Top 30
Prep plan
Updated weekly · Last refresh Aug 30

Circle K Data Analyst Interview Questions

The questions to prepare for a Circle K Data Analyst interview. Questions from real interview reports rank first. Updated weekly.

30questions
~4htotal time
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1
SQL & Data ManipulationStart here. 9 questions + 3 drills · ~102 min
Handling NULLs in Basket SizeMedium

Tests ability to produce accurate metrics by correctly handling NULLs in SQL.

null handlingfinancial dataAggregationsCircle K
Filtering Promotions with LIKEEasy

Tests ability to write pattern-matching SQL for transaction-level filtering.

Data WranglingCase WhenCircle K
Choosing INNER vs LEFT JOINMedium

Tests understanding of relational joins and selecting the right join type for analysis.

Joinsmany-to-onedata integrityCircle K
Profiling a Massive TableEasy

Tests SQL fundamentals and practical approach to safely exploring large datasets.

Data WranglingperformanceCircle K
SQL LIMIT and LIKE UsageMedium

Tests ability to write correct SQL for filtering and limiting results using LIMIT and LIKE.

Date FunctionsData WranglingperformanceCircle K
RLS in SQLHard

Evaluates your understanding of row-level security and how you apply it to protect data access.

implementationCircle K
Find Duplicate Rows QueryEasy
Practice
Practice drill

Identify duplicate Dover India asset records using GROUP BY and HAVING, excluding the unique record identifier.

Data WranglingsqlAggregationsDover IndiaDataAnnotation
Pivot Lucid Campaign Performance by MonthMedium
Practice
Practice drill

Use joins, a CTE, CASE expressions, and monthly pivoting to compare Lucid campaign performance across channels.

pivot tablesnull handlingData WranglingLucid Motors
Supplier Cost Variance Trend AnalysisHard
Practice
Practice drill

Use joins, a CTE, and date functions to find monthly supplier cost variance and on-time delivery trends.

financial dataData WranglingperformanceBae Systems Usa
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2
Behavioral & Leadership20 questions · ~160 min
Introduce YourselfEasy

Tests communication clarity and how you frame your background for Nones.

backgroundCommunicationself introductionCircle K
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3
More topics1 question · ~8 min
The finish line: interview-readyComplete all 30 questions plus 3 hands-on drills to finish this plan.