CREATE TABLE COURS (CNO CHAR(6) NOT NULL, LHOUR SMALLINT NOT NULL, CREDIT DEC(1,0) NOT NULL. SEMESTER CHAR(2)NOT NULL, PRIMARY KEY(CNO)); ⚫ CREATE TABLE COURS (CNO CHAR(6) NOT NULL, LHOUR SMALLINT NOT NULL, CREDIT DEC(1,0) NOT NULL, SEMESTER CHAR(2) NOT NULL, PRIMARY KEY(CNO));