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What is true regarding InnoDB locking?（）
A:InnoDB uses row and table-level locks, but row locks are not escalates
B:InnoDB locks only those rows that are updated
C:InnoDB only uses row locks, not page or table-level locks
D:InnoDB row locks may be escalated to page or table-level locks
E:InnoDB uses row-level or table-level locks depending on the number of rows affected

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出自：Oracle认证

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