试题详情
- 单项选择题 Examine the following commands and their output:
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.
- B
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