单选题You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace: ALTER TABLE employees SHRINK SPACE CASCADE; Which statement is correct in this scenario?（）A The data in the segment will be compacted but t

第1题：

You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table？（）

• A、 You must enable the block change tracking feature.
• B、 You must have enable the flashback feature.
• C、 You must use the OMF in your database.
• D、 You must define the tablespace of the SCOTT.EMP table for automatic segment space management.

第2题：

You created the DEPT table by using the following command：   CREATE TABLE scott.dept   （deptno NUMBER（3），   dname VARCHAR2（15），   loc VARCHAR2（15） ）   STORAGE （INITIAL 100K NEXT 50K  MAXEXTENTS 10 PCTINCREASE 5  FREELIST GROUPS 6 FREELISTS 4）；You are required to shrink the DEPT table. While performing the shrink operation， you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table？（）

• A、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT； statement.
• B、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE； statement.
• C、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE； statement.
• D、 You cannot shrink the SCOTT.EMP table.

第3题：

第4题：

You use the segment advisor to help determine objects for which space may be reclaimed. Which three statements are true about the advisor given by the segment advisor?（）

• A、It may advise the use of online table redefinition for tables in dictionary managed tablespace.
• B、It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows.
• C、It may advise the use of online table redefinition for tables in locally managed tablespaces
• D、It will detect and advise about chained rows.
• E、It may advise the use of segment shrink for free list managed tables.

第5题：

When shrinking a table segment， you choose to shrink all the indexes for that table using the SHRINK SPACE command. Which clause should you use？（）

• A、 INCLUDING DEPENDENCIES
• B、 INCLUDING DEPENDENCIES CASCADE
• C、 COMPACT
• D、 CASCADE
• E、 None of the above

第6题：

Examine the following commands executed in your database： SQL> ALTER SESSION RECYCLEBIN=ON； Session altered  SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees；  Table created.  Further， you executed the following command to drop the table：  SQL> DROP TABLE emp； Table dropped.  What happens in this scenario？ （）

• A、The table is moved to the SYSAUX tablespace.
• B、The table is moved to the SYSTEM tablespace.
• C、The table is removed from the database permanently.
• D、The table is renamed and remains in the TBSFD tablespace.

第7题：

In one of your online transaction processing （OLTP） applications， users are manipulating and querying a database table simultaneously. From the Segment Advisor， you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries.  Which option would you use with the ALTER TABLE command to achieve this objective？（）

• A、REBUILD
• B、CASCADE
• C、TRUNCATE
• D、ROW MOVEMENT
• E、SHRINK SPACE COMPACT
• F、SHRINK SPACE CASCADE

第8题：

第9题：

Examine the following command：   SQL> ALTER TABLE booking SHRINK SPACE COMPACT；   Which activity is performed when the preceding command is executed？（）

• A、 The shrink operation touches every block in the BOOKING table
• B、 The high-water mark （HWM） for the BOOKING table is shifted from its original position
• C、 The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table
• D、 The data manipulation language （DML） triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operation

第10题：

You work as a database administrator for Certkiller .com. Because of space constraints， you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows：  ERROR at Line 1：  ORA-10635： Invalid segment ortablespacetype What could be the reason？（）

• A、The table is partitioned
• B、The table name is wrong.
• C、It is an index-Organized table （IOT）
• D、The table is stored in locally managedtablespace.
• E、The table is stored in atablespacewhere segment space is managed manually.