Hi,

I have table structure as follows

Table Name- facilities

facility_id | hotel_code | facility_name
1 1 Parking
2 1 AC
3 2 Parking
4 3 Parking
5 3 AC
6 4 AC

Now i have to find the 'hotel_code' that having 'Parking' and 'AC' both facilities ie 'hotel_code' as 1 and 3.

I hv tried following query

SELECT hotel_code FROM facilities WHERE facility_name IN ('Parking','AC') GROUP BY hotel_code

returns
1
2
3
4

Plz give some suggestion...

Your where clause is in effect the same as facility_name = 'Parking' or facility_name = 'AC' But what you need is facility_name = 'Parking' [U]and[/U] facility_name = 'AC'

Thanx for your reply.

I hv tried your query but got empty result set, as 'Parking' and 'AC' are not in single row.

Of course, you have to adapt the logic to your query.
Or you can join the hotel table to itself on the hotel_code:

SELECT distinct a.hotel_code FROM facilities a, facilities.b 
WHERE a.hotel_code = b.hotel_code
AND a.facility_name='Parking' and b.facility_name='AC'

But I assume this comes not before lesson 7.

The following query worked for me...

SELECT hotel_code 
FROM facilities 
WHERE facility_name IN ('Parking','AC') 
GROUP BY hotel_code 
HAVING COUNT(*)=2

tnkx