Allowing a visitor a "no preference" choice

[Rich Palarea]

I'd like to offer a website visitor the chance to select all records, in
addition to being able to select the preferences they want (i.e.: no
preference). To give you a better idea of how the sql is structured (MS
Access db with .asp):

User can choose to find a group by three fields: GroupMix, MeetingDay,
MeetingLocation from the table Smallgroups. All are dropdown fields in a
form. GroupMix and MeetingLocation are populated by a SELECT statement to
the Smallgroups table. MeetingDay is pre-populated with days of the week.

It is easy to get "no records found" with this setup because of the limited
number of records in the table at present. I would like the user to be
allowed the choices of "no preference" inside of the three drop down fields.

Present SQL for the form (showing just the dropdown portion for GroupMix;
there is a similar select for MeetingLocation further down in my page):

<% end if %>
<%
fp_sQry="SELECT Distinct Smallgroups.GroupMix FROM Smallgroups ORDER BY
GroupMix ASC"
fp_sDefault=""
fp_sNoRecords="No records returned."
fp_sDataConn="GFCData"
fp_iMaxRecords=256
fp_iCommandType=1
fp_iPageSize=0
fp_fTableFormat=False
fp_fMenuFormat=True
fp_sMenuChoice="GroupMix"
fp_sMenuValue="GroupMix"
fp_sColTypes="&OrgID=3&Name=202&MeetingDay=202&MeetingLocation=202&GroupMix=
202&MeetingTime=202&ChildrenAllowed=202&Status=202&ContactIndLabel=202&Conta
ctHomePhone=202&ContactIndvEmail=202&"
fp_iDisplayCols=1
fp_fCustomQuery=False
BOTID=0
fp_iRegion=BOTID
%>

Present SQL for the results page:
<% end if %>
<%
fp_sQry="SELECT * FROM Smallgroups WHERE (status = 'open' AND MeetingDay =
'::MeetingDay::' AND GroupMix = '::GroupMix::' AND MeetingLocation =
'::MeetingLocation::')"
fp_sDefault=""
fp_sNoRecords="No records returned."
fp_sDataConn="GFCData"
fp_iMaxRecords=256
fp_iCommandType=1
fp_iPageSize=0
fp_fTableFormat=False
fp_fMenuFormat=False
fp_sMenuChoice=""
fp_sMenuValue=""
fp_sColTypes="&OrgID=3&Name=202&MeetingDay=202&MeetingLocation=202&GroupMix=
202&MeetingTime=202&ChildrenAllowed=202&Status=202&ContactIndLabel=202&Conta
ctHomePhone=202&ContactIndvEmail=202&"
fp_iDisplayCols=11
fp_fCustomQuery=True
BOTID=0
fp_iRegion=BOTID
%>

Present working page: http://smallgroups.gfc.org/IDsite/locator.asp

Thanks!
Rich