问题:
A . It is NOT possible to switch unless no active transaction exist in UNDO1.
B . It is possible to switch to UNDO2; but current active transactions will abort.
C . It is possible to switch to UNDO2; current active transactions will be automatically migrated to UNDO2.
D . It is possible to switch to UNDO2; only current active transactions will continue to execute inside UNDO1.
● 参考解析
本题暂无解析
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