Variable code

Hello Friends,
Need some help from you ...
I have to write a variable code in my devlopment and i m not familier with ABAP programming. It will be nice help for me if any one can help or send me an ABAP code.
Requierment is as follows.
There is one query which is showing current week date and now USEr want to see the 12 weeks before data along with current data. so he can compare with current data and 12 weeks before data.
So please let me know how to proceed and send me sample code if you can ..it will be nice help for me..
my mail id is [email protected]
Sample code is as below - This code was actully for 4 weeks comparision data ,
Calculates Interval for Current Week - 4 to Current Week
(Last Four Weeks plus Current Week as a Range)
WHEN 'ZXV_L4W'.
   IF I_STEP = 2.
    CLEAR L_S_RANGE.
    v_date1 = SY-DATUM - 28.
    v_date2 = SY-DATUM.
    CALL FUNCTION 'DATE_GET_WEEK'
     EXPORTING
      DATE = v_date1
     IMPORTING
      WEEK = v_cweek1.
    IF SY-SUBRC EQ 0.
     CALL FUNCTION 'DATE_GET_WEEK'
      EXPORTING
       DATE = v_date2
      IMPORTING
       WEEK = v_cweek2.
     IF SY-SUBRC EQ 0.
      L_S_RANGE-LOW = v_cweek1.
      L_S_RANGE-HIGH = v_cweek2.
      L_S_RANGE-SIGN = 'I'.
      L_S_RANGE-OPT = 'EQ'.
      APPEND L_S_RANGE TO E_T_RANGE.
     ENDIF.
    ENDIF.
   ENDIF.
I thanks to all of you in advance for your help
Regards

Hi,
The idea of this exit is to translate the date specified in the variable ZPRPYA into a date range (From-To).
WHEN 'ZRDDAT2'. >>when the variable is ZRDDAT2
IF i_step = 2. "after the popup
LOOP AT i_t_var_range >> an internal table INTO loc_var_range >> another internal table
WHERE vnam = 'ZPRPYA'. >> you can view the structure of the tables by double-clicking on the name. There are probably some defaulted value being saved for the variable ZPRPYA
CLEAR l_s_range. >> fields in this range will be something like, variable name, sign, operator, from value (high) and to value (low)
previous_year = loc_var_range-low(4). "3 >> assigning the first 4 chars of the FROM value to previous_year... this is usually depicted as taking the first 4 chars of eg '20060101'.
two_years_ago = previous_year - 1. "2 >> formula to find the years 2 yrs ago eg = 2004 (2006 - 2)
CONCATENATE two_years_ago '01' '01' INTO l_s_range-low. >> this will gel the value in variable two_years_ago (2004) into the FROM space eg 20040101.
CONCATENATE previous_year '12' '31' INTO l_s_range-high.
>> this will gel the value in variable previous_year (2006) into the TO space eg 20060101.
CONDENSE l_s_range-low.
CONDENSE l_s_range-high. >> to remove any spaces.
l_s_range-sign = 'I'.
l_s_range-opt = 'BT'.
APPEND l_s_range TO e_t_range. >> e_t_range will be the range used by the system to represent the variable value
EXIT.
ENDLOOP.
ENDIF.
ENDCASE.
Hope this helps,
Gimmo
Message was edited by: Gimmo
Message was edited by: Gimmo

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<title>Account Verification</title>
</head>
<body text="#000000" link="#0000FF" vlink="#0000FF"
alink="#0000FF"
leftmargin="0" topmargin="0">

 
 
<% If Not rsVerify.EOF Or Not rsVerify.BOF Then %>
<table width="605" align="center">
<tr bgcolor="#9999FF">
<td>USD Name:</td>
<td><%=(rsVerify.Fields.Item("c_last_name").Value)%>,
<%=(rsVerify.Fields.Item("c_first_name").Value)%></td>
</tr>
<tr>
<td>First
Name:</td>
<td><%=(rsVerify.Fields.Item("c_first_name").Value)%></td>
</tr>
<tr>
<td>Last Name:</td>
<td><%=(rsVerify.Fields.Item("c_last_name").Value)%></td>
</tr>
<tr>
<td>Email:</td>
<td><%=(rsVerify.Fields.Item("c_email_addr").Value)%></td>
</tr>
<tr>
<td>Location:</td>
<td><%=(rsVerify.Fields.Item("c_middle_name").Value)%></td>
</tr>
<tr>
<td colspan="2"><div
align="center">If all 4 fields above
contain
your correct information please select from the links
below. 
If your are missing any information above please contact the
help
desk
before proceeding. </div></td>
</tr>
<tr>
<td colspan="2"><hr size="1"> <table
width="400" align="center">
<tr>
<td><div align="center"><a
href="/Help_Desk/usd_stores1.asp">Open
Store / DC
Request</a></div></td>
<td><div align="center"><a
href="/Help_Desk/usd_corp1.asp">Open
Corporate
Request</a></div></td>
</tr>
</table></td>
</tr>
</table>
<% End If ' end Not rsVerify.EOF Or NOT rsVerify.BOF %>
 
<div align="center">
<% If rsVerify.EOF And rsVerify.BOF Then %>
<table width="605">
<tr>
<td><div align="center">If you are
receiving
this message, chances are you are not completely setup in
USD. 
Please contact the help desk to have your information
verified and
setup
if needed.
</div></td>
</tr>
</table>
<% End If ' end rsVerify.EOF And rsVerify.BOF %>
</div>
<div align="center"></div>

</body>
</html>
<%
rsVerify.Close()
Set rsVerify = Nothing
%>
"Daniel" <[email protected]> wrote in message
news:[email protected]...
>i have a page that before the session variable was added,
would display the
>text i required if the recordset was empty.
>
> Now i have a session variable on the same page and if
the recordset is
> empty, instead of showing the text i need displayed, i
get the following
> error:
>
> --------------------------
> ADODB.Field error '800a0bcd'
> Either BOF or EOF is True, or the current record has
been deleted.
> Requested operation requires a current record.
>
> /Help_Desk/verified.asp, line 31
> -----------------------------
>
> If i remove the session variable code from the page, it
works fine.....why
> the conflicts?
>
> <%Session("last")
=(rsVerify.Fields.Item("c_last_name").Value)%>
> <%Session("first")
=(rsVerify.Fields.Item("c_first_name").Value)%>
> <html>
>
> --------------
>
> What im doing is verifying if a user exists in the
database. If they do
> there name is stored in a session and used later on the
following pages.
> If they do not exist, they are suppose to receive a
message indicating to
> call our support center to update there name...
>
> I dont understand why the addition of the above two
lines cause this error
>
>

Peculiar behavior of Shared Variable RT FIFO

I'm trying to "leverage" the enhanced TCP/IP and Shared Variable properties of LabView 8.5. My application involves (among other things) doing continuous sampling (16 channels, 1KHz/channel) using 6-year-old PXIs (Pentium III) and streaming data to the host. I developed a small test routine that was more than capable of handling this data rate, even when I had the host put a 20msec wait between attending to the PXI (to simulate other processing on the host). To do this, I enabled the "RT FIFO" property of the Shared Variable (which was an array of 16 I16 integers) and specified a buffer size of 50 (that's 50 arrays). Key to making this work was figuring out the "error codes" associated with the SV RT FIFO, particularly the one that says the FIFO is empty (so don't save the "non-data" that is present).
Flush with success, I started developing a more realistic routine that involves rather more traffic between Host and Remote, including the passing back and forth of "event" data. These include, among other things, "state variables" to enable both host and remote to run state machines that stay "in sync"; in addition, the PXI also acquires digital data (button pushes, etc.) which are other "events" to be sent to the Host and streamed to disk. I developed the dual state-machine model without including the "analog data" machine, just to get the design of the Host/Remote system down and deal with exchanging digital data through other Shared Variables. Along the way, I decided to make these also use an RT FIFO, as I didn't want to "miss" any data. One problem I had noticed when using Shared Variables is the difficulty of telling "is this new?", i.e. is the variable present one that has been already read (and processed) or something that needs processing. I ended up adopting something of a kludge for the events by including an incrementing "event ID" that could be tested to see if it was "new".
Today, I put the two routines together by adding the "generate 16-channels of integer data at 1 KHz and send it to the Host via the Shared Variable" code to my existing Host/Remote state machine. I used exactly the same logic I'd previously employed to monitor the RT FIFO associated with this Shared Variable (basically, the Host reads the SV, then looks at the error code -- a value of -2220 means "Shared Variable FIFO Read Buffer Empty", so the value you just read is an "old" value, so throw it away). Very sad -- my code threw EVERYTHING away! No matter how slowly the Host ran, the indicator always said that the Shared Variable FIFO Read Buffer was empty! This wasn't true -- if I ignored the flag, and saved anyway, I saw reasonable-looking data (I was generating a sinusoid, and I saw numbers going up and down). The trouble was that I read many more points than were actually generated, since I read the same values multiple times!
Looking at the code, the error line coming into the Shared Variable (before it was read) was -2220, and it remained so after it was read. How could this be? One possibility is that my other Shared Variables were mucking up the error line, but I would have thought that the SV Engine handling reading my "analog data" SV would have set the error line appropriately for my variable. On a hunch, I turned of the RT FIFO on the two Event shared variables, and wouldn't you know, this more-or-less fixed it!
But why? What is the point of having a shared variable "attached" to an error line and having it return "Shared Variable FIFO Read Buffer Empty" if it doesn't apply to its own Read Buffer? This seems to me to be a very serious bug that renders this extremely useful feature almost worthless (certainly mega-frustrating). The beauty of the new Shared Variable structure and the new code in Version 8.5 is that it does seem to allow better and faster communication in real-time using TCP/IP, so we can devote the PXI to "real-time" chores (data acquisition, perhaps stimulus generation) and let the PC handle data streaming, displays, controls, etc.
Has anyone been successful in developing a data-streaming application using shared variables between a PXI and and PC, particularly one with multiple real-time streams (such as mine, where I have an analog stream from the PXI at 16 * 1KHz, a digital stream from the PXI at irregular intervalus, but possibly up to 300 Hz, and "control" information going between PC and PXI to keep them in step)? Note that I'm attempting to "modernize" some Version 7 code that (in the absence of a good communication mechanism) is something of a nightmare, with data being kept in PXI memory, written on occasion to the PXI hard drive (!), and then eventually being written up to the PC; in addition, because the data "stayed" on the PXI, we split the signal and ran a second A/D board in the PC just so we could "see" the signal and create a display. How much better to get the PXI to send the data to the PC, which can sock it away and take samples from the data stream to display as they fly by on their way to the hard drive!
But I need to get Shared Variables (or something similar) working more "understandably" first ...
Bob Schor

Bob,
The error lines passed into and out of functions are just just clusters with a status boolean, an error code, and an error string, and are not "attached" to a particular function as you describe in your post. Most functions have an error in input and an error out output, and most functions will simply do nothing except pass through the error cluster if the error in status is True (to verify this for yourself, double click on a function such as a DAQmx Read or Write and look at the block diagram. If there is an error passed in, no read/write occurs). This helps prevent unwanted code from executing when an error does arise in your program. By wiring the error cluster from your other shared variables to your analog data variable, you're essentially telling LabVIEW that these functions are related and that your analog data variable depends requires that the other shared variables are functioning properly. The error wire is a great way to enforce the flow of your program, but you must always consider how it will affect other functions if an error does arise.
Anyways, it's great that you have things more or less working at the moment. Keep us all updated!

Customer exit variable in Planning filter - IP

Hi,
I am new to business planning. I am trying to use a customer exit variable in filter, while performing check system generates message "RFC failue error". the logic is written to get the current year. But I am not able to use this variable? Can you please answer me this question... Can I use Customer exit variables in planning modeler filters or planning functions ?

Hi there,
Yes you can, and it is used very often in both.
Probably your variable is wrongly defined.
What you can do is create a query over that aggregation level, and insert the planning filter in there. Put some key figure on the query and put a breakpoint on your variable customer exit code. Execute the query and debug the variable code to check the error.
Hope this helps,
Regards,
Diogo.

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