Help needed in OBIEE Rank function

Question

Hi All,
I have a request having Period, Amount,Branch code. In this i need to figure out the top N ranks (N is the user input which is populated using Presentation variable) based on the amount.
Then in the final output it should display as Top N branches with its previous period's data.
For eg: If we try to rank the amount for period=31-dec-2010. The final output should be displayed in pivot table as
*(Branchname in Pivottable section)*
* (Period to be displayed columnwise) 31-Mar-2010 30-Jun-2010 30-Sep-2010 31-Dec-2010*
Amount (Measure)
Can you guide me to achieve the above request?
Is there a way to calculate rank based on two columns?
Kindly help me.
Regards,
Bhuvan R

Answer 1

CREATE OR REPLACE FUNCTION fucntion_name(latA IN NUMBER, longA IN NUMBER, latB IN NUMBER, longB IN NUMBER) RETURN NUMBER
IS
pi      CONSTANT NUMBER:=3.14159;
theta NUMBER;
distX  NUMBER;
distY  NUMBER;
distZ  NUMBER;
distP  NUMBER;
BEGIN
theta :=longA - longB;
distX :=sin( latA * PI /180) * sin ( latB * PI /180) + cos ( latA * PI/180) * cos ( latB * PI/180) * cos ( theta * PI / 180);
distY :=acos(distX); --this is arc cosine
distZ :=distY * 180/PI;  --PI refers to the mathematical PI
distP :=distZ * 60 * 1.1515; --this value should be returned. Of course the intermediate variable names don't matter.
RETURN distP;
END;Edited by: Ora on May 3, 2011 11:46 PM