MySQL: Selecting available vehicles that are not reserved - mysql

Question

I have the following two records in the reservation table of a MySQL database.
When I use this query to get the vehicles that are available, it seems to give me every vehicle instead of just the ones not in the reservation table between the specified dates.
this is the query:
SELECT v.id, v.brand, v.type, v.description, v.airco, v.seats, v.hourly_rent
FROM vehicle as v
WHERE v.id
NOT IN(
(SELECT v.id
FROM vehicle as v
LEFT JOIN reservation as r on r.`vehicle_id` = v.id
WHERE r.status_id in(3,4,5)
AND (
(
('2014-01-01' >= r.startdate AND '2014-01-03' <= r.enddate )
OR
('2014-01-01' <= r.startdate AND '2014-01-03' >= r.enddate )
)
OR
(
('2014-01-01' >= r.startdate AND '2014-01-01' <= r.enddate)
OR
('2014-01-03' >= r.startdate AND '2014-01-03' <= r.enddate)
)
)
GROUP BY v.id
)
)
And when I use this query:
SELECT *
FROM reservation as r
WHERE (
(
('2014-01-01' >= r.startdate AND '2014-01-03' <= r.enddate )
OR
('2014-01-01' <= r.startdate AND '2014-01-03' >= r.enddate )
)
OR
(
('2014-01-01' >= r.startdate AND '2014-01-01' <= r.enddate)
OR
('2014-01-03' >= r.startdate AND '2014-01-03' <= r.enddate)
)
)
To get the reservations only, I get 1 record as u can see in the picture.
What could be wrong and how can I fix this?

Answer 1

Try This -
SELECT v.id, v.brand, v.type, v.description, v.airco, v.seats, v.hourly_rent
FROM vehicle AS v
LEFT JOIN reservation AS r
ON v.id = r.vehicle_id
AND r.startdate <= '2014-01-03'
AND r.enddate >= '2014-01-01'
WHERE r.id IS NULL;
Or with your status entries
SELECT v.id, v.brand, v.type, v.description, v.airco, v.seats, v.hourly_rent
FROM vehicle AS v
LEFT JOIN reservation AS r
ON v.id = r.vehicle_id
AND r.startdate <= '2014-01-03'
AND r.enddate >= '2014-01-01'
AND r.status NOT IN (3,4,5)
WHERE r.id IS NULL;

Answer 2

Without seeing the table structure it's harder to assume however this is my crack.
Just look where the V.id not exeists int the reservation table.
SELECT
v.id,
v.brand,
v.type,
v.description,
v.airco,
v.seats,
v.hourly_rent
FROM vehicle as v
WHERE NOT EXISTS (
SELECT 1
FROM reservation as r
WHERE r.vehicle_id = v.id
AND r.status_id NOT IN (3,4,5)
AND(
(
('2014-01-01' >= r.startdate AND '2014-01-03' <= r.enddate )
OR
('2014-01-01' <= r.startdate AND '2014-01-03' >= r.enddate )
)
OR
(
('2014-01-01' >= r.startdate AND '2014-01-01' <= r.enddate)
OR
('2014-01-03' >= r.startdate AND '2014-01-03' <= r.enddate)
)
)
)
GROUP BY v.id))