How can i use calculation from one sheet into another sheet in discoverer

Question

I have a function which has to be used for several calcualtions in discoverer report.For each row the function is called 8 times, Is there any way that i can create a caculation based on the function in one tab and use this value returned by the function in the other tabs in the discoverer so that i can eliminte the function being called 8 times for each row.
Please help.

Answer 1

Hi Lloyd ,
Thanks for the reply. See below for the detail explanation of what i am Talking about.
I am Developing a Operational Expense Report based on a Custom Table.
I get the following columns from the custom Table - Account, Amount Manual, Amount Local, Amount Overseas.
Then I have two Functions which Calculates two different Ratios Based on the other Custom Table.
1st function - Qualifying Sales Ratio
CREATE OR REPLACE FUNCTION xxwfs_avi_q_sales_ratio (p_period VARCHAR2)
RETURN NUMBER
IS
v_q_ratio NUMBER := NULL;
BEGIN
SELECT ROUND ((a.nonqualified_ar_amount / b.nq_nq_ar_amount), 4) qualifying_sales_ratio
INTO v_q_ratio
FROM (SELECT SUM(NVL(gp.total,0)) qualified_ar_amount
FROM xxwfs_gp_table gp
WHERE gp.company = 24101
AND gp.gtp_qualified = 'Q'
AND gp.org_id = 126
AND gp.gl_date >= p_from_date
ANDgp.gl_date <= p_to_period) a,
(SELECT SUM(NVL(gp.total,0)) nq_nq_ar_amount
FROM xxwfs_gp_table gp
WHERE gp.company = 24101
AND gp.gtp_qualified in( 'Q','NQ')
AND gp.org_id = 126
AND gp.gl_date >= p_from_date
ANDgp.gl_date <= p_to_period) b;
RETURN v_q_ratio;
EXCEPTION
WHEN OTHERS
THEN
v_q_ratio := 0;
RETURN v_q_ratio;
END xxwfs_avi_q_sales_ratio;
2nd Function - Nonqualifying Sales Ratio
CREATE OR REPLACE FUNCTION xxwfs_avi_nq_sales_ratio (p_period VARCHAR2)
RETURN NUMBER
IS
v_q_ratio NUMBER := NULL;
BEGIN
SELECT ROUND ((a.nonqualified_ar_amount / b.nq_nq_ar_amount), 4) nonqualifying_sales_ratio
INTO v_q_ratio
FROM (SELECT SUM(NVL(gp.total,0)) nonqualified_ar_amount
FROM xxwfs_gp_table gp
WHERE gp.company = 24101
AND gp.gtp_qualified = 'NQ'
AND gp.org_id = 126
AND gp.gl_date >= p_from_date
ANDgp.gl_date <= p_to_period) a,
(SELECT SUM(NVL(gp.total,0)) nq_nq_ar_amount
FROM xxwfs_gp_table gp
WHERE gp.company = 24101
AND gp.gtp_qualified is not null
AND gp.org_id = 126
AND gp.gl_date >= p_from_date
AND gp.gl_date <= p_to_date) b;
RETURN v_q_ratio;
EXCEPTION
WHEN OTHERS
THEN
v_q_ratio := 0;
RETURN v_q_ratio;
END xxwfs_avi_nq_sales_ratio;
The report is Run based on the parameter for the Range of gl_date.
I registered these functions in discoverer and passing the parameter values to calculate the ratios. The 2 ratios are just one time calculations for the range of gl_date the report is run.
The i mulitiply Qualifying Sales Ratio with the columns Amount Manual, Amount Local and Amount Overseas to get Qualifyied Amount Manual, Qualified Amount Local , Qualifyied Amount Overseas and the Nonqualifing Sales Ratio with the same Amount Manual, Amount Local and Amount Overseas columns to get NonQualifyied Amount Manual, NonQualified Amount Local , NonQualifyied Amount Overseas.
This is the design i am approching now. For each record the function is called 8 times to calculates the qualifying and Non qualifying Sales ratios Ato caculate the other 6 columns based on these Ratio Calculations.
So i was thinking if there is any way that i can get the Ratios for a specific date range in the First tab and usethe Value of the ratios in the other tab so that the function call is minimized.
Waiting for your replies.