Dataford
Interview QuestionsInterview GuidesExperiencesMock InterviewsPricing
Get started

Pivot Open Issues by Store

EasySQL · PostgreSQL00:00
Practice interviewer
In session
5 left
00:00

Your question is Pivot Open Issues by Store. Start with the requirements and the one table on the right.

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.

Problem

Instacart operations wants a quick store-level summary of currently open shopper support issues. Write a SQL query to pivot issue counts by store.

Requirements

  1. Return one row per store_name for records where issue_status = 'open'.
  2. Include the total number of open issues as total_open_issues.
  3. Include separate counts for these issue types only:
    • late_pick as late_pick_issues
    • out_of_stock as out_of_stock_issues
    • substitution_needed as substitution_needed_issues
  4. Order the result by total_open_issues descending, then store_name ascending.

Schema

shopper_support_issues
ColumnTypeDescription
issue_idPKINTUnique issue record ID
store_nameVARCHAR(100)Instacart partner store name
issue_typeVARCHAR(50)Type of picker issue
issue_statusVARCHAR(20)Current issue status
reported_dateDATEDate the issue was reported
affected_ordersINTNumber of orders affected
Tablesshopper_support_issues
Your solutionPostgreSQL
You need to log in / sign up to run or submit.
Run a query to see results