get flat tenants

cli/OverheadAccounts.py

@@ -1,3 +1,4 @@
+import typing_extensions
 from db import dbGetMany
 import datetime
 from loguru import logger
@@ -13,6 +14,24 @@ def perform(dbh, params):
 
 
     # get flat tenants by object and timespan with paid overhead and due overhead
+select t.id as tenant_id,
+       t.firstname as tenant_firstname,
+       t.lastname as tenant_lastname,
+       f.id as flat_id,
+       f.description as flat,
+       p.id as house_id,
+       p.description as house,
+       ty.startdate as startdate,
+       ty.enddate as enddate
+    from tenant_t t,
+         premise_t p,
+         flat_t f,
+         tenancy_t ty
+    where ty.tenant = t.id and
+          ty.flat = f.id and
+          f.premise = p.id
+    order by house_id, tenant_id;
+
 
 
     # get overhead sums by object, category and timespan