单选题
View the Exhibits.
You performed operations on the DEPT4 table as shown in the Exhibit. When you perform the FlashbackVersions Query， you find that the first two updates are not listed. What could be the reason？（） AThe row movement is not enabled on the table.
BThe first two updates were not explicitly committed.
CThe Flashback Versions Query lists only the most recent update.
DThe Flashback Versions Query stops producing rows after it encounters a time in the past when the table structure was changed.
正确答案
答案解析
略
相似试题
View the Exhibit. Which statements are true regarding the USERS tablespace（）
多选题查看答案
View the Exhibit and identify the component marked with a question mark. （）
单选题查看答案
View the Exhibit and identify the component marked with a question mark.（）
单选题查看答案
View the Exhibit and examine the output of the query. What do you infer from this（）
单选题查看答案
View the Exhibit and examine the output of the query. What do you infer from this（）
单选题查看答案
View the Exhibit and examine the structure of the ORDERS table. Which task would require subqueries？ （）
单选题查看答案
View the Exhibit and examine the output. Which two statements are true regarding the LISTENER2 listener（）
多选题查看答案
View the Exhibit to examine the output for the CROSSCHECK BACKUP command. Which statement is trueabout the output of the command（）
单选题查看答案
View the Exhibit and examine the output. Which two statements are true regarding the LISTENER2 listener（）
多选题查看答案
View the Exhibit to examine the details for an incident. Which statement is true regarding the status of the incident（）
单选题查看答案