单项选择题
A. One of the tables is recovered from the Recycle Bin using a First In First Out （FIFO） approach.
B. One of the tables is recovered from the Recycle Bin using a Last In First Out （LIFO） approach.
C. Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.
D. None of the tables are recovered from the Recycle Bin， and the statement returns an error.
单项选择题 Following is the list of locations in random order where oranfstab can be placed. 1./etc/mtab 2.$ORACLE_HOME/dbs/oranfstab 3./etc/oranfstab What is the sequence in which Direct NFS will search the locations？（）
单项选择题 Evaluate the following function code： CREATE FUNCTION get_dept_avg（dept_id NUMBER） RETURN NUMBER RESULT_CACHE RELIES_ON （EMPLOYEES） IS avgsal NUMBER（6）； BEGIN SELECT AVG（SALARY）INTO avgsal FROM EMPLOYEES WHERE DEPARTMENT_ID = dept_id； RETURN avgsal； END get_dept_avg； Which statement is true regarding the above function？（）
单项选择题 You want to use RMAN to create compressed backups. Which statement is true about the compression algorithms that RMAN can use？（）