INSERT INTO buku VALUES
('1', 'Matematika Diskrit', 'Muhammad', 'Cahya Pustaka', 10),
('2', 'SBDL', 'Haydar', 'Cahya Pustaka', 20);
SELECT * FROM buku;

INSERT INTO petugas VALUES
('10', 'Muhammad', 'Sleman'),
('11', 'Haydar', 'Jogja');
SELECT * FROM petugas;

INSERT INTO pelanggan VALUES
('30', 'Muhammad', 'Sinduadi'),
('31', 'Haydar', 'Mlati');
SELECT * FROM pelanggan;

INSERT INTO pembelian VALUES
('50', '10', '30', '2020-02-21', 100000, 10),
('51', '11', '31', '2000-07-17', 200000, 20);
SELECT * FROM pembelian;

INSERT INTO detailpembelian VALUES
('70', '50', '1', 100),
('71', '51', '2', 200);
SELECT * FROM detailpembelian;