Formula Logic for Dates in the Cell Editor in Query Designer

Question

Hi All
We are on BI7. (This is in the Cell Editor in Query Designer)
I am trying to create a formula in one cell that enters a date based on the following logic (Lets call this formula A):
I also have a placeholder "Cell reference" for a Date in another cell in the Cell Editor (Lets call it B).
I also have two other dates in seperate cells in the Editor (Lets call them C and D)
What i need to do is check that either C or D are not blank i.e one at least has a date and if so enter the date that is in B in A.
My formula logic in (Cell A) at the moment is as follows:
( Cell C <> 0 ) OR ( Cell D <> 0) * Cell B
When I run the query It is coming back with either a 1 or  0 depending if there is a date in C or D.
What I want it to do is to display the actual date of  'Cell B'  in 'Cell A' if  ( Cell C <> 0 ) OR ( Cell D <> 0)
If the value of B is blank ie no date I also want A to be blank i.e not equal zero or a blank date ie 00/00/0000
Example 1
Cell A    08/09/2009
Cell B    08/09/2009
Cell C   15/03/2010
Cell D
Cell A should = 08/09/2009 as there is a Date in Cell C or D and if so enter the date of Cell B in cell A
Example 2
Cell A   
Cell B    08/09/2009
Cell C  
Cell D
Cell A should = BLANK as there is a NO Date in Cell C or D
Example 3
Cell A   
Cell B  
Cell C   15/03/2010
Cell D
Cell A should = BLANK as there is a No Date in Cell B although a Date in cell C or D.
Thank you for assistance in advance
Kind regards
Stevo

Answer 1

Hi there,
It seems you have done almost everything...
What it seems that is missing is probably the cell reference for Cell C and for Cell D, or did you forget to mention it here?
So here it is the big idea:
- In the Cell Editor of the query designer, create a new cell reference for Cell C, let's name it ref_cell_c;
- In the Cell Editor of the query designer, create a new cell reference for Cell D, let's name it ref_cell_d;
- In the Cell Editor of the query designer, create a new cell reference for Cell B, let's name it ref_cell_b;
- In the Cell Editor of the query designer, create a new formula for Cell A, let's name it form_cell_a;
The form_cell_a should be created by the following:
( COUNT(ref_cell_c) + COUNT(ref_cell_d) ) * ref_cell_b
So COUNT(operand) returns 1 if operand is different of 0 else it returns 0; So if ref_cell_c has any valu or ref_cell_d has any value it should return the value of ref_cell_b.
Please note that with this formula, if you have values in both ref_cell_c and ref_cell_d this formula returns 2 * ref_cell_b, which is not what you pretend, I'm assuming you'll have value only for the following combinations:
ref_cell_c has value but ref_cell_d don't have any
ref_cell_c don't have any value but ref_cell_d has a value
ref_cell_c don't have any value neighther has ref_cell_d any
Diogo.