在客户定单表(CUSTOMER)中有一列为单价(PRICE),写一个SELECT命令显示单价在500以上的查询语句
A.SELECT * FROM CUSTOMER WHERE PRICE>500; B.SELECT * FROM CUSTOMER WHERE PRICE BETWEEN 500 AND *; C.SELECT * FROM CUSTOMER WHERE PRICE LIKE '%500%'; D.SELECT * FROM CUSTOMER WHERE PRICE>=500;正确答案A