CREATE TABLE authors (
    id BIGINT IDENTITY(1,1) PRIMARY KEY,
    name NVARCHAR(100) NOT NULL,
    bio NVARCHAR(MAX)
);

CREATE TABLE books (
    id BIGINT IDENTITY(1,1) PRIMARY KEY,
    author_id BIGINT NOT NULL,
    title NVARCHAR(200) NOT NULL,
    price DECIMAL(10,2)
);