in the header, what it shows is: $paratext

  Can someone tell me what I am doing wrong? CAN I create a variable for a specific, correct paragraph tag text? (I know there is a variable title chapter integrated, but I have dozens of FM files that use this tag to custom paragraph and I prefer not having to change all the). Built-in operating variables, it seems that I'm this set incorrectly.

  Thank you in advance!

  Diane

  Hi Diane: You want to redefine one of the variables M/F running in this situation. If the tag of paragraph titrechapitre, if you redefine the first variable running H/F (so running H/F 1, but you can use one of the 18), it would look like this on the Master Page and will display the text of the paragraph containing the titrechapitre tag in the head of the race on the Pages of body.

  

• Question about the variable with name "

  This work is

  
  

  1. 1 package test as I said the global variable

  CREATE OR REPLACE PACKAGE test

  'TeStConsT' CONSTANT BOOLEAN: = TRUE;

  END test;

  1. 2. package sepcification

  CREATE or REPLACE PACKAGE test2 IS

  FUNCTION m)

  x in VARCHAR2) RETURN NUMBER;

  END test2;

  1. 3. package body

  CREATE OR REPLACE PACKAGE BODY test2

  FUNCTION m (x IN VARCHAR2) RETURN NUMBER IS

  b_ BOOLEAN;

  BEGIN

  b_: = TEST.testconst; return 1; -It works even if I used lower case no reason?

  END m;

  END test2;

  But it does not work

  declare

  "TeStConsT" CONSTANT BOOLEAN := TRUE ;

  Start

  if (TeStConsT) then

  dbms_output.put_line ('true');

  on the other

  dbms_output.put_line ('false');

  end if ;

  end ;

  Any thoughts why it worked on the first example. Help, please.

  See you soon,.

  Dark

  SQL language reference

  Nonquoted identifiers are not case sensitive. Oracle interprets them as letters.

  Quoted identifiers are case sensitive.

  By enclosing the names in quotes, you can give the following names to different objects in the same namespace:

  'employees '.

  'Employees '.

  'EMPLOYEES '.

  Note that Oracle interprets the following names the same, so they cannot be used for different objects in the same namespace:

  employees

  EMPLOYEES

  'EMPLOYEES '.

• Question about the Variables

  It is probably a fairly simple question, but I've never seen any documentation on this subject, so I'm not sure of the answer.

  Let's say I have the following code:

  var myLoader:URLLoader;

  function someFunction() {}

  myLoader = new URLLoader();

  myLoader.addEventListener (Event.COMPLETE, onComplete);

  myLoader.load (new URLRequest ("something"));

  function onComplete(e:Event):void {}

  Little Code.

  }

  }

  function someOtherFunction() {}

  myLoader = new URLLoader();

  myLoader.addEventListener (Event.COMPLETE, onComplete);

  myLoader.load (new URLRequest ("somethingElse"));

  function onComplete(e:Event):void {}

  Little Code.

  }

  }

  My question is, would it be possible for these two URLLoaders to interfere with each other, for example if they were executed at the same time - even if they are confined to different functions? Thanks for the help.

  they do not mingle, but the only thing that would be the load would be the last myLoader.load () that is running.

  If you wanted both to load, you need to use two different Chargers.

• Question in presentation Variable

  Hello world
  
  I created a variable for the week and the year and I'm trying to merge them to apply as a filter.
  
  To do this, I have converted the week num in char type. The week so not 1, 2, 3.12, 13 will be displayed as 01,02, 03... 12, 13.
  so I can add concatenate them with year and together there filter for a report.
  
  Reason for all this is. I need to display the results to a report based on the selection of values prompt like
  
  of the year of the week for the week year
  2010 50 2011 05
  
  Fact table and calendar are joined by the date fields.
  
  When the prompt values are selected and applied to the variable of presentation rather than spend '05' it's just by the way of "5". How to get this done. Are also tell me the work around to filter with cookers.
  
  I hope that I am clear,
  
  Thanks in advance
  
  Concerning
  Sandeep

  Hello

  I tried in my environment and syntax '2011' | right ("0" |) Cast (50 as CHARACTER (2)), 2) works very well.

  You can try with the integer data type:

  Cast ((2011*100+PRESENTATION_VARIABLE) as char (6)).

  Kind regards
  Gianluca

• security question about session variables

  Is it possible for a user to have access to modify session variables that are stored on their computer?  Like lets say I stored a session variable on the computer of someone who was < cfset session.number = 100 >, they would be able to change this session variable to be a different number?

  Thank you

  Ben

  Uh, no.

  Because the session variable is NOT stored on the client system.  It is stored on the server.

  What is sent to the client is a token that is sent with each request which allows the server to know what requests belong with what session data.

  By default, this token is a set of cookies called CFID and CFTOKEN but can alternatively configure ColdFusion to use a different cookie called JSESSIONID.  The latter has the advantage of being a memory cookie that is ignored when the browser closes automatically and being common to JRUN JSP sessions if ever, we need coordination with such a system.

  There are known risks if someone guesses any token existing and currently available on the server they can divert from this session.  It's a little more risky if one chooses to use get (URL alias) variables for cookies rather than chips.  But few bother with this option, these days.

• Question of client Variable size limit

  It seems we had a problem with a 4K limit on the size of a variable of the client when it is stored in the registry. You can create the variable size larger than 4 KB, but if you read their return to their party (their natures in the)
  Register if search you with regedit, but CF is as them is not there). I have not done extensive tests.
  but this scenario is what we had:
  Page 1: Set some variables client, make a tag cfheader with the location of the Page 2 parm and a redirection of the browser (302)
  Page 2: cfdump the scope of the customer.
  
  When you have all variables client < 4096 characters, all right. If one or more clients
  variables > = 4096 characters, none of the variables defined on Page 1 are indicated in the cfdump. Using regedit,
  client variables exist with their appropriate content.
  
  I couldn't find anything in the knowledge base or forums talked about a size limit during storage
  the variable of client in the registry, so that I am consider cela a bug. Anyone else run into this?

  Quote:
  Of course, makes one wonder why it's the default selection for the storage of customer

  Yes, it is not.

• Update of address of the card "shared Variable.

  Hello Experts!

  I have a question about shared variables:

  Now I create a variable Shared (81O_G01) in the library, and it is related to:

  My Computer\SVCREATION.lvlib\Modbus1\410611

  Question is: How can I change this address SV (410611) when tha variable has already been opened?  is this possible?

  Thanks in advance!

  Anibal

  Hey Anibaldos,

  Looks like you're trying basically change the binding of a /A1 to /A2 variables at run time. I think that there are a few options for this:

  (1) in LabVIEW DSC, you can access a hosted variable and change the link address by using a property node. If you run the server modbus on a windows machine, this is the best option. Otherwise, I'm guessing you don't have a DSC. If this is the case you can always edit links by editing the library manually, but it seems that this will not help you.

  (2) it may be possible to open a variable connection shared using pallets (Data Communication > shared Variable) to this specific address, to which cases you have no need to use the shared variable. You can simply open a connection to two addresses different modbus and read one or the other as needed.

  (3) if #2 does not work, then I think you can still use datasocket API to perform such an operation. There is a bit of research you need to do to use it (for example, URL editing and UI thread problems), but it does not work. In my opinion, this is the approach taken by this document: https://decibel.ni.com/content/docs/DOC-13508 (I know from experience, you have to dig a little to find the screw, but they are there).

  (4) you can use the Ni Labs library: http://ni.com/labs

• How to determine if the variable exists?

  I need to find a way to determine if a variable exists.  Because if I don't and evaluate a variable that does not exist, I get error.  This is why I need to do this.  I need to print only the failures in the sequence and the problem is that I can print only the failures that causes failure of the sequence.

  I have reduced that there is a Boolean status in the list of TS results. StepCausedSequenceFailure.  The question is this variable exists only when the step caused sequence failure checkbox is checked, otherwise this variable is not in the results.  Thanks for help.

  Use PropertyExists ("Locals.ResultList [x]. TS. "" "StepCausedSequenceFailure"), where "x" is the index of the step that interests you as a precondition to any approach that will access this value. "

  I hope this helps.

  -Jack

• Update of the variables of the container

  Hello

  in 4.1.0 TestStand I noticed that, when I change a container type by adding new elements that the variables of this type automatically receive new items, but without their default values (I use it as a replacement for constant values that TestStand does not). Instead, the new elements are set to 0 (they are all numbers).

  Following questions:

  • Are variables inside the sequence of files automatically updated when loading the sequence file? or only the sequence currently in memory files when the type is changed?
  • Is that the behavior of use 0 as a default value instead of the default value in the definition of type of design or a bug?

  and a request: I think it would be good to have constants to TestStand, that is, definitions of the same type in a TypePalette-INI-file, which can be used without an instance of a variable.

  Concerning

  Peter

  Hello

  I spoke to a colleague and I think his Merry is very good (see the attachment).

  Concerning

  Rüdiger

• sons are better than local variables?

  Hello

  I built a vi that eventually became huge with lots of sequence and case. Local variables of course reduces a lot of threads, but at the same time consumes memory. So those who are better? son of current throughout the vi or local variables?

  Concerning

  Simo

  The sons are better.

  DataFlow vs Local Variables

  variables local vs DataFlow

  Another question on local Variables and their use

  Why some people say that local Variables are bad

• How can I configure the variables shared between executables created in sepparate projects

  Hello

  I have several projects sepparate with their own respective executable files and I would like to be able to these executables to all share the same variable (one program control the value of the variable, while others read her).

  I got this configuration to work on my home computer (being able to access the variable Manager, etc.), but I need to deploy these executables on different computers that do not have the labview development program. What should I do so that I am able to put these executables on any computer (I guess I have to configure a path to the shared variable which is always in the same folder, etc.)

  Thank you

  Vlad

  Hi Vlad,

  I think that this article may answer some of your questions about the variables shared in deployed applications.

  http://zone.NI.com/DevZone/CDA/tut/p/ID/9900

  Looks like you already have your executables built, but this article may answer some questions about their deployment to other machines.

  http://zone.NI.com/DevZone/CDA/tut/p/ID/3303