Rowyn (rowyn) wrote,
Rowyn
rowyn

I Are Dumb

Or maybe it's Crystal Reports, not me.

I run into this problem now and again, where I need to do a report on a database field that might or might not have actual data in it.

As an example, starting with a report that shows the value of Funfield in all records:

Name Funfield
Boo Foo
Goo Ooo
Joo Due
Noo

Now I modify this report to show all records where Funfield = Foo.

Name Funfield
Boo Foo

Next, show all records where Funfield != Foo.

Name Funfield
Goo Ooo
Joo Due

Why isn't Noo on this report?

If I try isnull({funfield}), I get no results:

Name Funfield

Now, say I do a formula named "NoFun" and define it as "if {funfield} = Foo then true, else false" and display it on my original all-results report, I get:

Name Funfield Nofun
Boo Foo True
Goo Ooo False
Joo Due False
Noo False

But if I try to get sneaky and ask for all results where Nofun is False:

Name Funfield Nofun
Goo Ooo False
Joo Due False

... Noo's still missing.

Anyone out there smarter than me that knows (a) why this happens and/or (b) how I can get around this? I'm using Crystal v.11.

... and preferably short of redoing the report in Excel, because it's not this simple a report. ;_;
Tags: crystal, work
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