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若数据库中只包含成功事务提交的结果,则此数据库就称为处于()状态。

单选题
2021-09-02 00:18
A、安全
B、一致
C、不安全
D、不一致
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正确答案
B

试题解析

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若数据库中只包含成功事务提交的结果,则此数据库就称为处于()状态。
若一个事务执行成功,则它的全部更新被提交;若一个事务执行失败,则DB中被其更新过的数据恢复原状,就象这些更新从未发生过,这保持了数据库处于( )。
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