目录前言❤️分库分表简介垂直拆分水平拆分分库分表主键问题分库分表扩容❤️Sharding-JDBCSharding-JDBC简介使用Sharding-JDBC分库使用Sharding-JDBC分表使用Sharding-JDBC读写分离前言
目录1、背景2、为什么分库分表2.1javascript 分表2.2 分库2.3 带来的问题3、不同分库中间件的优缺点3.1 Sharding-jdbc3.2 Mycat3.3 如何选择4、如何拆分4.1、水平拆分（用的最多）4.2、垂直拆分5、分库分表方案确定后
I came across a scenario where giving a script element an id attribute would solve a problem easily. However, after reading about the script element at w3schools and quirksmode, it seems doing so coul
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