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mysql事务,数据一致性的核心法则
网上购物结账失败时购物车自动恢复,银行转账余额不足不扣款——这些看似简单的功能背后,都依赖MySQL事务这一"数据保险箱"。 事务的本质:要么全有,要么全无 事务将多个数据库操作打包成不可分割的单元,严格遵守"全成功或全失败"原则。以转账为例:A ...
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