vues

banque.vues.md

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+```sql
+create or replace view holder_detail as
+select h.id, h.type,
+  case
+  when type = 'PERSON' then firstname || ' ' || lastname
+  else name
+  end as nom,
+  case
+  when type = 'PERSON' then age(birthdate)
+  when type = 'COMPANY' then age(c.created_at)
+  end as age
+from holder h
+  left join person p on p.id = h.id
+  left join company c on c.id = h.id;
+```
+
+```sql
+create or replace view account_detail as
+select a.balance,
+  a.balance * ah.share as balance_currency,
+  a.balance * ah.share / latest_exchange_rate(a.currency_code, current_date),
+  a.currency_code,
+  hd.nom
+from account a
+join account_holder ah on ah.account_id = a.id
+join holder_detail hd on ah.holder_id = hd.id;
+```