Which of the following is the correct way to set the transaction isolation level to Serializable in PostgreSQL?

easy📝 Syntax Q12 of 15

PostgreSQL - Transactions and Concurrency

Which of the following is the correct way to set the transaction isolation level to Serializable in PostgreSQL?

BEGIN;
-- What goes here?
COMMIT;

ASET TRANSACTION ISOLATION LEVEL SERIALIZABLE;

BSET ISOLATION LEVEL TRANSACTION SERIALIZABLE;

CSET TRANSACTION LEVEL SERIALIZABLE ISOLATION;

DSET SERIALIZABLE TRANSACTION ISOLATION LEVEL;

Step-by-Step Solution

Solution:

Step 1: Recall Correct Syntax for Setting Isolation Level
The correct syntax is SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; before running queries in the transaction.
Step 2: Eliminate Incorrect Syntax Options
Options B, C, and D have incorrect word order or missing keywords, causing syntax errors.
Final Answer:
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE; -> Option A
Quick Check:
Correct syntax = SET TRANSACTION ISOLATION LEVEL SERIALIZABLE [OK]

Quick Trick: Remember: SET TRANSACTION ISOLATION LEVEL SERIALIZABLE [OK]

Common Mistakes:

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