MySQL
Die meistgenutzte Open-Source-Datenbank im Web.
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.
- Lektionen
- 14
- Zeit
- 2 Std.
- Level
- Mittelstufe
Die Lektionen dieses Kurses gibt es vorerst nur auf Englisch.
- Bronze offen
- Silber offen
- Gold gesperrt
Bereit, es zu beweisen?
Drei Prüfungen warten auf dich: Bronze, Silber und Gold.
Das wirst du können
- Connect with the
mysqlclient and find your way around databases and tables - Translate PostgreSQL habits into MySQL:
AUTO_INCREMENT, booleans,DATETIMEandTIMESTAMP - Store Persian text and emoji safely with
utf8mb4 - Read
EXPLAINand design indexes around InnoDB's clustered primary key - Use transactions and
INSERT ... ON DUPLICATE KEY UPDATEcorrectly - Create least-privilege users and take backups you can restore
Die Reise
1 Modul 1MySQL for SQL people
Where MySQL runs, the mysql client, the data types that differ from PostgreSQL, and utf8mb4.
0 / 42 Modul 2Running MySQL well
InnoDB and indexes, transactions, upserts, users and backups.
0 / 63 Modul 3Next steps
Replication, slow queries, JSON columns and changing big tables without downtime.
0 / 4