答案解析
Which three statements are true regarding B-tree indexes?
- A、non-unique index uses the rownum to determine the collating sequence for duplicate keys.
- B、A unique index used the rownum to determine the collating sequence for duplicate keys.
- C、A non-unique index uses the rowid to determine the collating sequence for duplicate keys.
- D、Leaf blocks are linked in a backward collating sequence.
- E、A unique index uses the rowid to determine the collating sequence for duplicate keys.
- F、Leaf blocks are linked in a forward collating sequence.
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