[Solved] Which of the following is a benefit of using EXPLAIN ANALYZE? — Ans: It shows the query execution time and actual rows processed | PostgreSQL

PostgreSQL - Performance Tuning

Which of the following is a benefit of using EXPLAIN ANALYZE?

AIt automatically fixes slow queries

BIt shows the query execution time and actual rows processed

CIt deletes unused indexes

DIt prevents queries from running

Step-by-Step Solution

Solution:

Step 1: Identify what EXPLAIN ANALYZE reports
It reports actual execution time and rows processed, which helps in performance tuning.
Step 2: Understand what it does not do
It does not fix queries, delete indexes, or prevent execution.
Final Answer:
It shows the query execution time and actual rows processed -> Option B
Quick Check:
Benefit of EXPLAIN ANALYZE = Shows real execution stats [OK]

Quick Trick: EXPLAIN ANALYZE reveals real query performance data [OK]

Common Mistakes:

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Which of the following is a benefit of using EXPLAIN ANALYZE?