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Validate Data Accuracy After Change

Medium
SQL & Data ManipulationJoinsData WranglingAggregations

Problem

How do you validate data accuracy after a system change at PNC Financial Services Group?

Practicing as: QA Engineer interview at PNC Financial Services Group

Hi, I'll play your PNC Financial Services Group interviewer for the QA Engineer role. Answer the question above like we're in the room, and I'll respond the way a real interviewer would.

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