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Updated weekly · Last refresh Aug 30

Fivetran Data Analyst Interview Questions

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

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1
SQL & Data ManipulationStart here. 4 questions + 3 drills · ~62 min
Ranking Trial Results with Window FunctionsEasy

Explain how RANK(), DENSE_RANK(), and ROW_NUMBER() differ when ordering tied clinical trial results.

Window FunctionsRankingData WranglingFivetran
Optimizing Slow SQL JoinsHard

Tests SQL performance tuning and practical debugging of join-heavy analytics queries.

Joinsperformancequery optimizationFivetran
Windows Functions in SQLMedium

Assesses ability to apply window functions to real analysis tasks.

Window FunctionssqlFivetran
SQL Walkthrough and DebuggingMedium

Evaluates your SQL reasoning and ability to explain and debug queries step by step.

sqlbehavioralFivetran
Latest Row Per GroupEasy
Practice
Practice drill

Use ROW_NUMBER and windowed COUNT to return the latest row from duplicate Fivetran sync record groups.

Window FunctionsRankingGroup ByFivetran
Calculate 30-Day User RetentionHard
Practice
Practice drill

Use CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.

Window FunctionsDate FunctionsAggregationsCurefitReachMobiIndeed
Customer Transaction Running TotalsEasy
Practice
Practice drill

Calculate each customer's cumulative transaction amount over time using a CTE and window function.

Window FunctionsDate FunctionsRunning TotalsBanco SantanderAnzBank Of Tokyo-Mitsubishi UFJ
2
Behavioral & Leadership6 questions · ~48 min
Resolving Data Quality Under PressureMedium

Tests ownership of data quality issues, risk communication to leadership, and stakeholder management under business pressure.

Data QualityCommunicationLeadershipFivetran
Prioritizing Competing Analytics RequestsMedium

Tests prioritization under pressure: how you rank competing analytics work, communicate trade-offs, and drive measurable outcomes amid ambiguity.

OwnershipDealing With AmbiguityPrioritizationFivetran
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3
More topics2 questions · ~16 min
Connector Health and Adoption MetricsMedium

Tests metric design for product analytics, reliability, and customer adoption.

adoptionKPIFivetran
Investigating MAR SpikesMedium

Tests diagnostic thinking using behavioral metrics and sync-process signals.

Diagnosisanomaly detectionFivetran

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