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斗志斗勇之mysql
2022-04-22 16:50:00 【云澜哥哥】
1.myisam 和 innodb的区别:
| myisam | myisam引擎是5.1版本之前的默认引擎,支持全文检索、压缩、空间函数等,但是不支持事务和行级 锁,所以一般用于有大量查询少量插入的场景来使用,而且myisam不支持外键,并且索引和数据是分开存储的。 |
| innodb | innodb是基于聚簇索引建立的,和myisam相反它支持事务、外键,并且通过MVCC来支持高并发,索 引和数据存储在一起。 |
2.mysql的索引有哪些:索引按照数据结构来说主要包含B+树和Hash索引。
3.聚簇和非聚簇索引又是什么:
| B+树 |
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本文为[云澜哥哥]所创,转载请带上原文链接,感谢
https://blog.csdn.net/qq_35781178/article/details/124318996
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