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What is BigQuery Cache?

SQLeasy0.6 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
EY
Key Concepts Tested
bigquery
Expert AnswerPremium
114 wordsInterview-ready
BigQuery Cache stores query results for repeat queries. If you run the same query (or one that matches cached byte ranges) within 24 hours, BQ returns cached results without scanning data—no charge for bytes scanned. Caching applies to table metadata and query results. Best practice: Use consistent query patterns (same filters, no randomness) to hit cache. Parameterized queries can cache when parameters match. For dashboards, design queries to be cache-friendly....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like EY. The answer also includes follow-up discussion points that interviewers commonly explore.

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