数据库设计与SQL精通
设计高效的数据库并编写复杂的查询
掌握数据库设计原则、SQL 查询、规范化、索引和数据库优化技术。
课程内容
数据库基础
关系数据库概念
理解表、关系和约束。
SQL 查询
查询
使用复杂的SELECT语句检索数据。
连接和子查询
合并来自多个表的数据。
数据库设计
标准化
设计高效的数据库模式。
性能优化
索引策略
使用索引提高查询性能。
高级主题
存储过程
创建可重用的数据库过程。
测验
1. 数据库规范化的目的是什么？
- 为了让数据库更快
- 为了减少数据冗余并提高数据完整性✓ Correct
- 增加存储空间
- 为了让查询更简单
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