Ich gehe davon aus, dass (patient_id, adherence_date, scheduled_time) ist einzigartig in Ihrer Tabelle, was bedeutet, dass ein Patient einmal pro "Slot" und Datum buchen kann.
with medication_adherences as(
-- This is your test data
select 10049 as patient_id, 1 as id, date '2017-10-01' as adherence_date, 'morning' as scheduled_time, timestamp '2017-10-31 19:59:19' as acknowledged_at from dual union all
select 10049 as patient_id, 2 as id, date '2017-10-01' as adherence_date, 'afternoon' as scheduled_time, null as acknowledged_at from dual union all
select 10049 as patient_id, 3 as id, date '2017-10-01' as adherence_date, 'night' as scheduled_time, timestamp '2017-10-31 19:59:19' as acknowledged_at from dual union all
select 10049 as patient_id, 4 as id, date '2017-10-02' as adherence_date, 'morning' as scheduled_time, timestamp '2017-10-31 19:59:19' as acknowledged_at from dual union all
select 10049 as patient_id, 5 as id, date '2017-10-02' as adherence_date, 'afternoon' as scheduled_time, timestamp '2017-10-31 19:59:19' as acknowledged_at from dual union all
select 10049 as patient_id, 6 as id, date '2017-10-02' as adherence_date, 'evening' as scheduled_time, timestamp '2017-10-31 19:59:19' as acknowledged_at from dual union all
select 10049 as patient_id, 7 as id, date '2017-10-02' as adherence_date, 'night' as scheduled_time, null as acknowledged_at from dual
)
select adherence_date
,sum(case when scheduled_time = 'morning' then nvl2(acknowledged_at,1,0) end) as morning
,sum(case when scheduled_time = 'afternoon' then nvl2(acknowledged_at,1,0) end) as afternoon
,sum(case when scheduled_time = 'evening' then nvl2(acknowledged_at,1,0) end) as evening
,sum(case when scheduled_time = 'night' then nvl2(acknowledged_at,1,0) end) as night
from medication_adherences
where patient_id = 10049
group
by adherence_date;
Die Logik funktioniert wie folgt:
- Wenn "cognizd_at" null ist, dann aggregieren wir 0 (über nvl2)
- if accepted_at ist nicht null, dann aggregieren wir 1 (über nvl2)
- Wenn es keinen Datensatz für dieses Zeitfenster gibt, aggregieren wir null (da Fall, wenn ... fehlgeschlagen ist)
