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Loan Approval Formula in SQL
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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
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Your question is Loan Approval Formula in SQL. Start with the requirements and the two tables in the Question tab.

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CodePostgreSQL
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