Ardışık Gün Harcama Serisi

Şema

CREATE TABLE transactions (
  tx_id INTEGER PRIMARY KEY,
  user_id INTEGER NOT NULL,
  tx_date TEXT NOT NULL,
  amount REAL NOT NULL
);

INSERT INTO transactions (tx_id, user_id, tx_date, amount) VALUES
  (1, 1, '2025-05-01', 50),
  (2, 1, '2025-05-01', 20),
  (3, 1, '2025-05-02', 30),
  (4, 1, '2025-05-03', 40),
  (5, 1, '2025-05-04', 25),
  (6, 2, '2025-05-01', 60),
  (7, 2, '2025-05-03', 15),
  (8, 2, '2025-05-04', 45),
  (9, 2, '2025-05-05', 35),
  (10, 3, '2025-05-01', 100),
  (11, 3, '2025-05-02', 80);