Question

I am trying to get JasperReports to mimic the SQL GROUP BY ALL functionality. I am grouping by MY_BOOL which can either by 0 or 1 and I am displaying the value, and a count on the number of rows in my report. However, I want to display a row for each, even if there are 0 rows for one of the values. So for example, if my query returns ten rows, and MY_BOOL=0 for all ten, I would like to see:

MY_BOOL | COUNT
0         10
1         0

How can I accomplish this in JasperReports?

Answer 1

EDITED:
It sounds like you need 2 variables and no groups.

$V{MY_BOOL_0} counts all rows where $F{MY_BOOL} is 0. $V{MY_BOOL_1} counts all rows where $F{MY_BOOL} is 1. The initial value of each variable is 0, so it doesn’t matter if there are zero rows with $F{MY_BOOL} = 0.

Display the 2 variables in the title (or summary or wherever) to provide your 2 “grouped” subtotals.

Note: These 2 variables don’t use groups at all, but they would be compatible with groups. For example, you could calculate the MY_BOOL_0 and MY_BOOL_1 values for each month if you group on months.