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 tableB、 The high-water mark （HWM） for the BOOKING table is shifted from its original positionC、 The progress of the shrink operation is saved in the bitmap blocks of the BOOKING tableD、 The data manipulation language （DML） triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operation
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
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