Identify Locked Table
SELECT
OBJECT_NAME(p.OBJECT_ID) AS TableName,
resource_type, resource_description
FROM sys.dm_tran_locks l
JOIN sys.partitions p
ON l.resource_associated_entity_id = p.hobt_id
SELECT *
FROM sys.dm_exec_requests CROSS APPLY sys.dm_exec_sql_text(sql_handle)
WHERE session_id IN
(
SELECT blocking_session_id
FROM sys.dm_exec_requests
WHERE DB_NAME(database_id)='?' and blocking_session_id <>0
)