mysql优化参考手册--真

如何改善自卑，接纳自卑，那么首先要了解自卑是什么？
自卑的特点有哪些？先说坏的：1️⃣ 敏感 2️⃣ 失衡 3️⃣ 情绪化
当然并不是真的一无是处，硬要说好的优点，是存在的：1️⃣ 谦虚 2️⃣ 自省
但也因为过度谦虚和无谓的自省，也导致自卑的人没法与自己和解，让自己得到正向反馈，从而负面反馈，越走越艰辛

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Mysql自增id是什么

发布于: 2021-03-08
更新于: 2023-07-09

mysql

自增ID

select last_insert_id()

自增ID独一无二

The ID that was generated is maintained in the server on a per-connection basis. This means that the value returned by the function to a given client is the first AUTO_INCREMENT value generated for most recent statement affecting an AUTO_INCREMENT column by that client. This value cannot be affected by other clients, even if they generate AUTO_INCREMENT values of their own. This behavior ensures that each client can retrieve its own ID without concern for the activity of other clients, and without the need for locks or transactions. —— Mysql5.6 官方文档

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