이 레슨은 당분간 영어로 제공돼요.
Rules the database enforces
Your app can check data, but bugs happen and scripts skip checks. Constraints are rules stored in the table itself: the database refuses any row that breaks them, whoever sends it.
이 레슨은 당분간 영어로 제공돼요.
Your app can check data, but bugs happen and scripts skip checks. Constraints are rules stored in the table itself: the database refuses any row that breaks them, whoever sends it.