多項(xiàng)選擇題

The EMP table exists in your schema. You want to execute the following query:
SELECT ename, sal
FROM emp
AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE)
WHERE ename = 'ALLEN';
What are the minimum requirements for the statement to execute successfully? （）

A. ARCHIVELOG mode must be enabled
B. Row Movement must be enabled for the table
C. FLASHBACK must be set to ON for the database
D. The UNDO_MANAGEMENT parameter must be set to AUTO
E. The UNDO_RETENTION parameter must be set appropriately

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單項(xiàng)選擇題

You have three temporary tablespace groups named G1, G2, and G3 in your database. You are creating a new temporary tablespace as follows:
CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE '/u1/data/temp1.dbf' SIZE 10M
TABLESPACE GROUP '';
Which statement regarding the above command is correct?（）

A. It will create the tablespace TEMP1 in group G1.
B. It will create the tablespace TEMP1 in group G3.
C. It will not add the tablespace TEMP1 to any group.
D. It will create the tablespace TEMP1 in the default group.

多項(xiàng)選擇題

On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）

A. fixed tables
B. heap tables
C. external tables
D. temporary tables
E. Index-Organized Tables (IOTs)

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The EMP table exists in your schema. You want to execute the following query: SELECT ename, sal FROM emp AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE) WHERE ename = 'ALLEN'; What are the minimum requirements for the statement to execute successfully? （）

你可能感興趣的試題

You have three temporary tablespace groups named G1, G2, and G3 in your database. You are creating a new temporary tablespace as follows: CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE '/u1/data/temp1.dbf' SIZE 10M TABLESPACE GROUP ''; Which statement regarding the above command is correct?（）

On which two database objects can the VERSIONS clause of the Flashback Versions Query be used?（）

The EMP table exists in your schema. You want to execute the following query:
SELECT ename, sal
FROM emp
AS OF TIMESTAMP (SYSTIMESTAMP - INTERVAL '6' MINUTE)
WHERE ename = 'ALLEN';
What are the minimum requirements for the statement to execute successfully? （）

You have three temporary tablespace groups named G1, G2, and G3 in your database. You are creating a new temporary tablespace as follows:
CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE '/u1/data/temp1.dbf' SIZE 10M
TABLESPACE GROUP '';
Which statement regarding the above command is correct?（）