Oracle 11G OCP 1Z0-053 130

（130）Which are the prerequisites for performing flashback transactions on your database?(Choose all that apply.)

A. Undo retention guarantee for the database must be configured.

B. Supplemental log must be enabled for the primary key.

C. Supplemental log must be enabled.

D. Execute permission on the DBMS_FLASHBACK package must be granted to the user.

答案：（B、C、D）

解析：

A（X），資料來自於日誌挖掘，而不是undo

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