For Loop in OSB(ALSB)

I have a variable in alsb:
$destinations = <destinations>
<destination>
     <DESCRIPTION>
     URL1
     </DESCRIPTION>
</destination>
<destination>
     <DESCRIPTION>
     URL2
     </DESCRIPTION>
</destination>
</destinations>
I have for each loop in ALSB which loops around this variable for each <destination> in <destinations>.
The problem is, when it is looping, I want to send the corresponding <description>-URL by addressing it as $destinations/destination\[$indexArg\]. It is returning all the <destination> nodes.
However, it is working fine when I use a hardcoded number instead of the variable index.
For Eg:
$destinations/destination[1] is returning the first node (as expected)
<destination>
     <DESCRIPTION>
     URL1
     </DESCRIPTION>
</destination>
But, when I use $destinations/destination\[$indexArg\] all the destination nodes are getting returned.
I understand I am missing something. Any help will be appreciated.
Thanks in advance,
Chandan.
Edited by: user10604890 on May 20, 2009 11:31 PM
Edited by: user10604890 on May 21, 2009 12:10 PM
Edited by: user10604890 on May 21, 2009 12:11 PM

I was asking about the dynamic selection of the node from a variable.
in the $destinations variable to select a particular node with a number.
Eg: $destinations/destination\[$index\]
It works fine if I say, $destinations/destination[1] and selects only the first node.
When I assign a index value there, it gives every destination variable in destinations.
For Each is not what the question is about.

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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    Excuse me if it looks incorrect, but I'm new to FPGA programming, so I would have to look into the FIFO you referred to.  I used local variables because for one thing I have several different cases containing for loop in each of them, and I only want one indicator for the "i".  If I put the indicator out of any for loop, it's only gonna show the last number which is N-1.  For the other thing, it seems like property nodes are not allowed in FPGA vi.  And by doing this, I can see the i number changing from 0 to N-1 in each case, well, in FPGA vi's front panel.  But while I ran the host vi with everything, the indicator in host vi's front panel only showed the last number N-1. It may be the reason you said, it happened too fast before the indicator in host vi can catch it.
    What I want to realize is to group the data I collect in host vi, for example, when I choose multiple exposure in each mode, and the FPGA runs 1 through 20 then do it again, I want the data stored in two groups using the loop sequence number as the seperator in file name.  So it goes like 1-1, 2-1.......20-1; then 1-2, 2-2,.....20-2.

  • How do we use if statement in labview?moreover can i use if statement inside for loop?

    how do we use if statement in labview?moreover can i use if statement inside for loop?

    The if statement in LabVIEW is the Case structure. You can find that on the Structures palette right next to the For Loop. If you're still on the same subject about terminating a for loop early, then what you do is enclose your functions inside the loop with a case statment and make one of the case's empty except for one or more constants that you might have to wire. Hopefully, the attached picture will explain what I mean. Also, as I mentioned in one of your other posts, I think this technique is not as good as using a while loop. The array in the attached example is the same size no matter what and you may have to handle stripping extra or invalid elements.
    Attachments:
    For_Loop_with_Case.jpg ‏21 KB

  • Select statement in a for loop

    Hi all,
    Can a select stmt be used in the body of the for loop/ nested for loop ?
    I tries using (even if its very simple for loop) it gives the following error
    PL/SQL: ORA-00933: SQL command not properly ended...
    code is
    DECLARE
    CURSOR C1 is select 'Monday'  from dual
    union all
    select 'Tuesday' from dual
    union all
    select 'Wednesday' from dual
    union all
    select 'Thursday' from dual
    union all
    select 'Friday' from dual
    union all
    select 'Saturday' from dual
    union all
    select 'Sunday' from dual;
            type rec_info is record
            name varchar2(20),
            FNAME varchar2(20),
            LNAME varchar2(20)
            type ty_info is table of rec_info;
            info ty_info;
            type rec_abc is record
            day varchar2(3000)
            type ty_abc is table of rec_abc;
            abc ty_abc;
            Cursor C2 is
            select t.name, u.first_name, u.last_name
            from territories t, users u, territories_users tu
            where t.ID = tu.TERRITORY_ID
            and tu.USER_ID = u.ID ;
    BEGIN
    OPEN C1;
    Loop
    FETCH C1 into abc;
    EXIT when C1%notfound;
    DBMS_OUTPUT.PUT_LINE(abc);
    END LOOP;
    CLOSE C1;
    OPEN C2;
    FETCH C2 BULK COLLECT into info;
    CLOSE C2;
           for i in info.first .. info.last
           LOOP
                       for j in abc.first .. abc.last
                       LOOP
                              select --info(i).name, info(i).FNAME, info(i),LNAME,'AM' "AM/PM",
                            to_char(c.name)||' '||ct.PRIMARY_ADDRESS_CITY||','||ct.PRIMARY_ADDRESS_STATE||','||ct.PRIMARY_ADDRESS_COUNTRY
                           from
                            territories t, territories_users tu,
                            users u, calls_users cu, calls c, 
                            calls_contacts cc, contacts ct    
                            where
                            tu.TERRITORY_ID = t.id
                            and t.name = info(i).name
                            and u.first_name = info(i).FNAME
                            and u.last_name = info(i).LNAME
                          and (c.date_start between trim(next_day(sysdate,abc(j).day)) and trim(next_day(sysdate,abc(j).day)))
                            and tu.USER_ID = u.id
                            and cu.USER_ID = u.id
                            and cu.CALL_ID = c.id
                            and to_char(c.time_start,'hh24') < '12'
                            and cc.CALL_ID = c.ID
                            and cc.CONTACT_ID = ct.id
                            and rownum < 2
                     END LOOP;
         END LOOP;
    END;

    "Can a select stmt be used in the body of the for loop/ nested for loop "
    Yes.... but with an INTO part.....
    select c1 , c2 , c3 into var1 , var2 , var3 from table1
    Sim

  • If statement doesn't affect for loop

    I wrote a function within a function to control 2 Tweens.
    (the 2nd one isnt in the function, it's called)
    My problem is... is that it works for the first time.. the button is hovered over and all the other buttons show themselves and then disappear again, except the one you're over. Then I do it a 2nd time and it doesn't work. why is it only working right one time? and why isn't the if statement I put in the local function affecting the for loop? The 2nd time it takes the button you're hovering over with it and fades it out. (even though the if statement registers according to trace)
    this is the code
    import fl.transitions.Tween;
    import fl.transitions.easing.*;
    var shortInst:Array = [btn1, btn2, btn3, exit];
    var objTween:Tween;
    function mouseOff(e:Event):void {
         if (e.currentTarget.alpha !== 0) {
              objTween = new Tween(e.currentTarget, "alpha", None.easeOut, 1, 0, 0.25, true);
    var eTimer:Timer = new Timer(3000, 1); //timer that only runs once (in ms)
    function navFX(e:Event):void {
         for (var i:Number = 0; i < shortInst.length; i++) {
              objTween = new Tween(shortInst[i], "alpha", None.easeOut, 0, 1, 0.25, true);
              eTimer.addEventListener(TimerEvent.TIMER, local);
              eTimer.start();
              function local(t:TimerEvent):void {
                   trace("e.target in local func: " + e.target);
                   for (var i:Number = 0; i < shortInst.length; i++) {
                        if (shortInst[i] !== e.target) {
                        shortInst[i].dispatchEvent(new Event(MouseEvent.MOUSE_OUT));

    is this what you want?
    import fl.transitions.Tween;
    import fl.transitions.easing.*;
    var shortInst:Array = [btn1,btn2,btn3,exit];
    var objTween:Tween;
    function mouseOff(e:Event):void
    if (e.currentTarget.alpha !== 0)
      objTween = new Tween(e.currentTarget,"alpha",None.easeOut,1,0,0.25,true);
    function navFX(e:Event):void
    var eTimer:Timer = new Timer(3000,1); // <- moved that line here
    for (var i:Number = 0; i < shortInst.length; i++)
      objTween = new Tween(shortInst[i],"alpha",None.easeOut,0,1,0.25,true);
    eTimer.addEventListener(TimerEvent.TIMER, local);
    eTimer.start();
    function local(t:TimerEvent):void
      trace("e.target in local func: " + e.target);
      for (var i:Number = 0; i < shortInst.length; i++)
       if (shortInst[i] !== e.target)
        shortInst[i].dispatchEvent(new Event(MouseEvent.MOUSE_OUT));
    for (var i:Number = 0; i < shortInst.length; i++)
    shortInst[i].alpha = 0;
    shortInst[i].addEventListener(MouseEvent.MOUSE_OVER, navFX);
    shortInst[i].addEventListener(MouseEvent.MOUSE_OUT, mouseOff);

  • Help with Mathscipt and for loop

    I have a code in Mathscript/matlab and I need to output the array out. One option is my first code,the other option is using a for loop, but I am only getting the last ouput out. I need to get the whole output out.
    Any help.
    Thanks
    Solved!
    Go to Solution.
    Attachments:
    Help with Mathscript_for loop.vi ‏115 KB
    Help with Mathscript_for loop2.vi ‏84 KB

    Here's how it should look like.
    Message Edited by altenbach on 10-30-2008 05:12 PM
    LabVIEW Champion . Do more with less code and in less time .
    Attachments:
    MathscriptInFOR.png ‏15 KB

  • Why use cursor and for loop?

    Hi All
    So in general why would we use a cursor and a for loop to do update in a stored procedure?
    Why wouldnt we just use a single update statement ?
    is there compelling reason for using a cursor and a for loop: I am reading some code from a co-worker that the business logic for the select (set need to be updated) is complex but the update logic is simple (just set a flag to (0 or 1 or 2 or 3 or 4).
    But eventually the select come down to a key (row_id) so I re-write it using just a single sql statement.
    The size of the main table is about 2.6 to 3million rows
    Any thoughts on that??
    The code below I just do a google for cursor for update example in case for something to play with
    -Thanks for all your input
    create table f (a number, b varchar2(10));
    insert into f values (5,'five');
    insert into f values (6,'six');
    insert into f values (7,'seven');
    insert into f values (8,'eight');
    insert into f values (9,'nine');
    commit;
    create or replace procedure wco as
      cursor c_f is
        select a,b from f where length(b) = 5 for update;
        v_a f.a%type;
        v_b f.b%type;
    begin
      open c_f;
      loop
        fetch c_f into v_a, v_b;
        exit when c_f%notfound;
        update f set a=v_a*v_a where current of c_f;
      end loop;
      close c_f;
    end;
    exec wco;
    select * from f;
    drop table f;
    drop procedure wco;
    Joining multiple tables
    create table numbers_en (
      id_num  number        primary key,
      txt_num varchar2(10)
    insert into numbers_en values (1, 'one'  );
    insert into numbers_en values (2, 'two'  );
    insert into numbers_en values (3, 'three');
    insert into numbers_en values (4, 'four' );
    insert into numbers_en values (5, 'five' );
    insert into numbers_en values (6, 'six'  );
    create table lang (
       id_lang   char(2) primary key,
       txt_lang  varchar2(10)
    insert into lang values ('de', 'german');
    insert into lang values ('fr', 'french');
    insert into lang values ('it', 'italian');
    create table translations (
      id_num    references numbers_en,
      id_lang   references lang,
      txt_trans varchar2(10) not null
    insert into translations values (1, 'de', 'eins'   );
    insert into translations values (1, 'fr', 'un'     );
    insert into translations values (2, 'it', 'duo'    );
    insert into translations values (3, 'de', 'drei'   );
    insert into translations values (3, 'it', 'tre'    );
    insert into translations values (4, 'it', 'quattro');
    insert into translations values (6, 'de', 'sechs'  );
    insert into translations values (6, 'fr', 'six'    );
    declare
      cursor cur is
          select id_num,
                 txt_num,
                 id_lang,
                 txt_lang,
                 txt_trans
            from numbers_en join translations using(id_num)
                       left join lang         using(id_lang)
        for update of translations.txt_trans;
      rec cur%rowtype;
    begin
      for rec in cur loop
        dbms_output.put (
          to_char (rec.id_num         , '999') || ' - ' ||
          rpad    (rec.txt_num        ,   10 ) || ' - ' ||
          rpad(nvl(rec.txt_trans, ' '),   10 ) || ' - ' ||
                   rec.id_lang                 || ' - ' ||
          rpad    (rec.txt_lang       ,   10 )
        if mod(rec.id_num,2) = 0 then
          update translations set txt_trans = upper(txt_trans)
           where current of cur;
           dbms_output.put_line(' updated');
        else
          dbms_output.new_line;
        end if;
      end loop;
    end;
    /Edited by: xwo0owx on Apr 25, 2011 11:23 AM

    Adding my sixpence...
    PL/SQL is not that different from a SQL perspective than any other SQL client language like Java or C# or C/C++. PL/SQL simply integrates the 2 languages a heck of a lot better and far more transparent than the others. But make no mistake in that PL/SQL is also a "client" language from a SQL perspective. The (internal) calls PL/SQL make to the SQL engine, are the same (driver) calls made to the SQL engine when using Java and C and the others.
    So why a cursor and loops in PL/SQL? For the same reason you have cursors and loops in all these other SQL client languages. There are the occasion that you need to pull data from the SQL engine into the local language to perform some very funky and complex processing that is not possible using the SQL language.
    The danger is using client cursor loop processing as the norm - always pulling rows into the client language and crunching it there. This is not very performant. And pretty much impossible to scale. Developers in this case views the SQL language as a mere I/O interface for reading and writing rows. As they would use the standard file I/O read() and write() interface calls.
    Nothing could be further from the truth. SQL is a very advance and sophisticated data processing language. And it will always be faster than having to pull rows to a client language and process them there. However, SQL is not Turing complete. It is not the procedural type language that most other languages we use, are. For that reason there are things that we cannot do in SQL. And that should be the only reason for using the client language, like PL/SQL or the others, to perform row crunching using a client cursor loop.

  • How to add cursor and for loop

    PROCEDURE "TEST" is
    bala number;
    ins1 number;
    ins2 number;
    BEGIN
    select sum(bal) into bala from (select sum(acp.acp_totbal) bal,acp_instruid from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and c_srm_prncplinsid=acp_instruid
    and acp_acntnum!='SG030001'
    group by acp_instruid
    union
    select sum(acp.acp_totbal) bal,acp_instruid from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and acp_acntnum!='SG030001'
    and acp_instruid=c_srm_prntinsid
    group by acp_instruid)view1;
    dbms_output.put_line(bala);
    select acp_instruid into ins1 from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and c_srm_prncplinsid=acp_instruid
    and acp_acntnum='SG030001';
    dbms_output.put_line('principal'||ins1);
    select acp_instruid into ins2 from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and acp_acntnum='SG030001'
    and acp_instruid=c_srm_prntinsid;
    dbms_output.put_line('parent'||ins2);
    update cs_acpos_bkp
    set acp_totbal=-bala
    where acp_instruid=ins2
    and acp_acntnum='SG030001';
    END;
    i have written this code,i need to use cursor and for loops to get more than one rows and update also.
    if there are more than 1 rows in cs_strmap_t,then the procedure throws an error stating that it cannot take 2 rows.
    Edited by: 850836 on Apr 7, 2011 11:43 PM

    PROCEDURE "TEST" is
    bala number;
    ins1 number;
    ins2 number;
    CURSOR cur_1 IS
    select sum(bal) bala from (select sum(acp.acp_totbal) bal,acp_instruid from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and c_srm_prncplinsid=acp_instruid
    and acp_acntnum='SG030001'
    group by acp_instruid
    union
    select sum(acp.acp_totbal) bal,acp_instruid from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and acp_acntnum='SG030001'
    and acp_instruid=c_srm_prntinsid
    group by acp_instruid)view1;
    BEGIN
    select acp_instruid into ins1 from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and c_srm_prncplinsid=acp_instruid
    and acp_acntnum='SG030001';
    dbms_output.put_line('principal'||ins1);
    select acp_instruid into ins2 from cs_strmap_t map,cs_instru_strips strip,cs_acpos_bkp acp
    where c_int_instruid=c_srm_prncplinsid
    and acp_acntnum='SG030001'
    and acp_instruid=c_srm_prntinsid;
    dbms_output.put_line('parent'||ins2);
    for var_for in cur_1
    loop
    update cs_acpos_bkp
    set acp_totbal=var_for.bala
    where acp_instruid=ins2
    and acp_acntnum='SG030001'
    and abs(acp_totbal)>abs(bala);
    dbms_output.put_line(bala);
    end loop;
    END;
    i wrote the following procedure,but the balance is not getting updated.
    Getting this errors when there are more than 1 row in cs_strmap_t table
    ORA-01422: exact fetch returns more than requested number of rows
    ORA-06512: line 22
    ORA-06512: at line 2

  • How to ignore error and continue with next value in PL/SQL FOR loop?

    hi,
    When the DROP INDEX statement fails it have to continue with the next value in FOR loop without exiting from the loop. Can anyone tell me how to do this?
    DECLARE
    CURSOR aud_cur IS
    SELECT key_col_idx FROM audience_work where aud_ref_id between 106 and 109;
    BEGIN
    FOR aud_row IN aud_cur LOOP
    EXECUTE IMMEDIATE
    'DROP INDEX ' || aud_row.key_col_idx;
    END LOOP;
    END;
    Thanks,
    Noble

    DECLARE
      CURSOR aud_cur
      IS
      SELECT key_col_idx FROM audience_work where aud_ref_id between 106 and 109;
    BEGIN
      FOR aud_row IN aud_cur LOOP
        begin
          EXECUTE IMMEDIATE 'DROP INDEX ' || aud_row.key_col_idx;
        exception
          when others then
            if sqlcode = -01418 then
              dbms_output.put_line(' index does not exist ');
            else
              dbms_output.put_line(sqlcode);
              raise;
            end if; 
        end;
      END LOOP;
    END;
    /

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