Group Expression

I have a doubt on group expressions. Can anyone tell me the
significance of creating a group in a table where the group on
expression is =1?If you group on an expression like =1, you are grouping on a constant value.
Consequently, you will only get one group at runtime which contains all
data.
A grouping in RDL is similar to what a "group by" in a SQL query is doing -
it is grouping the data into groups based on the grouping value.
-- Robert
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"Anishya" <anishya@.gmail.com> wrote in message
news:1127286499.682855.101660@.g44g2000cwa.googlegroups.com...
>I have a doubt on group expressions. Can anyone tell me the
> significance of creating a group in a table where the group on
> expression is =1?
>