URGENT How to map an aggregated result to Target flat-file?**

Question

All,
I am trying to map the result of the following query from 'source1' to my target which is a flat file.
The query result set has 'one row per account' which is unique and record looks like :
12300,9675,2008,6,11250,$-2095.48
Questions>>>
1. what is the proper context ( at what level-- project, global?) should I create the $v_year, $v_period variables.?
I need the values for this 2 variables to be recognized at the end once I 'package' the mapping
so user can pass on the values at runtime.
2. Can this query somehow to be plugged as a 'filter' on top of the 'source1' in the interface? and result then mapped to the target?
what is the alternative if not? (dump it to another temp table? in SUNOPSIS memory engine?)
SELECT
PS_.product,
PS_.operating_unit,
$V_YEAR,
$V_PERIOD,
PS_.account,
SUM(PS_.posted_total_amt) TOT_AMT
FROM psoftdb.ps_ledger PS_
WHERE
((PS_.ledger='ACTUALS')
AND (PS_.accounting_period <=$V_PERIOD)
AND (PS_.fiscal_year=$V_YEAR)
AND ((SUBSTR(PS_.account,1,1)='1' OR
SUBSTR(PS_.account,1,1)='2' OR
SUBSTR(PS_.account,1,1)='3')
GROUP BY
PS_.product,
PS_.operating_unit,
PS_.account

Answer 1

IN order to do this you will need to declare two variables - at project level, with non-persistent type. You will need to have reverse engineered the source table into a data model. You should also define your flat file as a data model too. If this does not already exist, you will need to manually define it.
Create a package in which the first steps are to declare the variables.
then insert an interface which uses your source table as a source and your flat file as a target.
In the interface select "Staging area different from target" and select the schema of your source from the drop-down.
In your source, drag all the columns on which you want to filter (including accounting_period and fiscal_year) on to the grey background and fill in the filter details. Use the expression editor to set the filter, selecting the variable from the list, which ensures the correct syntax is used.
Fill in all the other mapping details.
On the flow tab select the IKM SQL to File Append as your IKM. This should allow you to create your output in one step.
Build a scenario from your package, and when you execute it pass in the variables:
e.g. startscen MYSCEN MYCONTEXT 001 "-MYPROJ.V_YEAR=1999" "-MYPROJ.V_PERIOD=07"