PostgreSQL练习 建表 --department(dNo,dName,officeRoom,homepage) --student(sNo,sName,sex,age,dNo) --course(cNo,cName,cPNo,credit,dNo) --sc(sNo,cNo,score,recordDate) CREATE TABLE department( dNo CHAR(2) NOT NULL UNIQUE, dName VARCHAR(20), officeRoom VARCHAR(40), homePag
