IBM
A2090-614 · Question #83
A2090-614 Question #83: Real Exam Question with Answer & Explanation
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Question
The following query is executed frequently against the SALES table: SELECT sales_person, region FROM sales WHERE region = 'Quebec' Which statement will create an index for optimal query performance?
Options
- ACREATE INDEX sales_idx ON sales (region)
- BCREATE INDEX sales_idx ON sales (sales_person)
- CCREATE INDEX sales_idx ON sales (region, sales_person)
- DCREATE INDEX sales_idx ON sales (region) INCLUDE (sales_person)
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