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IBM认证考试

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Application A currently holds an exclusive lock on a single row and application B tries to access that row. If lock timeout is set to -1 and both applications are using isolation level RS, which of the following will occur?()

  • A、Applications A and B will cause a deadlock situation
  • B、Application B will read the previous version of the row
  • C、Application B will read the row and see uncommitted changes made by application A
  • D、Application B will be placed in a lock-wait state until application A releases its lock
正确答案:D
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