Due to hardware errors and, occasionally, software errors, it is possible for the data in your database to become internally inconsistent. Running the following tests will detect any such internal inconsistency.

• 由于硬件错误（偶尔是软件错误），数据库中的数据可能会变得内部不一致。运行以下的测试将检测任何此类的内部不一致问题。