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Update MySQL高性能优化规范建议.md
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cnLGMing committed May 9, 2019
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Expand Up @@ -311,7 +311,7 @@ select name,phone from customer where id = '111';

### 4. 数据库设计时,应该要对以后扩展进行考虑

### 5. 程序连接不同的数据库使用不同的账号,进制跨库查询
### 5. 程序连接不同的数据库使用不同的账号,禁止跨库查询

- 为数据库迁移和分库分表留出余地
- 降低业务耦合度
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