Random selection from Crystal
Random selection from Crystal
(OP)
Hello
I've created a Crystal report which returns about 200,000 records. I now need to select a random sample of 10,000 records from that. Does anyone have any suggestions? I've tried using the TopN function but that was unsuccessful.
Can anyone help?
Thanks
Myv
I've created a Crystal report which returns about 200,000 records. I now need to select a random sample of 10,000 records from that. Does anyone have any suggestions? I've tried using the TopN function but that was unsuccessful.
Can anyone help?
Thanks
Myv
RE: Random selection from Crystal
rnd()
Then use {@random} to sort your report ascending.
Finally, go to format->section->details->suppress and enter:
recordnumber > 10000
-LB
RE: Random selection from Crystal
I've gone into the select expert and the chosen "show formula" and then "formula editor".
My formula at the moment is as follows:
{CBCONHPF.THCRST} = "A" and
{CBBSECPF.BSBSDS} = "Residential" and
{CBCONHPF.THOWTY} <> 3.00 and
{CBCONHPF.THCOMP} = "01"
Where do I put the {@random} command?
I understand your second instruction about format, section, details and suppress.
Finally, where do I enter: recordnumber > 10000?
Thanks in advance
Myv
RE: Random selection from Crystal
1-Create a formula using the random function by going to insert->formula field->new->name it "random" and enter:
Rnd()
2-Place the formula {@random} on the report in the details section.
3-Then go to report->sort records and add {@random} as the sort field.
4-Then go to format->section->details->suppress (you don't need to check it)->x+2 button to the right (this is the formula area for section suppression) and enter:
recordnumber > 10000
-LB
RE: Random selection from Crystal
FAQ767-3260
Old versions:
http://support.businessobjects.com/library/kbase/articl...
-k