How to conditionally hide rows in Cognos report?

Data：

Estate	Block	Customer	Status
ALC	1	AAA
ALC	1	BBB	Settle
ALC	1	CCC
ALC	2	DDD	Settle
ALC	2	EEE

Requirement：Count records by estate, block, hide customer with status = ‘Settle’ when display.

Estate	Block	Customer	Status
ALC	1	AAA
ALC	1	CCC
Settled case:	1
Total case:	3
ALC	2	EEE
Settled case:	1
Total case:	2

 

It is a piece of cake that implementing this report in Crystal report, but it spent me much time in Cognos ReportNet—I can’t find out how to hide a whole row.

At first, I have tried to control visibility of the fields with conditional variable. But, there still existed a blank row though all the fields were hidden.

Estate	Block	Customer	Status
ALC	1	AAA
ALC	1	CCC
Settled case:	1
Total case:	3
ALC	2	EEE
Settled case:	1
Total case:	2

Another way I have tried is wrapping all fields with conditional block. The blank rows were still there, just with smaller height.

 

Finally, I gave up finding out which option could be used to hide the whole row. I have amended the SQL with COUNT(…) OVER (PARTITION BY …):

SELECT estate, block, customer, status, count(customer) over (partition by estate, block) as totalCase FROM table ORDER BY estate, block.

The retrieved data with the amended SQL:

Estate	Block	Customer	Status	totalCase
ALC	1	AAA		3
ALC	1	BBB	Settle	3
ALC	1	CCC		3
ALC	2	DDD	Settle	2
ALC	2	EEE		2

In the last step, A filter was added to the details in the report: status <> ‘Settle’, and the calculation of grouping area ‘Total Case’ was set to Average.