Google Professional-Data Exam

Questions Number: 99 out of 319 Questions
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Question 99
You have a query that filters a BigQuery table using a WHERE clause on timestamp and ID columns. By using bq query --dry_run you learn that the query triggers a full scan of the table, even though the filter on timestamp and ID select a tiny fraction of the overall data. You want to reduce the amount of data scanned by BigQuery with minimal changes to existing SQL queries. What should you do?







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