Sample code to trace locks

Sample code to trace locks:

SELECT  L.request_session_id AS SPID,

    DB_NAME(L.resource_database_id) AS DatabaseName,

    O.Name AS LockedObjectName,

    P.object_id AS LockedObjectId,

    L.resource_type AS LockedResource,

    L.request_mode AS LockType,

    ST.text AS SqlStatementText,      

    ES.login_name AS LoginName,

    ES.host_name AS HostName,

    TST.is_user_transaction as IsUserTransaction,

    AT.name as TransactionName,

    CN.auth_scheme as AuthenticationMethod

FROM    sys.dm_tran_locks L

    JOIN sys.partitions P ON P.hobt_id = L.resource_associated_entity_id

    JOIN sys.objects O ON O.object_id = P.object_id

    JOIN sys.dm_exec_sessions ES ON ES.session_id = L.request_session_id

    JOIN sys.dm_tran_session_transactions TST ON ES.session_id = TST.session_id

    JOIN sys.dm_tran_active_transactions AT ON TST.transaction_id = AT.transaction_id

    JOIN sys.dm_exec_connections CN ON CN.session_id = ES.session_id

    CROSS APPLY sys.dm_exec_sql_text(CN.most_recent_sql_handle) AS ST

WHERE   resource_database_id = db_id()

ORDER BY L.request_session_id