중급 코드 지구

MySQL

웹에서 가장 많이 쓰이는 오픈 소스 데이터베이스.

MySQL is the open-source database behind WordPress, countless PHP and Laravel apps, and some of the largest sites on the web. You already speak SQL from the SQL track, so this course maps what you know onto MySQL 8.4 LTS and shows where it differs from PostgreSQL: the mysql client, data types, utf8mb4 for Persian text and emoji, InnoDB and its clustered primary key, EXPLAIN, transactions under REPEATABLE READ, upserts with ON DUPLICATE KEY UPDATE, least-privilege users and backups you can actually restore.

Every lesson is short and practical, and the result sets stay tiny, so you can check every answer by eye.

레슨: 14
시간: 2시간
난이도: 중급

코스 시작하기 · Meet MySQL

이 코스의 레슨은 당분간 영어로 제공돼요.

브론즈 도전 가능
실버 도전 가능
골드 잠김

실력을 증명할 준비됐나요?

브론즈, 실버, 골드 세 가지 시험이 기다리고 있어요.

시험 보러 가기

이 코스를 마치면 할 수 있는 것

Connect with the mysql client and find your way around databases and tables
Translate PostgreSQL habits into MySQL: AUTO_INCREMENT, booleans, DATETIME and TIMESTAMP
Store Persian text and emoji safely with utf8mb4
Read EXPLAIN and design indexes around InnoDB's clustered primary key
Use transactions and INSERT ... ON DUPLICATE KEY UPDATE correctly
Create least-privilege users and take backups you can restore

여정

1
챕터 1
MySQL for SQL people

Where MySQL runs, the mysql client, the data types that differ from PostgreSQL, and utf8mb4.

0 / 4
2
챕터 2
Running MySQL well

InnoDB and indexes, transactions, upserts, users and backups.

0 / 6
3
챕터 3
Next steps

Replication, slow queries, JSON columns and changing big tables without downtime.

0 / 4