Basics of SQL databases 🗄️

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

Descripción

Databases, Computer, SQL

Etiquetas

Preguntas

1 min

Por pregunta

7:14

Tiempo promedio

3,0

Puntuación del concurso

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1 comentario

Hip Goose 3 de jun de 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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