查看当前运行的SQL语句

WITH sess AS
(
    SELECT
        es.session_id,
        database_name = DB_NAME(er.database_id),
        er.cpu_time,
        er.reads,
        er.writes,
        er.logical_reads,
        login_name,
        er.status,
        blocking_session_id,
        wait_type,
        wait_resource,
        wait_time,
        individual_query = SUBSTRING (qt.text, (er.statement_start_offset/2)+1, ((CASE WHEN er.statement_end_offset = -1 THEN LEN(CONVERT(NVARCHAR(MAX), qt.text)) * 2 ELSE er.statement_end_offset END - er.statement_start_offset)/2)+1),
        parent_query = qt.text,
        program_name,
        host_name,
        nt_domain,
        start_time,
        DATEDIFF(MS,er.start_time,GETDATE()) as duration,
        (SELECT query_plan FROM sys.dm_exec_query_plan(er.plan_handle)) AS query_plan
    FROM
        sys.dm_exec_requests er
        INNER JOIN sys.dm_exec_sessions es ON er.session_id = es.session_id
        CROSS APPLY sys.dm_exec_sql_text(er.sql_handle)as qt
    WHERE
        es.session_id > 50
        AND es.session_Id NOT IN (@@SPID)
)
SELECT
    *
FROM
    sess
UNION ALL SELECT
    es.session_id,
    database_name = '',
    0,
    0,
    0,
    0,
    login_name,
    es.status,
    0,
    '',
    '',
    '',
    qt.text,
    parent_query = qt.text,
    program_name,
    host_name,
    nt_domain,
    es.last_request_start_time,
    DATEDIFF(MS,es.last_request_start_time,GETDATE()) as duration,
    NULL AS query_plan
FROM
    sys.dm_exec_sessions es
    INNER JOIN sys.dm_exec_connections ec ON es.session_id = ec.session_id
    CROSS APPLY sys.dm_exec_sql_text(ec.most_recent_sql_handle)as qt
WHERE
    ec.most_recent_session_id IN
    (
        SELECT blocking_session_id FROM sess WHERE blocking_session_id NOT IN(SELECT DISTINCT session_id FROM sess)
    )
ORDER BY
    1, 2

http://www.cnblogs.com/double-K/p/6264814.html