SQL and Database Fundamentals
Test practical SQL querying and basic data manipulation for analysts and junior engineers.
About This Assessment
Data analyst and entry-level engineering roles receive massive application volumes, with candidates often listing SQL as a skill despite limited hands-on experience. This assessment validates core SQL competencies including complex queries, joins, aggregations, and basic database administration. Ideal for companies hiring data analysts, junior data engineers, business intelligence roles, and any position requiring data manipulation at scale.
What Candidates Will Do
Write SQL queries with multiple joins, filtering, and aggregations to answer business questions
Create database views and indexes to optimize query performance on sample datasets
Use Python or Bash scripts to extract data via SQL, transform it, and output results to CSV
Automated Grading
Ansible validates query results match expected outputs, views are created with correct logic, indexes exist on specified columns, and exported CSV files contain accurate transformed data in the correct format.
Environment
Ubuntu 22.04 VM with PostgreSQL 15 pre-installed and populated with sample e-commerce database (customers, orders, products, order_items tables). Python 3.10+ with psycopg2 and pandas libraries.
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Purchase this assessment and get started today.
$99.00