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
Loan Approval Formula in SQL
00:00
5 left

Loan Approval Formula in SQL

MediumSQL · PostgreSQL

Problem

How would you create a formula for loan approvals based on a provided table of data?

Using the provided tables, write a SQL query that evaluates each loan application against the approval criteria and assigns an approval score and decision.

Output

  1. One row per loan application
  2. Columns: application_id, applicant_id, approval_score, and approval_decision
  3. Include applications without matching credit data, sort by approval_score descending, then application_id ascending

Schema

loan_applications
ColumnTypeDescription
application_idPKINTUnique loan application identifier
applicant_idINTApplicant identifier used to match credit data
vehicle_priceDECIMAL(10,2)Price of the vehicle being financed
down_paymentDECIMAL(10,2)Cash down payment offered by the applicant
annual_incomeDECIMAL(12,2)Applicant annual income
employment_yearsDECIMAL(4,1)Years at current employment
application_dateDATEDate the application was submitted
credit_profiles
ColumnTypeDescription
applicant_idPKINTUnique applicant identifier
credit_scoreINTApplicant credit score
debt_to_incomeDECIMAL(5,2)Applicant debt-to-income ratio
Tablesloan_applicationscredit_profiles
Interviewer

Your question is Loan Approval Formula in SQL. 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.