Dataford
Interview QuestionsInterview GuidesExperiencesCoaching
New
Pricing
Get started
Dataford
Popular roles
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Browse
Browse All RolesEvery role hub, from analyst to MLBrowse All CompaniesCompany-specific interview loopsAll Interview GuidesThe full guide library
Top questions by role
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Top questions by skill
SQLPythonStatisticsMachine LearningA/B TestingSystem DesignGenerative AIProduct SenseMetricsBehavioral
Browse all questions →Try a mock interview
ExperiencesCoaching
New
Practice
Mock InterviewsTimed interview simulations with feedbackSuccess PathYour 6-week structured planModulesCurated lessons by topicWebinarsTalks from ex-Big Tech data leadsPlaygroundA free-form scratch editor
Learn
BlogInterview strategy and career adviceTech Job Market ReportHiring trends across data and AI rolesFor UniversitiesDataford for career centersAbout DatafordWho we are and how we build
Pricing
Get started
Describing a Data Analysis Project
00:00
5 left

Describing a Data Analysis Project

EasySQL · PostgreSQL

Problem

Describe a data analysis project you have worked on. What tools did you use?

Use the provided project_tools table to produce a project-level summary of the analysis tools recorded for each project.

Output

  1. One row per project, with project_name, tools_used, and tool_count
  2. List distinct tool names alphabetically within tools_used
  3. Sort projects alphabetically by project_name

Schema

project_tools
ColumnTypeDescription
project_tool_idPKINTUnique identifier for a project and tool record
project_nameVARCHAR(150)Name of the data analysis project
tool_nameVARCHAR(80)Analysis tool used in the project
Tablesproject_tools
Interviewer

Your question is Describing a Data Analysis Project. Start with the requirements and the one table in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

You need to log in / sign up to run or submit.
CodePostgreSQL
Sign up free to run your codeLog inLn 1
Run your query to see results here.