Job offersCompaniesTestsBlogI'm an employerSign upLog in
Home>IT Tests>Questions>Add a unique constraint on the email column while creating the users table in PostgreSQL.

Question from the PostgreSQL test

Add a unique constraint on the email column while creating the users table in PostgreSQL.

Medium

Consider the SQL statement below for creating a table with a constraint in PostgreSQL. Which option correctly adds a unique constraint on the email column while creating the users table?

CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    name VARCHAR(100),
    email VARCHAR(255)
);
Author: abdelghaniStatus: PublishedQuestion passed 181 times
Edit
0
Community EvaluationsNo one has reviewed this question yet, be the first!
Similar Questions
More questions about PostgreSQL
2
Which command in PostgreSQL is used to delete a database?
2
What is the command to back up a database in PostgreSQL?
2
What is the mechanism in PostgreSQL that ensures the integrity of transactions and supports concurrent processing?
1
Which PostgreSQL command changes the definition of a database object, like a table?
1
What type of index is primarily used for full-text search in PostgreSQL?