このレッスンは、現在英語のみです。
Rules that can't be skipped
Validation in your app gives friendly messages. Constraints in the database give guarantees: no script, bug or second service can write a row that breaks them.
このレッスンは、現在英語のみです。
Validation in your app gives friendly messages. Constraints in the database give guarantees: no script, bug or second service can write a row that breaks them.