Add files via upload

calculate_largest_expensors.sql

@@ -0,0 +1,20 @@
+SELECT
+  e.employee_id,
+  CONCAT(e.first_name, ' ', e.last_name) AS employee_name,
+  e.manager_id,
+  CONCAT(m.first_name, ' ', m.last_name) AS manager_name,
+  SUM(x.unit_price * x.quantity) AS total_expensed_amount
+FROM memory.default.sexi_expense x
+JOIN memory.default.employee e
+  ON x.employee_id = e.employee_id
+LEFT JOIN memory.default.employee m
+  ON e.manager_id = m.employee_id
+GROUP BY
+  e.employee_id,
+  e.first_name,
+  e.last_name,
+  e.manager_id,
+  m.first_name,
+  m.last_name
+HAVING SUM(x.unit_price * x.quantity) > 1000
+ORDER BY total_expensed_amount DESC;

create_employees.sql

@@ -0,0 +1,20 @@
+
+CREATE TABLE memory.default.employee (
+    employee_id TINYINT,
+    first_name VARCHAR(255),
+    last_name VARCHAR(255),
+    job_title VARCHAR(255),
+    manager_id TINYINT
+);
+
+INSERT INTO memory.default.employee (employee_id, first_name, last_name, job_title, manager_id) VALUES
+(1, 'Ian', 'James', 'CEO', 4),
+(2, 'Umberto', 'Torrielli', 'CSO', 1),
+(3, 'Alex', 'Jacobson', 'MD EMEA', 2),
+(4, 'Darren', 'Poynton', 'CFO', 2),
+(5, 'Tim', 'Beard', 'MD APAC', 2),
+(6, 'Gemma', 'Dodd', 'COS', 1),
+(7, 'Lisa', 'Platten', 'CHR', 6),
+(8, 'Stefano', 'Camisaca', 'GM Activation', 2),
+(9, 'Andrea', 'Ghibaudi', 'MD NAM', 2);
+

create_expenses.sql

@@ -0,0 +1,21 @@
+CREATE TABLE memory.default.sexi_expense (
+    employee_id TINYINT,
+    unit_price DECIMAL(8, 2),
+    quantity TINYINT
+);
+
+INSERT INTO memory.default.sexi_expense (employee_id, unit_price, quantity)
+SELECT e.employee_id, v.unit_price, v.quantity
+FROM (
+  VALUES
+    ('Alex','Jacobson',  6.50, 14),
+    ('Alex','Jacobson', 11.00, 20),
+    ('Alex','Jacobson', 22.00, 18),
+    ('Alex','Jacobson', 13.00, 75),
+    ('Andrea','Ghibaudi',300.00, 1),
+    ('Darren','Poynton', 40.00,  9),
+    ('Umberto','Torrielli',17.50, 4)
+) AS v(first_name, last_name, unit_price, quantity)
+JOIN memory.default.employee e
+  ON e.first_name = v.first_name
+ AND e.last_name  = v.last_name;

create_invoices.sql

@@ -0,0 +1,27 @@
+CREATE TABLE memory.default.sexi_invoice (
+    supplier_id TINYINT,
+    invoice_amount DECIMAL(8, 2),
+    due_date DATE
+);
+
+CREATE TABLE memory.default.sexi_supplier (
+    supplier_id TINYINT,
+    name VARCHAR
+);
+
+INSERT INTO memory.default.sexi_invoice (supplier_id, invoice_amount, due_date) VALUES
+(5, 6000.00, DATE '2026-01-31'),
+(1, 2000.00, DATE '2025-12-31'),
+(1, 1500.00, DATE '2026-01-31'),
+(2, 500.00, DATE '2025-11-30'),
+(3, 6000.00, DATE '2026-01-31'),
+(4, 4000.00, DATE '2026-04-30');
+
+
+
+INSERT INTO memory.default.sexi_supplier (supplier_id, name) VALUES
+(1, 'Catering Plus'),
+(2, 'Dave''s Discos'),
+(3, 'Entertainment tonight'),
+(4, 'Ice Ice Baby'),
+(5, 'Party Animals');

find_manager_cycles.sql

@@ -0,0 +1,24 @@
+WITH RECURSIVE manager_path(employee_id, manager_id, path) AS (
+    SELECT
+        employee_id,
+        manager_id,
+        ARRAY[employee_id] AS path
+    FROM memory.default.employee
+
+    UNION ALL
+
+    SELECT
+        e.employee_id,
+        m.manager_id,
+        path || m.manager_id
+    FROM manager_path e
+    JOIN memory.default.employee m
+        ON e.manager_id = m.employee_id
+    WHERE m.manager_id IS NOT NULL
+      AND NOT contains(e.path, m.manager_id)
+)
+SELECT
+    employee_id,
+    path
+FROM manager_path
+WHERE contains(path, manager_id);

generate_supplier_payment_plans.sql

@@ -0,0 +1,46 @@
+WITH months AS (
+    SELECT date_trunc('month', date_add('month', seq, current_date)) + INTERVAL '1' MONTH - INTERVAL '1' day AS payment_date
+    FROM UNNEST(sequence(0, date_diff('month', date_trunc('month', current_date), date_trunc('month', (SELECT max(due_date) FROM memory.default.sexi_invoice))))) AS t(seq)
+),
+invoice_payments AS (
+    SELECT
+        i.supplier_id,
+        i.invoice_amount,
+        i.due_date,
+        months.payment_date,
+        date_trunc('month', current_date) + INTERVAL '1' MONTH - INTERVAL '1' day AS first_payment_date,
+        date_diff('month', date_trunc('month', current_date) + INTERVAL '1' MONTH - INTERVAL '1' day, i.due_date) + 1 AS total_months,
+        CASE
+            WHEN months.payment_date <= i.due_date AND months.payment_date >= (date_trunc('month', current_date) + INTERVAL '1' MONTH - INTERVAL '1' day)
+            THEN i.invoice_amount / (date_diff('month', date_trunc('month', current_date) + INTERVAL '1' MONTH - INTERVAL '1' day, i.due_date) + 1)
+            ELSE 0
+        END AS monthly_payment
+    FROM memory.default.sexi_invoice i
+    CROSS JOIN months
+),
+supplier_monthly_payments AS (
+    SELECT
+        supplier_id,
+        payment_date,
+        SUM(monthly_payment) AS payment_amount
+    FROM invoice_payments
+    WHERE monthly_payment > 0
+    GROUP BY supplier_id, payment_date
+),
+supplier_balances AS (
+    SELECT supplier_id, SUM(invoice_amount) AS balance_outstanding
+    FROM memory.default.sexi_invoice
+    GROUP BY supplier_id
+)
+
+SELECT
+    s.supplier_id,
+    sp.name AS supplier_name,
+    smp.payment_amount,
+    sb.balance_outstanding,
+    smp.payment_date
+FROM supplier_monthly_payments smp
+JOIN supplier_balances sb ON smp.supplier_id = sb.supplier_id
+JOIN memory.default.sexi_supplier sp ON sp.supplier_id = smp.supplier_id
+JOIN (SELECT DISTINCT supplier_id FROM memory.default.sexi_invoice) s ON s.supplier_id = smp.supplier_id
+ORDER BY s.supplier_id, smp.payment_date;