task 10

Author: devtraining84

task10.sql

@@ -0,0 +1,44 @@
+use financial16_25;
+
+SELECT
+    c.client_id,
+
+    sum(amount - payments) as client_balance,
+    count(loan_id) as loans_amount
+FROM loan as l
+         INNER JOIN
+     account a using (account_id)
+         INNER JOIN
+     disp as d using (account_id)
+         INNER JOIN
+     client as c using (client_id)
+WHERE True
+  AND l.status IN ('A', 'C')
+  AND d.type = 'OWNER'
+GROUP BY c.client_id
+HAVING
+    SUM(amount - payments) > 1000
+    AND COUNT(loan_id) > 5
+
+
+SELECT
+    c.client_id,
+
+    sum(amount - payments) as client_balance,
+    count(loan_id) as loans_amount
+FROM loan as l
+         INNER JOIN
+     account a using (account_id)
+         INNER JOIN
+     disp as d using (account_id)
+         INNER JOIN
+     client as c using (client_id)
+WHERE True
+  AND l.status IN ('A', 'C')
+  AND d.type = 'OWNER'
+--  AND EXTRACT(YEAR FROM c.birth_date) > 1990
+GROUP BY c.client_id
+HAVING
+    sum(amount - payments) > 1000
+--    and count(loan_id) > 5
+ORDER BY loans_amount DESC -- tutaj dodajemy sortowanie malejące po liczbie kredytów