mysql 高级特性
时间: 2023-08-27 07:21:02 浏览: 136
MySQL有许多高级特性,其中包括视图和合并表。
视图是一个虚拟表,不存储任何数据,而是从其他表生成数据。通过使用SQL语句访问视图时,MySQL返回的数据是从其他表生成的。视图和表在同一个命名空间中,MySQL在很多方面对待它们和表一样。但是视图不能创建触发器,也不能使用DROP TABLE命令删除视图。视图可以帮助提升性能,因为它们可以对查询结果进行优化展示,但其底层原理仍然是查询原有的表。 这是MySQL在处理字符集时的一个高级特性。
这些是MySQL的一些高级特性,它们可以提供更多的灵活性和功能来满足不同的需求。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *3* [MySQL系列-- 5. MySQL高级特性](https://blog.csdn.net/weixin_34025051/article/details/91365118)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* [高性能mysql读书笔记四-MySQL高级特性](https://blog.csdn.net/liushangzaibeijing/article/details/123707221)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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