Oracle Database 19c: Performance Management and Tuning Quiz 04 15Nov24 - Practice Quiz

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A database administrator is tasked with optimizing a complex SQL query that joins three large tables and filters results based on a specific column. The current execution plan shows a full table scan on one of the tables, leading to performance issues. Which optimization technique should the administrator prioritize to enhance the query\'s performance?

Create an index on the filtered column of the table that is currently being fully scanned.

Rewrite the query to eliminate the join with the least selective table.

Increase the memory allocation for the database to improve overall performance.

Change the database's default optimizer mode to a more aggressive setting.

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