OCP-1Z0-053-200题-93题-669
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QUESTION 93
User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, which
commands must you execute to enable SCOTT to flash back the transactions? (Choose four.)
A. ALTER DATABASE FLASHBACK ON;
B. GRANT SELECT any transaction TO scott;
C. GRANT EXECUTE ON dbms_flashback TO scott;
D. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
E. ALTER TABLESPACE undots1 RETENTION GUARANTEE;
F. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS;
Answer: BCDF
同669题:http://blog.csdn.net/rlhua/article/details/12431215
Explanation/Reference:
Section: Flashback Operations & Configuration
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