Analyze Execution Plans

Explanation: Understanding how the database executes your queries can lead to performance optimization.

• Why It Matters: The execution plan reveals how tables are accessed and how joins are performed, helping identify bottlenecks.
• Example: Use EXPLAIN PLAN FOR before your SQL query to see the execution path:

EXPLAIN PLAN FOR SELECT * FROM employees WHERE salary > 60000;
SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);