多項選擇題

Your multitenant container database (CDB) contains three pluggable database (PDBs). You find that the control file is damaged. You plan to use RMAN to recover the control file. There are no startup triggers associated with the PDBs.
Which three steps should you perform to recover the control file and make the database fully operational?（）

A. Mount the container database (CDB) and restore the control file from the control file auto backup.
B. Recover and open the CDB in NORMAL mode.
C. Mount the CDB and then recover and open the database, with the RESETLOGS option.
D. Open all the pluggable databases.
E. Recover each pluggable database.
F. Start the database instance in the nomount stage and restore the control file from control file auto backup.

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單項選擇題

Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?（）

A. None of the data definition language (DDL) statements are logged in the trace file.
B. Only DDL commands that resulted in errors are logged in the alert log file.
C. A new log.xml file that contains the DDL statements is created, and the DDL command details are removed from the alert log file.
D. Only DDL commands that resulted in the creation of new database files are logged.

多項選擇題

Which three functions are performed by the SQL Tuning Advisor?（）

A. Building and implementing SQL profiles
B. Recommending the optimization of materialized views
C. Checking query objects for missing and stale statistics
D. Recommending bitmap, function-based, and B-tree indexes
E. Recommending the restructuring of SQL queries that are using bad plans

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你可能感興趣的試題

Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?（）

Which three functions are performed by the SQL Tuning Advisor?（）

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