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apexanalytix Data Analyst Interview Questions

The questions to prepare for a apexanalytix Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~51 min
Duplicate Invoice SQL LogicMedium
Practice

Find vendors with multiple invoices sharing the same amount and invoice date using aggregation.

Joinsfinancial dataData Wranglingapexanalytix
Second Highest Payment WindowHard

Tests advanced SQL window function usage for ranking and partitioned aggregations.

Window FunctionsDate FunctionsRankingapexanalytix
Fixing LEFT JOIN DuplicatesMedium

Tests debugging and correctness skills for SQL joins and row-multiplication issues.

SubqueriesJoinsData Wranglingapexanalytix
Handling Missing DataMedium
Practice
Practice drill

Standardize missing observation fields with fallback values, missingness flags, and ordered output.

Window Functionsmissing valuesdata cleaningEversource EnergyCincinnati Children's HospitalAdtalem Global Education
Top Customers by Sales RevenueEasy
Practice
Practice drill

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsHousecall ProEquifaxXYZ
2
More topics2 questions · ~21 min
Supplier Risk Dashboard MetricsMedium

Tests product sense for selecting actionable supplier-risk metrics aligned to procurement leadership needs.

User NeedsValue PropositionUse Casesapexanalytix
Investigate Duplicate Payment SpikeMedium

Tests root-cause analysis using data validation, segmentation, and metric breakdowns.

KPIsLeading IndicatorsDiagnosisapexanalytix

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