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單項選擇題

Which statements listed below describe the data dictionary views（）
1） These are stored in the SYSTEM tablespace.
2） These are the based on the virtual tables.
3） These are owned by the SYS user.
4） These can be queried by a normal user only if O7_DICTIONARY_ACCESSIBILTY parameter is set to TRUE.
5） The V$FIXED_TABLE view can be queried to list the names of these views.

A.1 and 3
B.2， 3， and 5
C.1， 2， and 3
D.2， 3， 4， and 5

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多項選擇題

You plan to move data from a flat file to a table in your database. You decide to use SQL*Loader direct pathload method to perform this task. The table in which you plan to load data is an important table having variousintegrity constraints defined on it.
Which constraints will remain enabled by default during this operation（）

A.CHECK
B.UNIQUE
C.NOT NULL
D.PRIMARY KEY
E.FOREIGN KEY

單項選擇題

Observe the information in the columns：
1. The SGA a. Text and parsed forms of all SQL statements
2. The cursor state b. Run-time memory values for the SQL statement， such as rows retrieved
3. User-session data c. Security and resource usage information
4. The stack space d. Local variables for the process
Which option has the correct match between the memory areas and their contents（）

A.1-c， 2-b， 3-d， 4-a
B.1-b， 2-c， 3-d， 4-a
C.1-a， 2-b， 3-c， 4-d
D.1-a， 2-b， 3-d， 4-c