单选题Examine the following command： SQL> ALTER TABLE booking SHRINK SPACE COMPACT； Which activity is performed when the preceding command is executed？（）AThe shrink operation touches every block in the BOOKING tableBThe high-water mark （HWM） for the BOOK
题目
单选题
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