Crystal Reports for Rational Application Developer Designer Guide
Conditions for summary functions
Here is a list of the conditions for each summary function:
Boolean conditions
on any change
on change to yes
on change to no
on every yes
on every no
on next is yes
on next is no
Date conditions
for each day
for each week
for each two weeks
for each half month
for each month
for each quarter
for each half year
for each year
Time conditions
for each second
for each minute
for each hour
for AM/PM
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