查询出EMP表中1982年及以后入职的员工信息()(注:字段hiredate为入职日期,数据类型为DATE型)
A.select * from emp where hiredateu003e='19820101'; B.select * from emp where hiredateu003e=to_char('19820101','YYYYMMDD'); C.select * from emp where to_date(hiredate,'YYYYMMDD')u003e='19820101'; D.select * from emp where to_char(hiredate,'YYYYMMDD')u003e='19820101';