You made changes to the COMPUTE_TAX function inside the EMP_ADMIN package body. 
Whichstatement is true after you recompile the EMP_ADMIN package body（）

User SCOTT wants to perform a bulk insert operation in the EMP_DEP table. SCOTT receives thefollowing error after the INSERT statement is issued and few rows are inserted： INSERT INTO EMP_DEP （emp_id，name，salary，dep_name，mgr_id） * 
ERROR at line 1： 
ORA-01653： unable to extend table SCOTT.EMP_DEP by 128 in tablespace USERS Identify two actions either of which will help you resolve this problem.（）

The TRANS_SUMMARY table contains product-wise transaction details that get updated with everytransaction in the system. Each row has cumulative transaction details of a single product and everyproduct is identified by a product code， which is the primary key. 
As part of the archival process， the company wants to transfer the rows in the TRANS_SUMMARY tableto the TRANS_SUMMARY_DUP table at the end of every quarter of the year. Along with existing products，the company deals with many new products during every quarter. 
Which method is best suited for this quarterly data transfer（）

All the database users are presently connected to the database instance and working. The HR userhas opened three database sessions and executed the following command in one of his sessions： SQL> UPDATE persons SET ccode=’U031’ WHERE ccode=’U029’； 123 rows updated. 
SQL> DELETE FROM persons WHERE exp=’Y’； 3 rows deleted. 
The SYS user opens a new session after HR executed the above commands. 
Which sessions can seethe effect of the UPDATE and DELETE commands （）