多选题Which three descriptions are correct about the effects of the TRUNCATE command on a table（）AThe corresponding indexes for the table are also truncated.BDelete triggers on the table are fired during the execution of the TRUNCATE command.CThe child table

多选题

Which three descriptions are correct about the effects of the TRUNCATE command on a table（）

A

The corresponding indexes for the table are also truncated.

B

Delete triggers on the table are fired during the execution of the TRUNCATE command.

C

The child table is truncated when the TRUNCATE command is applied on the parent table.

D

The high-water mark （HWM） is set to point to the first usable data block in the table segment.

E

No undo or very little undo data is generated during the execution of the TRUNCATE command

正确答案： A,C

解析：暂无解析

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