Top 3
Prep plan
Updated weekly · Last refresh Oct 17PCS Global Tech Data Engineer Interview Questions
The questions to prepare for a PCS Global Tech Data Engineer interview. Questions from real interview reports rank first. Updated daily.
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normalizationStart here. 2 questions · ~16 min
Third Normal FormEasy
Evaluates your knowledge of 3NF and its key constraints.
normalizationdatabase design
PCS Global Tech
PCS Global TechNormalization Forms ExplainedMedium
Assesses your understanding of relational normalization and when to apply each normal form.
normalizationdatabase designPCS Global Tech
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2
Joins1 question + 2 drills · ~28 min
Joining Tables in SQLEasy
Tests your ability to write correct SQL joins for relational data retrieval.
Joinssql queryPCS Global Tech
PCS Global TechOptimize a Slow SQL QueryHard
Practice
Practice drillRewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.
database optimizationJoinsData Wrangling
AmeripriseEEltro Cyberchrome Private
EnergyHub
AmeripriseEEltro Cyberchrome PrivateEnergyHubTop Customers by Net SalesMedium
Practice
Practice drillCompute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.
SubqueriesJoinsData Wrangling
Gain Digital
TCS
Zest AI
Gain DigitalTCSZest AIHands-on SQL practiceWrite and run real queries in the editor. 1 drill · ~10 min
The finish line: interview-readyComplete all 3 questions plus 3 hands-on drills to finish this plan.