Oracle
1Z0-888 · Question #36
1Z0-888 Question #36: Real Exam Question with Answer & Explanation
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Performance Tuning
Question
The query is not using an index. Which two methods can be used to allow the query to use an index?
Options
- AChange the WHERE clause to Birthday BETWEEN 1980-01-01 AND 1980-12-31.
- BAdd a functional index for YEAR(Birthday).
- CExecute ANALYZE TABLE to update the index statistics.
- DAdd a generated column calculating YEAR(Birthday) and index that column.
- EAdd FORCE INDEX (Birthday) to the query.
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Topics
#Index usage#Query optimization#Function-based expressions#Execution plans