Basics of SQL databases 🗄️

Simple and useful quiz to test basic knowledge of SQL databases.

Description

Databases, Computer, SQL

Mots-clés

Questions

1 min

Par question

7:14

Temps moyen

3,0

Score au concours

Participants

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1 commentaire

Hip Goose 3 Jun 2020

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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