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What is the main purpose of using EXPLAIN ANALYZE in PostgreSQL?

easy📝 Conceptual Q11 of 15
PostgreSQL - Set Operations and Advanced Queries
What is the main purpose of using EXPLAIN ANALYZE in PostgreSQL?
ATo create a new database
BTo delete data from a table
CTo show how a query runs and how long each step takes
DTo backup the database
Step-by-Step Solution
Solution:

  1. Step 1: Understand the function of EXPLAIN ANALYZE

    It runs the query and shows the execution plan with timing details.

  2. Step 2: Compare options with this function

    Only To show how a query runs and how long each step takes describes showing query steps and timing, others are unrelated.

  3. Final Answer:

    To show how a query runs and how long each step takes -> Option C

  4. Quick Check:

    EXPLAIN ANALYZE = Query profiling [OK]
Quick Trick: EXPLAIN ANALYZE = see query steps and time [OK]
Common Mistakes:
  • Thinking EXPLAIN ANALYZE modifies data
  • Confusing EXPLAIN ANALYZE with backup commands
  • Assuming it creates or deletes databases

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