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CREATE TABLE bolumler ( bolum_id INT PRIMARY KEY, bolum_adi VARCHAR(100) ); CREATE TABLE ogrenciler ( ogrenci_id INT PRIMARY KEY, ad VARCHAR(50), soyad VARCHAR(50), dogum_yili INT, bolum_id INT, FOREIGN KEY (bolum_id) REFERENCES bolumler(bolum_id) ); CREATE TABLE dersler ( ders_id INT PRIMARY KEY, ders_adi VARCHAR(100), kredi INT ); CREATE TABLE notlar ( ogrenci_id INT, ders_id INT, notu INT, PRIMARY KEY (ogrenci_id, ders_id), FOREIGN KEY (ogrenci_id) REFERENCES ogrenciler(ogrenci_id), FOREIGN KEY (ders_id) REFERENCES dersler(ders_id) );

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