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Prep plan
Updated weekly · Last refresh Nov 6
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Improvado Data Analyst Interview Questions

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

6questions
~1htotal time
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1
Window FunctionsStart here. 2 questions · ~16 min
Top 5 Campaigns Per MonthMedium

Tests window function usage for ranking and partitioned top-N selections in marketing data.

Window FunctionsData Analysissql queriesIImprovado
Window Functions vs AggregationsMedium

Tests understanding of window functions versus group aggregations for marketing reporting use cases.

Window FunctionsAggregationsIImprovado
2
Performance Tuning1 question · ~8 min
Optimizing Slow SQL QueriesHard

Tests performance tuning skills including query structure, indexing, and execution plan reasoning.

Performance Tuningquery optimizationsqlIImprovado

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3
Data Analysis1 question + 3 drills · ~38 min
Calculating CPA Per ChannelMedium

Tests ability to compute marketing KPIs correctly from spend and conversion data.

Data Analysissql queriesIImprovado
Writing SQL for Membership and ClaimsMedium
Practice
Practice drill

Deduplicate Centene membership and claims records, then calculate daily member and claim totals.

data cleaningData Analysissql queriesCentene
Donor-to-Acceptor Ratio QueryMedium
Practice
Practice drill

Use aggregation and joins to identify the cities with the highest and lowest donor-to-acceptor ratios.

null handlingJoinsData AnalysisMeesho
Writing a Complex SQL QueryMedium
Practice
Practice drill

Write and explain a query that summarizes analyst query performance by dataset and ranks analysts by success rate.

JoinsData Analysiscomplex queriesAutodeskPCS Global TechGro Intelligence
4
data cleaning1 question · ~8 min
Handling Nulls in Marketing DataMedium

Tests data cleaning and SQL logic for robust KPI calculations under incomplete data.

data cleaningnull handlingdata integrityIImprovado
5
data relationships1 question · ~8 min
Joining Datasets With Different GranularitiesMedium

Tests SQL join strategy and correctness when aligning metrics across mismatched aggregation levels.

data relationshipsJoinscomplex queriesIImprovado
The finish line: interview-readyComplete all 6 questions plus 3 hands-on drills to finish this plan.