A database is stored in an Automatic Storage Management (ASM) disk group, disk group, DGROUP1 with SQL:There is enough free space in the disk group for mirroring to be done.What happens if the CONTROLLER1 failure group becomes unavailable due to error of for maintenance?
On your Oracle 12c database, you Issue the following commands to create indexesSQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE;SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id);Which two statements are correct? (Choose two.)
Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3.Which two RMAN commands may be; used to back up only the PDB1 pluggable database? (Choose two.)
Identify three benefits of Unified Auditing.
You upgraded from a previous Oracle database version to Oracle Database version to Oracle Database 12c. Your database supports a mixed workload. During the day, lots of insert, update, and delete operations are performed. At night, Extract, Transform, Load (ETL) and batch reporting jobs are run. The ETL jobs perform certain database operations using two or more concurrent sessions.After the upgrade, you notice that the performance of ETL jobs has degraded. To ascertain the cause of performance degradation, you want to collect basic statistics such as the level of parallelism, total database time, and the number of I/O requests for the ETL jobs.How do you accomplish this?
Examine the parameters for your database instance:You execute the following command:SQL> ALTER TABLESPACE undotbs1 RETENTION NOGUARANTEE;Which statement is true in this scenario?
