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beginner 8 levels · ~45 min

SQL与数据库初学者课程：从零到英雄

表、SELECT、JOIN，以及如何安全地更改数据 - 几乎每一个后端、分析师和管理员工作背后的技能。

What You'll Learn

理解什么是数据库以及为什么存在SQL
读写基本的SELECT/WHERE查询
理解JOIN如何连接相关的表
使用聚合函数和GROUP BY来汇总数据
安全地插入(INSERT)、更新(UPDATE)和删除(DELETE)数据

Course Outline

What Is a Database, Really?

Tables, Rows & Columns

SELECT, WHERE & Filtering Data

JOINs — Combining Tables

Aggregates, GROUP BY & Sorting

INSERT, UPDATE, DELETE & Data Safety

Career Path

Congratulations — You're Ready!

Quiz

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