[Solved] You wrote this SQL command to set the isolation level but get an error:SET TRANSACTION LEVEL ISOLATION READ COMMITTED;What is the error in this statement? | SQL

SQL - Transactions and Data Integrity

You wrote this SQL command to set the isolation level but get an error:
SET TRANSACTION LEVEL ISOLATION READ COMMITTED;
What is the error in this statement?

AThe statement is correct; error is elsewhere.

B'TRANSACTION' keyword is missing.

C'READ COMMITTED' is not a valid isolation level.

DThe order of 'LEVEL' and 'ISOLATION' is incorrect.

Step-by-Step Solution

Solution:

Step 1: Check correct syntax and identify the error
Correct syntax is SET TRANSACTION ISOLATION LEVEL [level]; The given statement swaps 'LEVEL' and 'ISOLATION', causing a syntax error.
Final Answer:
The order of 'LEVEL' and 'ISOLATION' is incorrect. -> Option D
Quick Check:
Syntax order matters = The order of 'LEVEL' and 'ISOLATION' is incorrect. [OK]

Quick Trick: Remember correct keyword order: ISOLATION LEVEL [OK]

Common Mistakes:

Swapping 'LEVEL' and 'ISOLATION' keywords
Assuming 'READ COMMITTED' is invalid
Missing semicolon causing error

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