查看当前数据库连接数是多少？查看当前正在执行的SQL语句？

-- 查看当前的连接
SELECT * FROM [Master].[dbo].[SYSPROCESSES] WHERE [DBID] > 6;

-- 查看当前正在执行的SQL语句
SELECT [Spid] = session_Id
, ecid
, [Database] = DB_NAME( sp.dbid )
, [User] = nt_username
, [Status] = er.status
, [Wait] = wait_type
, [Individual Query] = SUBSTRING (qt. text, er.statement_start_offset/ 2,
(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 )
,[Parent Query] = qt.text
, Program = program_name
, Hostname
, nt_domain
, start_time
FROM sys.dm_exec_requests er
INNER JOIN sys.sysprocesses sp ON er. session_id = sp .spid
CROSS APPLY sys.dm_exec_sql_text(er .sql_handle) as qt
WHERE session_Id > 50 -- Ignore system spids.
AND session_Id NOT IN (@@SPID) -- Ignore this current statement.
ORDER BY 1, 2