logical calculation within Access Query - ms-access

Question

I have a Access DB table that have the following data.
Room-Bed
Status
100-A
Available
100-B
Occupied
101-A
Available
101-B
Available
102-A
Occupied
102-B
Occupied
Having the room logic calculation as follows
In one bed, there are two beds, if any one bed is occupied, the room status is occupied.
If both beds are not occupied, the room status is available
If both beds are occupied, the room status is occupied
Likewise, is there are rooms with two beds or more, the room status is occupied as long as one of the bed is occupied.
Is there a way to design a query such that it will computed a room-level result as follows
Room
Status
100
Occupied
101
Available
102
Occupied

Answer 1

Try this:
Select
CStr(Val([Room-Bed])) As Room,
Max([Status]) As RoomStatus
From
Rooms
Group By
CStr(Val([Room-Bed]))
Result:
Room
RoomStatus
100
Occupied
101
Available
102
Occupied

Answer 2

As far as I see it, the logic can be simplified to the following rule:
For each room, if any of the beds are occupied, the room is occupied.
Otherwise the room is available.
The logic below is to count, for each room, the number of beds occupied (done below by giving an occupied bed a value of 1, otherwise it's 0 - then take the SUM).
Note that the below assumes you have a way to make a table room_bed_list with the columns room, room-bed, and room-bed-status. This is similar to your original table, but adds a room column - I'm assuming you already have a link from room-bed to this in another table.
Room
Room-Bed
Room-Bed-Status
100
100-A
Available
100
100-B
Occupied
101
101-A
Available
101
101-B
Available
102
102-A
Occupied
102
102-B
Occupied
SELECT room_bed_status.room,
IIF(Sum(IIf([room_bed_list].[room-bed-status] = "Occupied",1,0)) > 0, "Occupied", "Available") AS room_status
FROM room_bed_list
GROUP BY room_bed_status.room;