1Z0-053單項選擇題每日一練(2019.01.24)

You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process，you execute the following script：  
SQL>@utlu111i.sql  
Which statement about the execution of this script is true？（）

Consider the following code snippet：  
BEGIN 
DBMS_SCHEDULER.SET_ATTRIBUTE （ name => ，，lne_job1， attribute => ，，job_priority， value => 1）； 
END； 
/  
If this code were executed， which of the following statements would be true？（）

You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1：  
DROP FLASHBACK ARCHIVE fla1；  
What is the effect of this command？（）