1. Basics of SQL databases 🗄️
Basics of SQL databases 🗄️
English
일반
Simple and useful quiz to test basic knowledge of SQL databases.
설명
Databases, Computer, SQL
태그
30
질문
1 분
질문당
7:14
평균 시간
3.0
대회 점수
32
참가자
퀴즈 시작
1 댓글
Hip Goose
Q. What constraint should used for unique values.
Option contains both 1.Primary key and 2.Unique key ;
my question is why only primary key is correct...

Waiting for some reasonable answer.
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