ACID 模型是一组数据库设计原则，强调对业务数据和关键任务应用程序重要的可靠性方面。MySQL 包括如 InnoDB 存储引擎等组件，这些组件严格遵循 ACID 模型，以确保数据不被破坏，并且结果不会因软件崩溃或硬件故障等异常情况而失真。当你依赖符合 ACID 的功能时，无需重新发明一致性检查和崩溃恢复机制。在你拥有额外的软件安全措施、超可靠硬件或应用程序可以容忍少量数据丢失或不一致的情况下，你可以调整 MySQL 设置，以牺牲部分 ACID 可靠性来换取更高的性能或吞吐量。The ACID model is a set of database design principles that emphasize aspects of reliability that are important for business data and mission-critical applications. MySQL includes components such as the InnoDB storage engine that adhere closely to the ACID model so that data is not corrupted and results are not distorted by exceptional conditions such as software crashes and hardware malfunctions. When you rely on ACID-compliant features, you do not need to reinvent the wheel of consistency checking and crash recovery mechanisms. In cases where you have additional software safeguards, ultra-reliable hardware, or an application that can tolerate a small amount of data loss or inconsistency, you can adjust MySQL settings to trade some of the ACID reliability for greater performance or throughput.

下面的部分讨论了 MySQL 功能，特别是 InnoDB 存储引擎，如何与 ACID 模型的各个类别交互：The following sections discuss how MySQL features, in particular the InnoDB storage engine, interact with the categories of the ACID model:

原子性Atomicity

ACID 模型的 原子性 方面主要涉及 InnoDB 事务。相关的 MySQL 功能包括：The atomicity aspect of the ACID model mainly involves InnoDB transactions. Related MySQL features include:

一致性Consistency

ACID 模型的 一致性 方面主要涉及内部 InnoDB 处理，以保护数据免受崩溃影响。相关的 MySQL 功能包括：The consistency aspect of the ACID model mainly involves internal InnoDB processing to protect data from crashes. Related MySQL features include:

隔离性Isolation

ACID 模型的 隔离性 方面主要涉及 InnoDB 事务，特别是适用于每个事务的 隔离级别。相关的 MySQL 功能包括：The isolation aspect of the ACID model mainly involves InnoDB transactions, in particular the isolation level that applies to each transaction. Related MySQL features include:

持久性Durability

ACID 模型中的 持久性 方面涉及 MySQL 软件功能与您的特定硬件配置的交互。由于这取决于 CPU、网络和存储设备的能力存在多种可能性，这一方面是最难提供具体指导的。（而这些指导可能以 “购买新硬件” 的形式出现。）相关的 MySQL 功能包括：The durability aspect of the ACID model involves MySQL software features interacting with your particular hardware configuration. Because of the many possibilities depending on the capabilities of your CPU, network, and storage devices, this aspect is the most complicated to provide concrete guidelines for. (And those guidelines might take the form of “buy new hardware”.) Related MySQL features include: