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DEA-C02 · Question #94
DEA-C02 Question #94: Real Exam Question with Answer & Explanation
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Performance Optimization
Question
A Data Engineer has a table with no clustering key defined. The Engineer wants to analyze the distribution of micro-partitions by using system functions. To identify the best clustering key for the table, the Engineer executes the following query: SELECT SYSTEM$CLUSTERING_INFORMATION('table1'); What will be the result of this query?
Options
- AAn error saying Invalid clustering key or table table1 is not clustered
- BNotes with suggestions on how to make the clustering more efficient
- CAn error saying The table name must be enclosed by double quotation marks
- DA histogram depicting the distribution of overlap depth for each micro-partition in the table
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Topics
#Clustering Keys#System Functions#Micro-partitions#Performance Optimization