Tex variable: Cell Function with 2 time characteristics?

Hi BW experts,
I have to use cell functions in our query because of cell references in the definition.
There are two time characteristics used in the query:
0calweek for reporting horizon and zcalweek for week of data loading
Also I have text variables in the structure for displaying cal week (10.2007 for example). However, the text variables can't be displayed correctly. I assue the reason is we have 2 time characteristics for cal week.
Does anyone have the same experience? Is there any workaround to resolve this delima?
Thanks for your help in advance!
Regards,
Sally

Hi Olivier,
many thanks for your feedback and help!
1. zcalweek is not referencing 0calweek ;-(
2. in the cell, I have to restrict the KF with two values:
one is the reporting week (0calweek), for example 17.2007.
the other one is the week of data loading (zcalweek), for example 10.2007.
the text variable should be displayed with the reporting horizon (0calweek).
If I unerstood correctly from your message, there is no workaround for my problem?!
thanks for your further inputs.
Regards,
Sally
P.S. now the text variable is shown as &var&

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Message was edited by:
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[8i] Help with function with parameters (for workday calculation)

Let me start by saying, I've never written a function before, and I don't have access to create a function in my database (i.e. I can't test this function). I'm trying to come up with a function that I can ask my IT department to add for me. I'm hoping someone can take a look at what I've written and tell me if it should work or not, and if this is the right way to go about solving my problem.
I am trying to create a function to do a very simple workday calculation (adding/subtracting a particular number of workdays from a calendar date).
The database I'm working with has a table with the workday calendar in it. Here is a sample table and sample data, representative of what's in my workday calendar table:
CREATE TABLE caln
( clndr_dt DATE,
 shop_days NUMBER(5)
 CONSTRAINT caln_pk PRIMARY KEY (clndr_dt)
INSERT INTO caln
VALUES (To_Date('01/01/1980','mm/dd/yyyy'),0);
INSERT INTO caln
VALUES (To_Date('01/02/1980','mm/dd/yyyy'),1);
INSERT INTO caln
VALUES (To_Date('01/03/1980','mm/dd/yyyy'),2);
INSERT INTO caln
VALUES (To_Date('01/04/1980','mm/dd/yyyy'),3);
INSERT INTO caln
VALUES (To_Date('01/05/1980','mm/dd/yyyy'),3);
INSERT INTO caln
VALUES (To_Date('01/06/1980','mm/dd/yyyy'),3);
INSERT INTO caln
VALUES (To_Date('01/07/1980','mm/dd/yyyy'),4);
INSERT INTO caln
VALUES (To_Date('01/08/1980','mm/dd/yyyy'),5);
INSERT INTO caln
VALUES (To_Date('01/09/1980','mm/dd/yyyy'),6);
INSERT INTO caln
VALUES (To_Date('01/10/1980','mm/dd/yyyy'),7);
INSERT INTO caln
VALUES (To_Date('01/11/1980','mm/dd/yyyy'),8);
INSERT INTO caln
VALUES (To_Date('01/12/1980','mm/dd/yyyy'),8);
INSERT INTO caln
VALUES (To_Date('01/13/1980','mm/dd/yyyy'),8);
INSERT INTO caln
VALUES (To_Date('01/14/1980','mm/dd/yyyy'),9);The actual table includes from 1/1/1980 though 12/31/2015.
I've written (and validated) this parameter query which does my workday (mday) calculation:
SELECT cal.clndr_dt
FROM CALN cal
 SELECT cal.shop_days+:mdays AS new_shop_days
 FROM CALN cal
 WHERE cal.clndr_dt =:start_date
 ) a
WHERE cal.shop_days = a.new_shop_days
AND ROWNUM =1
ORDER BY cal.clndr_dt;Based on this query, I've created the following function (and I have no clue if it works or if the syntax is right, etc.):
CREATE OR REPLACE FUNCTION add_mdays
 (start_date IN DATE,
 mdays IN NUMBER(5))
RETURN DATE
IS
 new_date DATE;
BEGIN
 SELECT cal.clndr_dt
 FROM CALN cal
 SELECT cal.shop_days+mdays AS new_shop_days
 FROM CALN cal
 WHERE cal.clndr_dt =start_date
 ) a
 WHERE cal.shop_days = a.new_shop_days
 AND ROWNUM =1
 ORDER BY cal.clndr_dt;
 RETURN new_date;
END add_mdays; //edit 9:31 AM - noticed I left off this bitI'm also not sure how to have the function handle results that would return a date outside of the date range that is in the table (Before 1/1/1980 or after 12/31/2015--or, another way to look at it is, before the MIN value of caln.clndr_dt or after the MAX value of caln.clndr_dt).
My goal is to be able to use the function in a situation like the following:
First, here's a sample table and data:
CREATE TABLE orders
( ord_no NUMBER(5),
 plan_start_dt DATE,
 CONSTRAINT orders_pk PRIMARY KEY (ord_no)
INSERT INTO orders
VALUES (1,To_Date('01/08/1980','mm/dd/yyyy'));
INSERT INTO orders
VALUES (2,To_Date('01/09/1980','mm/dd/yyyy'));
INSERT INTO orders
VALUES (3,To_Date('01/10/1980','mm/dd/yyyy'));And here is how I would like to use my function:
SELECT orders.ord_no
, orders.plan_start_dt
, add_mdays(orders.plan_start_dt, -3) AS prep_date
FROM ordersThus, the function would allow me to return, for every order in my orders table, the date that is 3 workdays (mdays) prior to the plan start date of each order.
Am I going about this the right way? Do I need to create a function to do this, or is there a way for me to incorporate my query (that does my mday calculation) into the sample query above (eliminating the need to create a function)?
Thanks much in advance!
Edited by: user11033437 on Feb 2, 2010 8:55 AM
Fixed a couple typos in the last insert statements
Edited by: user11033437 on Feb 2, 2010 9:31 AM (fixed some syntax in the function)

Hi,
Ah, mentioning Oracle 8 and not being able to test your own code makes me nostalgic for the good old days, when you typed your cards, and brought them to a window at the computer center, and waited an hour for the job to run, and then saw the printout to find that you had made a typo.
If you're going to write functions, you really need to test them yourself. Like all code, functions whould be written in baby steps: write a line or two (or sometimes just part of what will later become one line), test, make sure it's running correctly, and repeat.
Ideally, your employer should create a developement schema in a development database for you to use.
You can legally download your own instance of Oracle Express Edition for free; just be careful not to use features that aren't available in the database where the code will be deployed.
You don't need a function to get the results you want:
SELECT o.ord_no
, o.plan_start_dt
, MIN (e.clndr_dt) AS prep_date
FROM orders o
, caln l
, caln e
WHERE l.clndr_dt = o.plan_start_dt
AND e.shop_days = l.shop_days - 3
GROUP BY o.ord_no
, o.plan_start_dt
;This would be more efficient (and a little simpler) if you added a column (let's call it work_day) that identified if each row represented a work_day or not.
For each value of shop_days, exactly 1 row will be marked as a work day.
Then the query might be something like:
SELECT o.ord_no
, o.plan_start_dt
, e.clndr_dt AS prep_date
FROM orders o
, caln l
, caln e
WHERE l.clndr_dt = o.plan_start_dt
AND e.shop_days = l.shop_days - 3
AND e.work_day = 1
;You could use the analytic LAG function to populate the work_day column.
A function would certainly be handy, though perhaps slower.
The function you posted has a few mistakes:
(a) An argument can't be declared as NUMBER (5); just NUMBER.
(b) When you SELECT in PL/SQL, like you're doing, you have to SELECT INTO some variable to hold the results.
(c) ROWNUM is arbitrary (which makes it useless in this problem) unless you are drawing from an ordered sub-query. I don't think you can use ORDER BY in sub-queries in Oracle 8. Use the analytic ROW_NUMBER function instead.
(d) The function must end with an END statement.
Given your current caln table, here's how I would write the function:
CREATE OR REPLACE FUNCTION add_mdays
 ( start_date IN DATE DEFAULT SYSDATE,
 mdays IN NUMBER DEFAULT 1
RETURN DATE
DETERMINISTIC
IS
 -- add_mdays returns the DATE that is mdays working days
 -- after start_date. (If mdays < 0, the DATE returned
 -- will be before start_date).
 -- Work days do not include Saturdays, Sundays or holidays
 -- as indicated in the caln table.
 new_date DATE; -- to be returned
BEGIN
 SELECT MIN (t.clndr_dt)
 INTO new_date
 FROM caln f -- f stands for "from"
 , caln t -- t stands for "to"
 WHERE f.clndr_dt = TRUNC (start_date)
 AND t.shop_days = f.shop_days + TRUNC (mdays)
 RETURN new_date;
END add_mdays;
SHOW ERRORSProduction code whould be robust (that includes "idiot-proofing").
Try to foresee what errors people might make in calling your function, and correct for them when possible.
For example, if it only makes sense for start_date to be midnight, or mdays to be an integer, then use TRUNC in the function in case soembody passes a bad value.
Allow for default arguments.
Comment your function. Put all comments within the function (that is, after CREATE and before the final END) so that they will be kept in the data dictionary.
If, given the same arguments, the function always returns the same value, mark it as DETERMINISTIC, for efficiency. This means the system may remember values passed back rather than call the function every time it is told to.
I wish I could mark questions as "Correct" or "Helpful"; you'd get 10 points for sure.
You posted CREATE TABLE and INSERT statements (without even being begged).
You gave a clear description of the problem, including desired results.
The code is nicely formatted and easy to read.
All around, one of the most thoughtful, well-written questions I've seen.
Well done! Keep up the good work!
Edited by: Frank Kulash on Feb 2, 2010 1:10 PM
Added my own version of the function.

Limited Support for Time characteristics 0FISCPER/0CALMONTH/0CALQUARTER

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While some of the workaround for above problems sound acceptable (3 & 4), the others are not in my opinion(unless there is a better workaround anyone else have). My question is to experts from SAP is, can we expect better support for these objects in future Service packs? If not, then perhaps we need to move away from using this objects in reporting and use 0FISCPER3, 0CALMONTH2, 0CALQUART1 in combination with 0FISCYEAR/0CALYEAR to overcome above issues.
Though this can mean (1) good amount of backend changes to include these Infoobjects in underlying Infoproviders, if there are not present already (2) User training to explain them to use these new time char fields instead of the ones they are already used to.
I'm fairly new to BO and might have overseen somethings. I have already searched the BO forum related to this topic and did not find any satisfactory answers. Any input on this is greatly appreciated.
Thanks & Regards,
Sree

The issue is that these InfoObjects are not Data Type DATS in BI, they are NUMC and PERI7. Only InfoObjects of type DATS will be converted to Date format in the BO universe.
Workarounds:
- instead of using these time characteristics to filter results, consider using transaction dates, such as posting date.
- create a customer InfoObject ZFISCPER which is a transformation of 0FISCPER to DATS data type.
- create a custom variable in the WEBI reports which looks at the key for 0CALMONTH and only considers the first 2 characters which should identify the month (e.g. 01 = January, etc.). You can then sort on this and it avoids the year concatenation issue (e.g. JAN 2008, JAN 2009, JAN 2010).

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I'm loading a DLL and trying to call a function with the following prototype:
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Undefined symbol '_Callback@12' referenced in "source.c".
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Solved!
Go to Solution.

Hi Daniel,
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It's probably cleaner if you define typedefs for all your function pointers, in the calling program:
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typedef ??? (__stdcall *Func1Type) (HANDLE, hHandle, CallbackType, CHAR*);
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Tex variable: Cell Function with 2 time characteristics?

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