--1.查看数据库版本信息
select @@version
--2.查看所有数据库名称及大小
exec sp_helpdb
--3.查看数据库所在机器的操作系统参数
exec master..xp_msver
--4.查看数据库启动的参数
exec sp_configure
--5.查看数据库启动时间
select convert(varchar(30),login_time,120)
from master..sysprocesses where spid=1
--6.查看数据库服务器名
select 'Server Name:'+ltrim(@@servername)
--7.查看数据库实例名
select 'Instance:'+ltrim(@@servicename)
--8.数据库的磁盘空间呢使用信息
exec sp_spaceused
--9.日志文件大小及使用情况
dbcc sqlperf(logspace)
--10.表的磁盘空间使用信息
exec sp_spaceused 'tablename'
--11.获取磁盘读写情况
select
@@total_read [读取磁盘次数],
@@total_write [写入磁盘次数],
@@total_errors [磁盘写入错误数],
getdate() [当前时间]
--12.获取I/O工作情况
select @@io_busy,
@@timeticks [每个时钟周期对应的微秒数],
@@io_busy*@@timeticks [I/O操作毫秒数],
getdate() [当前时间]
--13.查看CPU活动及工作情况
select
@@cpu_busy,
@@timeticks [每个时钟周期对应的微秒数],
@@cpu_busy*cast(@@timeticks as float)/1000 [CPU工作时间(秒)],
@@idle*cast(@@timeticks as float)/1000 [CPU空闲时间(秒)],
getdate() [当前时间]
--14.检查锁与等待
exec sp_lock
--15.检查死锁
exec sp_who_lock --自己写个存储过程即可
/*
create procedure sp_who_lock
as
begin  declare @spid int,@bl int,  @intTransactionCountOnEntry int,  @intRowcount int,  @intCountProperties int,  @intCounter int  create table #tmp_lock_who (id int identity(1,1),spid smallint,bl smallint)  IF @@ERROR<>0 RETURN @@ERROR  insert into #tmp_lock_who(spid,bl) select 0 ,blocked  from (select * from sys.sysprocesses where blocked>0 ) a   where not exists(select * from (select * from sys.sysprocesses where blocked>0 ) b   where a.blocked=spid)  union select spid,blocked from sys.sysprocesses where blocked>0  IF @@ERROR<>0 RETURN @@ERROR  -- 找到临时表的记录数  select @intCountProperties = Count(*),@intCounter = 1  from #tmp_lock_who  IF @@ERROR<>0 RETURN @@ERROR  if @intCountProperties=0  select '现在没有阻塞和死锁信息' as message  -- 循环开始  while @intCounter <= @intCountProperties  begin  -- 取第一条记录  select @spid = spid,@bl = bl  from #tmp_lock_who where id = @intCounter   begin  if @spid =0   select '引起数据库死锁的是: '+ CAST(@bl AS VARCHAR(10)) + '进程号,其执行的SQL语法如下'  else  select '进程号SPID：'+ CAST(@spid AS VARCHAR(10))+ '被' + '进程号SPID：'+ CAST(@bl AS VARCHAR(10)) +'阻塞,其当前进程执行的SQL语法如下'  DBCC INPUTBUFFER (@bl )  end  -- 循环指针下移  set @intCounter = @intCounter + 1  end  drop table #tmp_lock_who  return 0
end
*/--16.用户和进程信息
exec sp_who
exec sp_who2--17.活动用户和进程的信息
exec sp_who 'active'--18.查看进程中正在执行的SQL
dbcc inputbuffer(进程号)
exec sp_who3
/*
CREATE PROCEDURE sp_who3 ( @SessionID INT = NULL )
AS BEGINSELECT  SPID = er.session_id ,Status = ses.status ,[Login] = ses.login_name ,Host = ses.host_name ,BlkBy = er.blocking_session_id ,DBName = DB_NAME(er.database_id) ,CommandType = er.command ,SQLStatement = st.text ,ObjectName = OBJECT_NAME(st.objectid) ,ElapsedMS = er.total_elapsed_time ,CPUTime = er.cpu_time ,IOReads = er.logical_reads + er.reads ,IOWrites = er.writes ,LastWaitType = er.last_wait_type ,StartTime = er.start_time ,Protocol = con.net_transport ,ConnectionWrites = con.num_writes ,ConnectionReads = con.num_reads ,ClientAddress = con.client_net_address ,Authentication = con.auth_schemeFROM    sys.dm_exec_requests erOUTER APPLY sys.dm_exec_sql_text(er.sql_handle) stLEFT JOIN sys.dm_exec_sessions ses ON ses.session_id = er.session_idLEFT JOIN sys.dm_exec_connections con ON con.session_id = ses.session_idWHERE   er.session_id > 50AND @SessionID IS NULLOR er.session_id = @SessionIDORDER BY er.blocking_session_id DESC ,er.session_id END
*/--19.查看所有数据库用户登录信息
exec sp_helplogins --20.查看所有数据库用户所属的角色信息
exec sp_helpsrvrolemember--21.查看链接服务器
exec sp_helplinkedsrvlogin--22.查看远端数据库用户登录信息
exec sp_helpremotelogin--23.获取网络数据包统计信息
select
@@pack_received [输入数据包数量],
@@pack_sent [输出数据包数量],
@@packet_errors [错误包数量],
getdate() [当前时间]--24.检查数据库中的所有对象的分配和机构完整性是否存在错误
dbcc checkdb--25.查询文件组和文件
select df.[name],df.physical_name,df.[size],df.growth, f.[name][filegroup],f.is_default
from sys.database_files df join sys.filegroups f
on df.data_space_id = f.data_space_id --26.查看数据库中所有表的条数
select  b.name as tablename ,  a.rowcnt as datacount
from    sysindexes a ,  sysobjects b
where   a.id = b.id  and a.indid < 2  and objectproperty(b.id, 'IsMSShipped') = 0 --27.得到最耗时的前10条T-SQL语句
;with maco as
(     select top 10  plan_handle,  sum(total_worker_time) as total_worker_time ,  sum(execution_count) as execution_count ,  count(1) as sql_count  from sys.dm_exec_query_stats group by plan_handle  order by sum(total_worker_time) desc
)
select  t.text ,  a.total_worker_time ,  a.execution_count ,  a.sql_count
from    maco a  cross apply sys.dm_exec_sql_text(plan_handle) t --28. 查看SQL Server的实际内存占用
select * from sysperfinfo where counter_name like '%Memory%'--29.显示所有数据库的日志空间信息
dbcc sqlperf(logspace)--30.收缩数据库
dbcc shrinkdatabase(databaseName)