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Which two statements are correct regarding the Oracle Flashback Drop feature？ （）
A: Recycle bin exists for the tables only in non-SYSTEM， locally managed tablespaces.
B: You can flash back a dropped table provided row movement has been enabled on the table.
C: If you drop an index before dropping its associated table， then the recovery of the index is not supported when you flash back the dropped table.
D: When you execute the DROP TABLESPACE？ INCLUDING CONTENTS command， the objects in the tablespace are places in the recycle bin.
E: When a dropped table is moved to the recycle bin， only the table is renamed to a system-generated name； its associated objects and constraints are not renamed.
F: If you drop a table that is protected by the recycle bin， then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

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出自：Oracle认证

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