设函数f（t)连续，则二次积分

s the following error message:Which is the recommended sequence of operations you need to perform for the query successfully？（）

A. Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace.

B. Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online.

C. Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.

D. Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.

A、Gastric adenocarcinoma

B、Granulomatous inflammation

C、Chronic atrophic gastritis

D、Acute gastritis

The South and West have experienced a continuous loss of population to the North.

A．Y

B．N

C．NG

You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature？（）

A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING

B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE

C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE

D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING

A. BACKUP PLUGGABLE DATABASE PDB1 while connected to the root container

B. BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container

C. BACKUP DATABASE while connected to the PDB1 container

D. BACKUP DATABASE while connected to the boot container

E. BACKUP PLUGGABLE database PDB1 while connected to PDB2

USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available.Which three files would be used in the user-managed recovery process performed by the database administrator （）(DBA)？ (Choose Three)

A. Redo logs

B. Control file

C. The latest backup of only the damaged data file

D. The latest backup of all the data file in the USERS tablespace

E. Temporary files of temporary tablespace

F. Archive Logs since the latest backup to point of failure

USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)？（）

A. Redo logs

B. Control file

C. The latest backup of only the damaged data file

D. The latest backup of all the data file in the USERS tablespace

E. Temporary files of temporary tablespace

F. Archive Logs since the latest backup to point of failure

You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature？（）

A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;

B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;

C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;

D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;

Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the HR_PDB. You execute the following command:SQL > CREATE UNDO TABLESPACE undotb01 DATAFILE ‘u01/oracle/rddb1/undotbs01.dbf’ SIZE 60M AUTOEXTEND ON;What is the result？（）

A. It executes successfully and creates an UNDO tablespace in hr_pdb.

B. It falls and reports an error because there can be only one undo tablespace in a cdb.

C. It fails and reports an error because the CONTAINER=ALL clause is not specified in the command.

D. It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the command.

E. It executes successfully but neither tablespace nor the data file is created.