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
Experiences
Practice
Mock InterviewsTimed interview simulations with feedbackCoaching1:1 coaching with people at your target companiesSuccess 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
Build my plan
SQL Ranking Query
00:00
5 left

SQL Ranking Query

EasySQL · PostgreSQL

Problem

Socure needs to inspect completed Socure ID+ verification records in descending risk-score order. Write a PostgreSQL query that returns the single record ranked tenth among eligible verifications.

Requirements

  1. Join verification_records to applicants to include the applicant name.
  2. Consider only records with decision_status = 'completed' and product_surface = 'Socure ID+'.
  3. Rank records by risk_score descending, using verification_id ascending as a deterministic tie-breaker, then return rank 10.

Schema

applicants
ColumnTypeDescription
applicant_idPKINTUnique applicant identifier
full_nameVARCHAR(100)Applicant's full name
verification_records
ColumnTypeDescription
verification_idPKINTUnique verification record identifier
applicant_idINTReferences applicants.applicant_id
product_surfaceVARCHAR(50)Socure product or integration surface
decision_statusVARCHAR(30)Current verification decision status
risk_scoreINTRisk score used for descending ranking
Tablesapplicantsverification_records
Interviewer

Your question is SQL Ranking Query. Start with the requirements and the two tables 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.