增加一些数据库数据访问方面的优化方法 #363
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增加一些数据库数据访问方面的优化方法 #363
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Contributor Author
| 另外还更新了一下间隙锁的应用场景。 |
Owner
| @Lisanaaa 感谢持续贡献！查询优化部分我会做一些修改，因为针对索引的内容已经在上文中提到。 |
Owner
| @Lisanaaa 间隙锁确实容易导致死锁问题，但也不一定是 delete 和 insert 这种场景下。容易出现死锁的主要原因是间隙锁导致了锁定的范围变大，那么就更容易出现换路等待的问题。我觉得最好写清楚最本质的原因，并且给出示例。 你写的其它内容不错，但是我觉得涉及过多细节，我不希望添加很多细节知识，所以不打算采用添加这部分内容。 |
Owner
| @Lisanaaa 查询优化这部分内容确实很重要，明天我有时间的时候会参考你提交的内容做补充。 |
Owner
| @Lisanaaa 欢迎继续提交新内容 |
| vkjfo |
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