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Oracle认证考试

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You execute this command to drop the ITEM table, which has the primary key referred in the ORDERS table:SQL> DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;  Which two statements are true about theeffect of the command()

  • A、No flashback is possible to bring back the ITEM table.
  • B、The ORDERS table is dropped along with the ITEM table.
  • C、The dependent referential integrity constraints in the ORDERS table are disabled.
  • D、The dependent referential integrity constraints in the ORDERS table are removed.
  • E、The table definition of the ITEM table and associated indexes are placed in the recycle bin
正确答案:A,D
答案解析:
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