多項(xiàng)選擇題

Which three statements are true regarding the use of the Database Migration Assistant for Unicode(DMU)?（）

A. A DBA can check specific tables with the DMU
B. The database to be migrated must be opened read-only.
C. The release of the database to be converted can be any release since 9.2.0.8.
D. The DMU can report columns that are too long in the converted characterset.
E. The DMU can report columns that are not represented in the converted characterset.

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多項(xiàng)選擇題

You create a table with the PERIOD FOR clause to enable the use of the Temporal Validity feature of Oracle Database 12c. Examine the table definition:
Which three statements are true concerning the use of the Valid Time Temporal feature for the EMPLOYEES table?（）

A. The valid time columns employee_time_start and employee_time_end are automatically created.
B. The same statement may filter on both transaction time and valid temporal time by using the AS OF TIMESTAMP and PERIOD FOR clauses.
C. The valid time columns are not populated by the Oracle Server automatically.
D. The valid time columns are visible by default when the table is described.
E. Setting the session valid time using DBMS_FLASHBACK_ARCHIVE.ENABLE_AT_VALID_TIME sets the visibility for data manipulatio

多項(xiàng)選擇題

Which three activities are supported by the Data Recovery Advisor?（）

A. Advising on block checksum failures
B. Advising on inaccessible control files
C. Advising on inaccessible block change tracking files
D. Advising on empty password files
E. Advising on invalid block header field values

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Which three statements are true regarding the use of the Database Migration Assistant for Unicode(DMU)?（）

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You create a table with the PERIOD FOR clause to enable the use of the Temporal Validity feature of Oracle Database 12c. Examine the table definition: Which three statements are true concerning the use of the Valid Time Temporal feature for the EMPLOYEES table?（）

Which three activities are supported by the Data Recovery Advisor?（）

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You create a table with the PERIOD FOR clause to enable the use of the Temporal Validity feature of Oracle Database 12c. Examine the table definition:
Which three statements are true concerning the use of the Valid Time Temporal feature for the EMPLOYEES table?（）