aCREATE TABLE Customer (
    id INT PRIMARY KEY,
    name VARCHAR(100),
    phn_number VARCHAR(20)
);

CREATE TABLE Account (
    acc_no INT PRIMARY KEY,
    balance DECIMAL(10, 2),
    branch VARCHAR(100)
);

CREATE TABLE Deposit (
    id INT PRIMARY KEY,
    acc_no INT,
    date DATE,
    FOREIGN KEY (acc_no) REFERENCES Account(acc_no)
);