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关于学习MySQL的问题

我是学web这方面的,但是学到MySQL感觉很吃力了。我想问搞web的话数据库要学多少,要学精吗,还是只用学常用的增删改查?如果要学精,有啥学方法吗??


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- 常用sql语句
- 引擎
    InnoDB
    MyISAM
    Memory
    ArchiveBlackholeCSVFederatedmergeNDB
- 事务隔离级别
    READ UNCOMMITTED:未提交读
    READ COMMITTED:提交读/不可重复读
    REPEATABLE READ:可重复读(MYSQL默认事务隔离级别)
    SERIALIZEABLE:可串行化
- 索引
    B-Tree
    哈希索引(hash index)
    空间数据索引(R-Tree)
    全文索引
- 锁
    悲观锁
    乐观锁
- 分表
    垂直分表
    水平分表
- sql优化
- 主从配置

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