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Updated weekly · Last refresh Sep 25Pcs Research Group Consultant Interview Questions
The questions to prepare for a Pcs Research Group Consultant interview. Questions from real interview reports rank first. Updated daily.
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sqlStart here. 1 question + 1 drill · ~18 min
SQL Keys and ConstraintsMedium
Assesses understanding of core SQL and database theory concepts used in data support work.
sql
Pcs Research Group
Pcs Research GroupSQL 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
CapgeminiNomura2
Joins1 question · ~8 min
Join Queries Across TablesHard
Evaluates ability to construct correct SQL joins to retrieve answers from relational data.
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
Second 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 CanadaInformaticaSecond Highest Without AggregatesHard
Practice
Practice drillFind the second highest salary in each department without using aggregate functions.
SubqueriesRankingSelf-Joins
Credit Genie
Devoteam
Cisco Restaurant + Bar
Credit GenieDevoteamCisco Restaurant + BarThe finish line: interview-readyComplete all 2 questions plus 3 hands-on drills to finish this plan.