Which table organization or type would provide the best performance for this hybrid workload?

What must you run to receive recommendations on the efficient use of indexes and materialized views to improve query performance? 

CONNECT /AS SYSDBA 

ALTER SYSTEM SET THREADED EXECUTION= TRUE SCOPE=SPFILE; 

SHUTDOWN IMMEDIATE 

You then restart the instance and get an error: 

STARTUP 

ORA-01031: insufficient privileges 

Why does the startup command return the error shown? 

You want to create a test database from the production database and allow the production database to remain open during the duplicate process. You restore the database backups to a new host with the same directory structure as the production database and want to use the recovery catalog for future backups after the database is successfully restored to the new host. 

How would you achieve this? 

This consumes a lot of undo tablespace and is affecting undo retention. 

Which two actions would you take to solve this problem?

What could be the reason for this?

Which method would you use to recover the datafile? 

SQL> DROP TABLE EMPLOYEE; 

SQL> SELECT object_name AS recycle_name, original_name, type FROM recyclebin; 

RECYCLE_NAME ORIGINAL_NAME TYPE 

-------------------------------------------------------------------------------------------------------------- 

binsgk31sj/3akk5hg3j21kl5j3d==$$0 EMPLOYEE TABLE 

You then successfully execute the command: 

SQL> FLASHBACK TABLE "BINSgk31sj/3akk5hg3j21kl5j3d==$$0" TO BEFORE DROP; 

Which two statements are true?

During this operation, you want to ensure the following: 

i. Long-running queries are not affected. 

ii. No extra space is used. 

iii. Data manipulation language (DML) operations on the table succeed at all times throughout 

the process.

iv. Unused space is reclaimed both above and below the high water mark. 

Which alter TABLE option would you recommend? 

Which two backup solutions can be used? 

Which three methods can do this? 

SQL>RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL; 

In which two scenarios is this command required?

1. Automatically bulk load data from a flat file. 

2. Rebuild indexes on the SALES table after completion of the bulk load. 

How would you create these jobs? 

Identify two ways to access a pluggable database (PDB) that is open in read-only mode. 

Which two tasks should you perform before enabling Flashback Database?