You wrote this command to set the isolation level but get an error: SET TRANSACTION LEVEL = READ COMMITTED; What is the error and how to fix it?

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PostgreSQL - Transactions and Concurrency

You wrote this command to set the isolation level but get an error: SET TRANSACTION LEVEL = READ COMMITTED; What is the error and how to fix it?

ASyntax error: remove '=' and use 'ISOLATION' keyword

BWrong isolation level name, use 'READ COMMIT' instead

CMissing semicolon at end of statement

DSET TRANSACTION cannot be used inside a transaction

Step-by-Step Solution

Solution:

Step 1: Identify syntax error
The command incorrectly uses '=' and omits 'ISOLATION' keyword.
Step 2: Correct syntax
The correct command is SET TRANSACTION ISOLATION LEVEL READ COMMITTED; without '='.
Final Answer:
Syntax error: remove '=' and use 'ISOLATION' keyword -> Option A
Quick Check:
Correct syntax requires 'ISOLATION' and no '=' [OK]

Quick Trick: No '=' sign; use 'ISOLATION' keyword in SET TRANSACTION [OK]

Common Mistakes:

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