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一致性：执行事务前后，数据保持一致；描述不准确，如果一个事务对表进行了更改，随后提交那么这样子数据保存一致指的是啥？按维基百科的说法应该是：在事务开始之前和事务结束以后，数据库的完整性没有被破坏。这表示写入的资料必须完全符合所有的预设约束、触发器、级联回滚等。按高性能MySQL的说法是数据库从一个一致性状态转换到另一个一致性状态。 READ_UNCOMMITTED翻译为未提交读更加准确。参见高性能Mysql。
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一致性：执行事务前后，数据保持一致；描述不准确，如果一个事务对表进行了更改，随后提交那么这样子数据保存一致指的是啥？按维基百科的说法应该是：在事务开始之前和事务结束以后，数据库的完整性没有被破坏。这表示写入的资料必须完全符合所有的预设约束、触发器、级联回滚等。按高性能MySQL的说法是数据库从一个一致性状态转换到另一个一致性状态。
READ_UNCOMMITTED翻译为未提交读更加准确。参见高性能Mysql。