exclude some ids associated to determined condition - sql

Question

In the following code I am looking forward to extract the ids associated to accounts with a determined status.
There are 4 status (Active, Inactive, Closed, Verifying)
Almost every account is associated to a phone and one phone could be associated to various accounts, for example:
A phone could be associated to various accounts, 1 Active, 1 inactive and let's say maybe another closed (lets call this account A).
Account B is only associated to a Closed account
Account C is only associated to an Inactive account
With my code I am looking to identify those phones who are ONLY associated to accounts that are not active. I noticed that my code gives me back all phones associated to accounts like A, B and C (Because A is associated to at least 1 NOT 'Active' account), I just want phones associated to accounts like B and C, and exclude ALL type A (if the phone is linked to at least 1 Active account, I don't want it in my db)
select
phone.id,
phone.number,
account.status as status_account
max(date_trunc('day', accountstatuslog.modified)::date) as modif_account_date
from accountstatuslog
join account on account.id = accountstatuslog.account_id
join phone on phone.id = account.phone_id
where
account.status not in ('Active') and
accountstatuslog.status = account.status and
group by
account.status,
account.phone_id

Answer 1

You can use Anti-Join to eliminate the records that you want.
Anti-Join is efficient because it rejects a row at the first occurrence of the value to eliminate.
Table:
postgres=# select * from PhoneStatus;
phoneaccholder | accountstatus
----------------+---------------
Vincent | Active
Vincent | Inactive
Xavier | Active
Benjamin | Closed
Sebastian | Closed
Gabriel | Active
Christopher | Inactive
(7 rows)
SQL:
SELECT phoneaccholder
,accountstatus
-- ,Count(*)
FROM phonestatus x
WHERE NOT EXISTS (SELECT 1
FROM phonestatus y
WHERE y.accountstatus = 'Active'
AND x.phoneaccholder = y.phoneaccholder)
and accountstatus in ('Closed','Inactive')
GROUP BY accountstatus,
phoneaccholder;
Output:
phoneaccholder | accountstatus
----------------+---------------
Benjamin | Closed
Sebastian | Closed
Christopher | Inactive
(3 rows)