Which four database objects never have any segments?

A)A partitioned index

B)A view selecting from a populated table

C)An empty index

D)An Oracle Loader type external table

E)An empty table

F)A view selecting from an empty table

G)An Oracle Data Pump type external table

Answer: BDFG

赵：视图和外部表不存在段。

B 译：从填充表中选择的视图。

×××：

B F 视图是虚拟对象，不占用物理空间(物化视图例外)

G D 外部表不占用数据库空间