PostgreSQL
MIDDLE

Hotels – hotels page optimization Test for Middle Data Engineer | SQL, PostgreSQL

Overall seniority level
Middle
Test duration
44 minutes
Evaluation
Automatic
Tested skills:

Test overview

Test is combined from various tasks. SQL task, Choice questions and Code gaps. All evaluated automatically.

Task types

Code gaps

SQL | No duplicate without distinct code gap assessing knowledge of SQL

Level: Medium

Tested skills: SQL

Code gaps

SQL | Self join code gap assessing knowledge of SQL

Level: Medium

Tested skills: SQL

Code gaps

SQL | Add a calculated column code gap assessing knowledge of SQL

Level: Medium

Tested skills: SQL

SQL task

SQL | PostgreSQL | Hotels - hotels page optimization - Improve the performance of the the hotels listing page which currently uses ORM.

Level: Medium

Tested skills: PostgreSQL, SQL

Choice questions

3 choice questions assessing knowledge of SQL

Level: Medium

Tested skills: SQL

Automatic evaluation

We automatically score multi-choice tests and programming tasks and evaluate candidate code for logical correctness, time efficiency and code quality.