OCP-1Z0-053-200题-29题-609

QUESTION 29

Examine the following commands and their output:

SQL> SELECT ename, sal FROM emp WHERE ename='JAMES';

ENAME SAL

JAMES 1050

SQL> UPDATE emp SET sal=sal+sal*1.2 WHERE ename='JAMES';

1 row updated.

SQL> SELECT ename, sal FROM emp WHERE ename='JAMES';

ENAME SAL

JAMES 2310

View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.



What could be the possible cause for the query not displaying any row?

A. Flashback logging is not enabled for the database.

B. The changes made to the table are not committed.

C. Supplemental logging is not enabled for the database.

D. The database is not configured in ARCHIVELOG mode.

Answer: B

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Explanation/Reference:

Section: Flashback Operations & Configuration