單項選擇題

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.

你可能感興趣的試題

單項選擇題

You need to create a partitioned table to store historical data and you issued the following command：
CREATE TABLE purchase_interval PARTITION BY RANGE （time_id） INTERVAL
（NUMTOYMINTERVAL（1，’month’）） STORE IN （tbs1，tbs2，tbs3）（ PARTITION p1 VALUES LESS THAN（TO_DATE（’1-1-2005’， ’dd-mm-yyyy’））， PARTITION p2 VALUES
LESS THAN（TO_DATE（’1-1- 2007’， ’dd-mm-yyyy’）））
AS SELECT * FROM purchases WHERE time_id < TO_DATE（’1-1-2007’，’dd-mm-yyyy’）；
What is the outcome of the above command？（）

A. It returns an error because the range partitions P1 and P2 should be of the same range.
B. It creates two range partitions （P1， P2）. Within each range partition， it creates monthwise subpartitions.
C. It creates two range partitions of varying range. For data beyond ’1-1-2007，’ it creates partitions with a width of one month each.
D. It returns an error because the number of tablespaces （TBS1，TBS2，TBS3）specified does not match the number of range partitions （P1，P2） specified.

多項選擇題

You are managing a 24*7 database. The backup strategy for the database is to perform user-managedbackups.Identify two prerequisites to perform the backups. (Choose two.)（）

A. The database must be opened in restricted mode.
B. The database must be configured to run in ARCHIVELOG mode.
C. The tablespaces are required to be in backup mode before taking the backup.
D. The tablespaces are required to be in read-only mode before taking the backup

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

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?（）

你可能感興趣的試題

You are managing a 24*7 database. The backup strategy for the database is to perform user-managedbackups.Identify two prerequisites to perform the backups. (Choose two.)（）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

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?（）