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Prep plan
Updated weekly · Last refresh Sep 26Vaco Data Analyst Interview Questions
The questions to prepare for a Vaco Data Analyst interview. Questions from real interview reports rank first. Updated daily.
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SQL & Data ManipulationStart here. 1 question + 3 drills · ~38 min
SQL and Data Analytics ExperienceMedium
Assesses your ability to use SQL and apply analytics to real business questions.
sql
Vaco
VacoSecond Highest Trader SalaryEasy
Practice
Practice drillFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
SubqueriesRankingSorting
eClinicalWorksNNeenOpal Canada
Informatica
eClinicalWorksNNeenOpal CanadaInformaticaSQL Query OptimizationMedium
Practice
Practice drillOptimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.
Performance Tuningdatabase optimizationindexesDDroisys
Capgemini
Nomura
CapgeminiNomuraSQL Window Functions Moving AverageMedium
Practice
Practice drillCalculate a three-day moving average of active-client revenue using aggregation and SQL window functions.
Window FunctionsData Analysissql
AAreteEEvalueserveSShyena Tech Yarns
AAreteEEvalueserveSShyena Tech Yarns2
Behavioral & Leadership1 question · ~8 min
Previous Role ResponsibilitiesEasy
Assesses how your past responsibilities map to the Data Analyst role.
responsibilitieswork experienceVaco
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The finish line: interview-readyComplete all 2 questions plus 3 hands-on drills to finish this plan.