Determining the Current Transaction Isolation Level in SQL Server
This guide shows you how to quickly identify the current transaction isolation level for your SQL Server database.
Establish a Database Connection: First, connect to the specific SQL Server database you need to examine.
Execute the Query: Run the following SQL query:
<code class="language-sql">SELECT CASE transaction_isolation_level WHEN 0 THEN 'Unspecified' WHEN 1 THEN 'ReadUncommitted' WHEN 2 THEN 'ReadCommitted' WHEN 3 THEN 'Repeatable' WHEN 4 THEN 'Serializable' WHEN 5 THEN 'Snapshot' END AS TRANSACTION_ISOLATION_LEVEL FROM sys.dm_exec_sessions WHERE session_id = @@SPID;</code>
TRANSACTION_ISOLATION_LEVEL
column. This reflects the isolation level of your current session.For a comprehensive understanding of the numerical values representing each transaction isolation level, refer to the official Microsoft documentation on learn.microsoft.com.
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