View the exhibit and examine the TRANS table‘s storage information.After a massive delete operation, you executed the following statement to shrink the TRANS table:SQL ALTER TABLE trans SHRINK SPACE CASCADE;Which statement describes the outcome of the command?（）A. An error is produced.B. The table and all related objects are compacted and the position of the high-water mark (HWM) for the table is adjustedC. The table and related indexes are compacted but the position of the high-water mark (HWM) for the table remains unchangedD. The unused space in the table is reclaimed and returned to the tablespace and the data manipulation language (DML) triggers on the table are fired during the shrinking process
View the exhibit and examine the TRANS table‘s storage information.After a massive delete operation, you executed the following statement to shrink the TRANS table:SQL> ALTER TABLE trans SHRINK SPACE CASCADE;Which statement describes the outcome of the command?（）
A. An error is produced.
B. The table and all related objects are compacted and the position of the high-water mark (HWM) for the table is adjusted
C. The table and related indexes are compacted but the position of the high-water mark (HWM) for the table remains unchanged
D. The unused space in the table is reclaimed and returned to the tablespace and the data manipulation language (DML) triggers on the table are fired during the shrinking process
相关考题：
Whichtwocodefragments,insertedindependentlyatline3,generatetheoutput4247?() A.Strings=123456789；s=（s-123）.replace（1，3，24）-89；B.StringBuffers=newStringBuffer（123456789）；s.delete（0，3）.replace（1，3，24）.delete（4，6）；C.StringBuffers=newStringBuffer（123456789）；s.substring（3，6）.delete（1，3）.insert（1，24）；D.StringBuilders=newStringBuilder（123456789）；s.substring（3，6）.delete（1，2）.insert（1，24）；E.StringBuilders=newStringBuilder（123456789）；s.delete（0，3）.delete（1，3）.delete（2，5）.insert（1，24）；
publicclassTestString3{publicstaticvoidmain(String[]args){／／insertcodehereSystem.out.println(s);}}Whichtwocodefragments,insertedindependentlyatline3,generatetheoutput4247?() A.Strings=“123456789”；s=（s-”123”）.replace（1，3，”24”）-“89”；B.StringBuffers=newStringBuffer（”123456789”）；s.delete（0，3）.replace（1，3，“24”）.delete（4，6）；C.StringBuffers=newStringBuffer（”123456789”）；s.substring（3，6）.delete（1，3）.insert（1，“24”）；D.StringBuilders=newStringBuilder（”123456789”）；s.substring（3，6）.delete（1，2）.insert（1，“24”）；E.StringBuilders=newStringBuilder（”123456789”）；s.delete（0，3）.delete（1，3）.delete（2，5）.insert（1，“24”）；
（ 22 ）如果只允许学生查看自己所选课程的信息和分数，则 DBA 应创建相应的A ）视图（ View ）B ）索引（ Index ）C) 游标（ Cursor ）D ）基本表（ Table ）
【单选题】对于建立在数据库上的DDL触发器，常用的激活DDL触发器的事件不包括（）A．Create_Table，Alter_Table，Drop_TableB．Create_View，Alter_View，Drop_ViewC．Create_Procedure，Alter_Procedure，Drop_ProcedureD．Rollback
10、将事务对象trans 回滚的语句是________ 。A．trans.RollBack();B．trans.Restore();C．trans.Commit();D．trans.Close();
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