mysql query not working with where in condition - mysql

Question

I am running following query in mysql.
SELECT jobtype_has_trade.jobtype_id,users_jobtype.user_id
FROM users
LEFT JOIN subcontractor ON users.subcontractor_id = subcontractor.id
AND subcontractor.quotations = "YES"
LEFT JOIN users_jobtype ON users.id = users_jobtype.user_id
AND users_jobtype.status = "A"
LEFT JOIN jobtype_has_trade ON users_jobtype.jobtype_trade_id = jobtype_has_trade.id
WHERE users.is_subcontractor = "YES"
AND users.has_android = "YES"
AND jobtype_has_trade.jobtype_id IN (1,3,4)
ORDER by users_jobtype.user_id ASC
and i am getting this output
In above records i need only that user_id that have jobtype_id 1,3 and 4. so, user_id 3 and 7 is acceptable and 9 is not because it has only 3 and 4 as jobtype_id... in sort how can i get only 3 and 7 as user_id in above query?

Answer 1

one option could be to use having clause with group by
SELECT users_jobtype.user_id
FROM users
LEFT JOIN subcontractor ON users.subcontractor_id = subcontractor.id
AND subcontractor.quotations = "YES"
LEFT JOIN users_jobtype ON users.id = users_jobtype.user_id
AND users_jobtype.status = "A"
LEFT JOIN jobtype_has_trade ON users_jobtype.jobtype_trade_id = jobtype_has_trade.id
WHERE users.is_subcontractor = "YES"
AND users.has_android = "YES"
AND jobtype_has_trade.jobtype_id IN (1,3,4)
group by users_jobtype.user_id
having count(distinct jobtype_has_trade.jobtype_id)=3

Answer 2

just check existing of jobtype_id in 1,3,4 for each user. I don't know about your schema
if you have jobtype_id in users_jobtype then you don't need to join to jobtype_has_trade in subquery in where (in my solution)
SELECT jobtype_has_trade.jobtype_id,
users_jobtype.user_id
FROM users
LEFT JOIN subcontractor ON users.subcontractor_id = subcontractor.id
AND subcontractor.quotations = "YES"
LEFT JOIN users_jobtype ON users.id = users_jobtype.user_id
AND users_jobtype.status = "A"
LEFT JOIN jobtype_has_trade ON users_jobtype.jobtype_trade_id = jobtype_has_trade.id
WHERE users.is_subcontractor = "YES"
AND users.has_android = "YES"
AND jobtype_has_trade.jobtype_id IN (1,
3,
4)
and exists( select jobtype_id from jobtype_has_trade inner join users_jobtype on users_jobtype.jobtype_trade_id=jobtype_has_trade.id where users_jobtype.user_id=users.id and
jobtype_has_trade.jobtype_id=1
)
and exists( select jobtype_id from jobtype_has_trade inner join users_jobtype on users_jobtype.jobtype_trade_id=jobtype_has_trade.id where users_jobtype.user_id=users.id and
jobtype_has_trade.jobtype_id=3
)
and exists( select jobtype_id from jobtype_has_trade inner join users_jobtype on users_jobtype.jobtype_trade_id=jobtype_has_trade.id where users_jobtype.user_id=users.id and
jobtype_has_trade.jobtype_id=4
)
ORDER BY users_jobtype.user_id ASC