PostgreSQL - Performance TuningWhich of the following is the correct syntax to check the query plan in PostgreSQL?AEXPLAIN SELECT * FROM users;BDESCRIBE SELECT * FROM users;CPLAN SELECT * FROM users;DSHOW PLAN SELECT * FROM users;Check Answer
Step-by-Step SolutionSolution:Step 1: Recall the command to view query plansPostgreSQL uses EXPLAIN to show how it will run a query.Step 2: Compare options to the correct commandOnly EXPLAIN SELECT * FROM users; is valid syntax for query plans.Final Answer:EXPLAIN SELECT * FROM users; -> Option AQuick Check:EXPLAIN = Query plan check [OK]Quick Trick: Use EXPLAIN before your query to see the plan [OK]Common Mistakes:Using SHOW PLAN which is invalidTrying PLAN or DESCRIBE which are not PostgreSQL commandsMissing the EXPLAIN keyword
Master "Performance Tuning" in PostgreSQL9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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