单项选择题 You discover that your Recycle Bin contains two tables with the same name， MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement：   FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2；   What will be the result of executing this statement？（）

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？（）