Random Record Selection

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I have a client database of 3000 records I would like to randomly select 500
records for a mailing survey, any ideas how I could create a query to do
this?

Thanks Patrick
 
Try Microsoft Knowledge Base Article - 287682. I think
this will help you.

TOS
 
I have a client database of 3000 records I would like to randomly select 500
records for a mailing survey, any ideas how I could create a query to do
this?

Thanks Patrick
Click to expand...
You can use the Top Values property of a query, with help
from a little VBA. Put this little function into a Module:

Public Function RndNum(vIgnore As Variant) As Double
Static bRnd As Boolean
If Not bRnd Then
'Initialize the random number generator once only
bRnd = True
Randomize
End If
RndNum = Rnd()
End Function

Then add a calculated field to your Query by typing

Shuffle: RndNum([fieldname])

in a vacant Field cell, where [fieldname] is any field in
your table - this forces Access to give a different random
number for each record.

Sort the query by Shuffle, and set its Top Values property
to the number of records you want to see.
 
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