How do you find current database's transaction level on SQL Server?
This question is related to
sql
sql-server
sql-server-2008
sql-server-2005
isolation-level
DECLARE @UserOptions TABLE(SetOption varchar(100), Value varchar(100))
DECLARE @IsolationLevel varchar(100)
INSERT @UserOptions
EXEC('DBCC USEROPTIONS WITH NO_INFOMSGS')
SELECT @IsolationLevel = Value
FROM @UserOptions
WHERE SetOption = 'isolation level'
-- Do whatever you want with the variable here...
PRINT @IsolationLevel
SELECT CASE
WHEN transaction_isolation_level = 1
THEN 'READ UNCOMMITTED'
WHEN transaction_isolation_level = 2
AND is_read_committed_snapshot_on = 1
THEN 'READ COMMITTED SNAPSHOT'
WHEN transaction_isolation_level = 2
AND is_read_committed_snapshot_on = 0 THEN 'READ COMMITTED'
WHEN transaction_isolation_level = 3
THEN 'REPEATABLE READ'
WHEN transaction_isolation_level = 4
THEN 'SERIALIZABLE'
WHEN transaction_isolation_level = 5
THEN 'SNAPSHOT'
ELSE NULL
END AS TRANSACTION_ISOLATION_LEVEL
FROM sys.dm_exec_sessions AS s
CROSS JOIN sys.databases AS d
WHERE session_id = @@SPID
AND d.database_id = DB_ID();
If you are talking about the current transaction nesting level, then you would use @@TRANCOUNT
.
If you are talking about transaction isolation level, use DBCC USEROPTIONS
and look for an option of isolation level. If it isn't set, it's read committed.
just run DBCC useroptions
and you'll get something like this:
Set Option Value
--------------------------- --------------
textsize 2147483647
language us_english
dateformat mdy
datefirst 7
lock_timeout -1
quoted_identifier SET
arithabort SET
ansi_null_dflt_on SET
ansi_warnings SET
ansi_padding SET
ansi_nulls SET
concat_null_yields_null SET
isolation level read committed
Source: Stackoverflow.com