假如只想显示视图:EMPLOYEE_HIST的名字、视图的定义和视图定义的长度,请问应该使用以下SQL语句中的哪一个
A.SELECT
*
FROM
user_views
WHERE
view_name=’EMPLOYEE_HIST’;
B.SELECT
view_name, text, text_length
FROM
user_views
WHERE
view_name=’EMPLOYEE_HIST’;
C.SELECT
view_name, text, text_length
FROM VIEW
user_obiects
WHERE
view_name=’EMPLOYEE_HIST’;
D.SELECT VIEW
view_name, text, text_length
FROM
all_objects
WHERE
view_name=’EMPLOYEE_HIST’;