SQL Server常用语句

1. sqlserver查看实例级别的信息，使用SERVERPROPERTY函数

select SERVERPROPERTY ('propertyname')

2. 查看实例级别的某个参数XX的配置

select * from sys.configurations where name='XX'

3. 更改实例级别的某个参数XX的值

sp_configure 'XX','0' RECONFIGURE WITH OVERRIDE

sp_configure显示或更改当前服务器的全局配置设置。 
RECONFIGURE表示SQL Server不用重新启动就立即生效 。

使用sp_configure更改设置时，请使用RECONFIGURE语句使更改立即生效，否则更改将在SQL Server重新启动后生效。RECONFIGURE后面加WITH OVERRIDE表示不管这个值是不是符合要求都会生效，比如recovery interval的范围值是10--60对应sys.configurations.minimum是10、sys.configurations.maximum是60，如果sp_configure 'recovery interval', 75设置为75，超过了这个10--60规范，但是要让75生效，则必须加上WITH OVERRIDE。

4. sqlserver没有系统表可以查询所有数据库下面对象，以下只能在当前数据库下面查

select * from sys.all_objects --查询当前数据库的所有架构范围的对象select * from sys.sysobjects --查询当前数据库的所有对象--sys.all_objects、sys.sysobjects 这种的视图，在每个数据库的系统视图下面都有
select * from sys.databases --在当前数据库下可以查询到所有数据库信息，包含是否on状态select * from sys.sysdatabases --在当前数据库下可以查询到所有数据库信息，不包含是否on状态，这个系统视图会在后续的版本中删除--sys.databases、sys.sysdatabases这种的视图，在每个数据库的系统视图下面都有sys.processes --没有这个视图select * from sys.sysprocesses --在当前数据库下可以查询所有正在SQL Server 实例上运行的进程的相关信息，也就是所有数据库上的线程，这个系统视图会在后续的版本中删除

5. 全局系统视图、单个数据库系统视图

sys.database_files --每个存储在数据库本身中的数据库文件在表中占用一行。这是一个基于每个数据库的视图。sys.master_files --master 数据库中的每个文件对应一行。这是一个系统范围视图。--sys.database_files、sys.master_files这种的视图，在每个数据库的系统视图下面都有

6. 一些只存在msdb的系统表，而非系统视图

dbo.backupsetdbo.log_shipping_secondarydbo.restorehistorydbo.sysjobsdbo.sysjobhistory--这些系统表只存在msdb数据库，使用的时候必须加上msdb前缀

7. sp_lock、sp_who、sp_who2、sp_helptext等一些系统存储过程存在于每个数据库中

8. 报告有关锁的信息，会显示实例里面的所有数据库的锁信息、堵塞信息

sp_lock

9. 提供有关当前用户、 会话和进程的实例中的信息，可以看到会话的状态running、SUSPENDED、sleeping、rollback，sp_who2通过CPUTime、DiskIO可以判断对应的transaction是否很大 

sp_who 
sp_who2 
sp_who2 active (可选参数LoginName, 或active代表活动会话数) 

CPUTime (进程占用的总CPU时间) 
DiskIO (进程对磁盘读的总次数) 
LastBatch (客户最后一次调用存储过程或者执行查询的时间) 
ProgramName (用来初始化连接的应用程序名称，或者主机名)

 

10. 查看某个存储过程的内容

sp_helptext pro_name

11.显示某个线程号发送到sqlserver数据库的最后一个语句

 

DBCC INPUTBUFFER

12.假设查询到249被锁给堵塞了，查询被堵塞的SQL语句

DBCC INPUTBUFFER (249)

13. 查看某个数据库中是否存在活动事务，有活动事务就一定会写日志

DBCC OPENTRAN (dbname)

14. 监视日志空间

DBCC SQLPERF (LOGSPACE)

15. 查找无法重用日志中的空间的原因(日志无法截断导致日志文件越来越大，但是可用空间很小，无法收缩)

select name,log_reuse_wait_desc from sys.databases

16. 查看虚拟日志文件信息

DBCC LOGINFO

结果有多少行，代表有多少虚拟日志文件，活动的虚拟日志文件的状态(status)为2

17. 修复msdb数据库，比如ssms页面sql server agent丢失或看不了job view history等功能，说明msdb坏了，需要修复

dbcc checkdb (msdb);

18. 在您当前连接到的 SQL Server 数据库中生成一个手动检查点

CHECKPOINT [ checkpoint_duration ]--checkpoint_duration表示以秒为单位指定手动检查点完成所需的时间，一般不使用这个参数，让数据库自己控制

19. 查看数据库各种设置

select name,State,user_access,is_read_only,recovery_model from sys.databases

20. 查看某个数据库中是否存在会话

select DB_NAME(dbid),* from sys.sysprocesses where dbid=db_id('dbname')

21. 查询当前阻塞的所有请求

select * from sys.sysprocesses where blocked>0或SELECT t1.resource_type,db_name(t1.resource_database_id),t1.resource_associated_entity_id,t1.request_mode,t1.request_session_id,t2.blocking_session_id,t2.wait_duration_msFROM sys.dm_tran_locks as t1INNER JOIN sys.dm_os_waiting_tasks as t2ON t1.lock_owner_address = t2.resource_address;或select A.SPID as 被阻塞进程,a.CMD AS 正在执行的操作,b.spid AS 阻塞进程号,b.cmd AS 阻塞进程正在执行的操作from master..sysprocesses a,master..sysprocesses bwhere a.blocked<>0 and a.blocked= b.spid或SELECT session_Id,spid,ecid,DB_NAME (sp.dbid),nt_username,er.status,wait_type,[Individual Query] =SUBSTRING (qt.text,er.statement_start_offset / 2,( CASEWHEN er.statement_end_offset = -1THENLEN (CONVERT (NVARCHAR (MAX), qt.text)) * 2ELSEer.statement_end_offsetEND- er.statement_start_offset)/ 2),qt.text,program_name,Hostname,nt_domain,start_timeFROM sys.dm_exec_requests erINNER JOIN sys.sysprocesses sp ON er.session_id = sp.spidCROSS APPLY sys.dm_exec_sql_text (er.sql_handle) AS qtWHERE session_Id > 50 /* Ignore system spids.*/AND sp.blocked>0 AND session_Id NOT IN (@@SPID)或SELECT session_id ,status ,blocking_session_id,wait_type ,wait_time ,wait_resource,transaction_idFROM sys.dm_exec_requestsWHERE status = N'suspended';--sys.dm_exec_requests返回SQL Server 中正在执行的每个请求的信息

22. 查看哪些表被锁了，以及这些表被哪个进程锁了

select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableNamefrom sys.dm_tran_locks where resource_type='OBJECT' ORDER BY request_session_id ASC

23. 查询某个job是否被堵塞

select * from msdb.dbo.sysjobs where name='jobname'select a.program_name,a.* from master..sysprocesses a where a.program_name like '%0D1CE57E8AC5%'--把第一个语句查询到的job_id代入第二个语句的program_name

24. 检查SQL Agent是否开启

IF EXISTS (SELECT TOP 1 1FROM sys.sysprocessesWHERE program_name = 'SQLAgent - Generic Refresher')SELECT 'Running'ELSESELECT 'Not Running'

25. 查看活动线程执行的sql语句,并生成批量杀掉的语句

select 'KILL '+CAST(a.spid AS NVARCHAR(100)) AS KillCmd,REPLACE(hostname,' ','') as hostname ,replace(program_name,' ','') as program_name,REPLACE(loginame, ' ', '') AS loginame, db_name(a.dbid) AS DBname,spid,blocked,waittime/1000 as waittime,a.status,Replace(b.text,'''','''') as sqlmessage,cpufrom sys.sysprocesses as a with(nolock)cross apply sys.dm_exec_sql_text(sql_handle) as bwhere a.status<>'sleeping' AND a.spid<>@@SPID

26. 查看备份进度

SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time < 36000000THEN '0' ELSE '' END + RTRIM(estimated_completion_time/1000/3600)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%3600/60), 2)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining],b.text as tsql,*FROM SYS.DM_EXEC_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE 'Backup%' --and database_id=db_id('cardorder')--OR command LIKE 'RESTORE%'ORDER BY 2 DESC

27. 查看恢复进度

SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time < 36000000THEN '0' ELSE '' END + RTRIM(estimated_completion_time/1000/3600)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%3600/60), 2)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining],b.text as tsql,*FROM SYS.DM_EXEC_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE 'RESTORE%' --and database_id=db_id('cardorder')--OR command LIKE 'RESTORE%'ORDER BY 2 DESC

28. 查看数据库的最近备份信息

SELECT database_name,type,MAX(backup_finish_date) AS backup_finish_date FROM msdb.dbo.backupset GROUP BY database_name,type ORDER BY database_name,type备注：D 表示全备份，i 表示差异备份，L 表示日志备份

29. 查看数据库的历史备份记录，并生成restore语句

SELECTCONVERT(CHAR(100),SERVERPROPERTY('Servername'))AS Server,bs.database_name,bs.backup_start_date,bs.backup_finish_date,bs.expiration_date,CASE bs.typeWHEN 'D' THEN 'Database'WHEN 'L' THEN 'Log'END AS backup_type,bs.backup_size,bmf.logical_device_name,bmf.physical_device_name,bs.name AS backupset_name,bs.description,'RESTORE DATABASE ['+bs.database_name+'] FROM DISK=N'''+bmf.physical_device_name+ '''WITH NORECOVERY;'FROM msdb.dbo.backupmediafamily bmfINNER JOIN msdb.dbo.backupset bsON bmf.media_set_id=bs.media_set_idWHERE bs.backup_start_date>DATEADD(DAY,-1,GETDATE())ORDER BY bs.backup_finish_date

30. 查询XX库从YYYY-MM-DD日期开始的日志备份记录，并生成restore log的语句

SELECT TOP 1000       S.database_name [Database],       CASE [S].[type]             WHEN 'L'             THEN N'RESTORE LOG ' + QUOTENAME(S.database_name) + N' FROM DISK = ''' + F.physical_device_name + N''' WITH NORECOVERY;'       END [LogRestore],       F.physical_device_name,       S.[Type],       S.backup_start_date,       S.backup_finish_date FROM msdb.dbo.backupmediafamily F INNER JOIN msdb.dbo.backupset S ON S.media_set_id = F.media_set_id WHERE S.database_name = 'XX' AND       S.type = 'L' AND S.backup_start_date > 'YYYY-MM-DD' ORDER BY S.backup_start_date ASC

 31. 查询always on状态是否正常

select dc.database_name, d.synchronization_health_desc, d.synchronization_state_desc, d.database_state_desc from sys.dm_hadr_database_replica_states d join sys.availability_databases_cluster dc on d.group_database_id=dc.group_database_id and d.is_local=1

32. 查看mirror镜像信息

SELECTdb_name(database_id),mirroring_state_desc,mirroring_role_desc,mirroring_partner_name,mirroring_partner_instanceFROM sys.database_mirroring

33. 查询SSRS Report Subscriptions相关的job

SELECTb.name AS JobName, e.name, e.path, d.description, a.SubscriptionID, laststatus, eventtype, LastRunTime, date_created, date_modifiedFROMReportServer.dbo.ReportSchedule aJOIN msdb.dbo.sysjobs b ON CONVERT(SYSNAME,a.ScheduleID) = b.nameJOIN ReportServer.dbo.ReportSchedule c ON b.name = CONVERT(SYSNAME,c.ScheduleID)JOIN ReportServer.dbo.Subscriptions d ON c.SubscriptionID = d.SubscriptionIDJOIN ReportServer.dbo.Catalog e ON d.report_oid = e.itemidWHEREe.name = 'Report Name Goes Here'

34. 查看某个数据库的数据文件信息，就算是mirror从库的数据文件也可以查到，filestream目录也可以查到

SELECT db_name(database_id),* FROM master.sys.master_files WHERE database_id =DB_ID(N'DBA');

35. 查看某个数据文件信息

select b.name,a.type_desc,a.name,a.physical_name,a.size,a.max_size,a.is_percent_growth,a.growth from sys.master_files a join sys.databases b on a.database_id=b.database_id and a.physical_name like '%DTSWonda_1%'

36. 查询实例的数据文件总大小

SELECT sum(size*8/1024/1024) FROM master.sys.master_files

37. 查询某个目录中数据库使用的总大小

SELECT a.size*8/1024/1024 ,a.* FROM master.sys.master_files a WHERE physical_name like 'G:\DEFAULT.DATA%'

38. 查询某个目录中哪些数据库占用了8G以上容量

SELECT b.name dbname,a.size*8/1024/1024 sum_GB,a.type_desc,a.name datafilename,a.physical_name FROM master.sys.master_files a join sys.sysdatabases b on a.database_id=b.dbid and a.physical_name like 'G:\DEFAULT.DATA%' and a.size*8/1024/1024>8

39. 查询实例上的每个数据库的大小

SELECTDB_NAME(db.database_id) DatabaseName,(CAST(mfrows.RowSize AS FLOAT)*8)/1024 RowSizeMB,(CAST(mflog.LogSize AS FLOAT)*8)/1024 LogSizeMB,(CAST(mfstream.StreamSize AS FLOAT)*8)/1024 StreamSizeMB,(CAST(mftext.TextIndexSize AS FLOAT)*8)/1024 TextIndexSizeMBFROM sys.databases dbLEFT JOIN (SELECT database_id, SUM(size) RowSize FROM sys.master_files WHERE type = 0 GROUP BY database_id, type) mfrows ON mfrows.database_id = db.database_idLEFT JOIN (SELECT database_id, SUM(size) LogSize FROM sys.master_files WHERE type = 1 GROUP BY database_id, type) mflog ON mflog.database_id = db.database_idLEFT JOIN (SELECT database_id, SUM(size) StreamSize FROM sys.master_files WHERE type = 2 GROUP BY database_id, type) mfstream ON mfstream.database_id = db.database_idLEFT JOIN (SELECT database_id, SUM(size) TextIndexSize FROM sys.master_files WHERE type = 4 GROUP BY database_id, type) mftext ON mftext.database_id = db.database_id

40. 查询总耗CPU最多的前3个SQL，且最近5天出现过

SELECT TOP 3total_worker_time/1000 AS [总消耗CPU 时间(ms)],execution_count [运行次数],qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],last_execution_time AS [最后一次执行时间],max_worker_time /1000 AS [最大执行时间(ms)],SUBSTRING(qt.text,qs.statement_start_offset/2+1,(CASE WHEN qs.statement_end_offset = -1THEN DATALENGTH(qt.text)ELSE qs.statement_end_offset END -qs.statement_start_offset)/2 + 1)AS [使用CPU的语法], qt.text [完整语法],qt.dbid, dbname=db_name(qt.dbid),qt.objectid,object_name(qt.objectid,qt.dbid) ObjectNameFROM sys.dm_exec_query_stats qs WITH(nolock)CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qtWHERE execution_count>1 and last_execution_time>dateadd(dd,-5,getdate())ORDER BY total_worker_time DESC

41. 查询平均耗CPU最多的前3个SQL，且最近5小时出现过

SELECT TOP 3total_worker_time/1000 AS [总消耗CPU 时间(ms)],execution_count [运行次数],qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],last_execution_time AS [最后一次执行时间],min_worker_time /1000 AS [最小执行时间(ms)],max_worker_time /1000 AS [最大执行时间(ms)],SUBSTRING(qt.text,qs.statement_start_offset/2+1,(CASE WHEN qs.statement_end_offset = -1THEN DATALENGTH(qt.text)ELSE qs.statement_end_offset END -qs.statement_start_offset)/2 + 1)AS [使用CPU的语法], qt.text [完整语法],qt.dbid, dbname=db_name(qt.dbid),qt.objectid,object_name(qt.objectid,qt.dbid) ObjectNameFROM sys.dm_exec_query_stats qs WITH(nolock)CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qtWHERE execution_count>1 and last_execution_time>dateadd(hh,-5,getdate())ORDER BY (qs.total_worker_time/qs.execution_count/1000) DESC

42. 查看当前最耗资源的10个SQL及其spid

SELECT TOP 10session_id,request_id,start_time AS '开始时间',status AS '状态',command AS '命令',d_sql.text AS 'sql语句', DB_NAME(database_id) AS '数据库名',blocking_session_id AS '正在阻塞其他会话的会话ID',wait_type AS '等待资源类型',wait_time AS '等待时间',wait_resource AS '等待的资源',reads AS '物理读次数',writes AS '写次数',logical_reads AS '逻辑读次数',row_count AS '返回结果行数'FROM sys.dm_exec_requests AS d_requestCROSS APPLYsys.dm_exec_sql_text(d_request.sql_handle) AS d_sqlWHERE session_id>50ORDER BY cpu_time DESC--前50号session_id一般是系统后台进程，sys.dm_exec_requests的status显示为background

43. 查询某个存储过程被哪些job调用了

SELECT *FROM msdb.dbo.sysjobs JOB WITH( NOLOCK)INNER JOIN msdb. dbo.sysjobsteps STP WITH(NOLOCK )ON STP .job_id = JOB .job_idWHERE STP .command LIKE N'%sp_name%'--以上要查询某个job被哪个job调用了，把sp_name存储过程名字改成job_name作业名字即可

44. 命令执行某个job

EXECUTE msdb.dbo.sp_start_job N'job_name' 

45. 查询某表标识列的列名

SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.columns WHERE TABLE_NAME='表名' AND COLUMNPROPERTY(OBJECT_ID('表名'),COLUMN_NAME,'IsIdentity')=1

46. 获取标识列的种子值

SELECT IDENT_SEED ('表名')

47. 获取标识列的递增量

SELECT IDENT_INCR('表名')

48. 获取指定表中最后生成的标识值

SELECT IDENT_CURRENT('表名')

49. 重新设置标识种子值为XX

DBCC CHECKIDENT (表名, RESEED, XX)

50. 升级前，查询服务器名、实例名、版本号 

select SERVERPROPERTY('machinename'),@@SERVERNAME,SERVERPROPERTY ('edition'),@@version

51. 用户被grant这样操作赋予的权限 

use dbname exec sp_helprotect @username = 'username'

52. 授予某个用户执行某个数据库的sp的权限

use dbname grant execute to "username"

53. always on

-查看集群各节点的信息，包含节点成员的名称，类型，状态，拥有的投票仲裁数

SELECT * FROM  sys.dm_hadr_cluster_members;

-查看集群各节点的信息，包含节点成员的名称，节点成员上的sql实例名称

select * from sys.dm_hadr_instance_node_map

-查看WSFC(windows server故障转移群集)的信息，包含集群名称，仲裁类型，仲裁状态

SELECT * FROM SYS.dm_hadr_cluster;

-查看AG名称

select * from sys.dm_hadr_name_id_map

-查看集群各节点的子网信息，包含节点成员的名称，子网段，子网掩码

SELECT * FROM  sys.dm_hadr_cluster_networks;

-查看侦听ip

select * from sys.availability_group_listeners;

-查看主从各节点的状态

select d.is_local,dc.database_name, d.synchronization_health_desc, d.synchronization_state_desc, d.database_state_desc from sys.dm_hadr_database_replica_states d join sys.availability_databases_cluster dc on d.group_database_id=dc.group_database_id;

-查看辅助副本(传说中的从库)延迟多少M日志量

select db_name(database_id),log_send_queue_size/1024 delay_M,* from sys.dm_hadr_database_replica_states where is_primary_replica=0;

select ar.replica_server_name, db_name(drs.database_id),drs.truncation_lsn, drs.log_send_queue_size, drs.redo_queue_size from sys.dm_hadr_database_replica_states drs join sys.availability_replicas ar on drs.replica_id=ar.replica_id where drs.is_local=0;
select ar.replica_server_name, db_name(drs.database_id),drs.truncation_lsn, drs.log_send_queue_size,drs.log_send_rate, drs.redo_queue_size,drs.redo_rate from sys.dm_hadr_database_replica_states drs join sys.availability_replicas ar on drs.replica_id=ar.replica_id where drs.is_local=0--log_send_queue_size 主数据库中尚未发送到辅助数据库的日志记录量 (KB)--log_send_rate 在最后一个活动期间，以千字节 (KB) 的平均主副本发送实例数据的速率/秒--redo_queue_size 在最后一个活动期间，以千字节 (KB) 的平均主副本发送实例数据的速率/秒--redo_rate 平均千字节 (KB) 中的给定辅助数据库做的日志记录速率 / 秒

54. 查询实例的FILESTREAM 使用的DIRECTORY_NAME 

SELECT  SERVERPROPERTY('FilestreamShareName') 

55. 查询FILETABLE表的数据库对应的DIRECTORY_NAME

select db_name(database_id),* from sys.database_filestream_options

仅仅使用filestream功能时，数据库不需要对应的DIRECTORY_NAME 

56. 查询FILETABLE表对应的DIRECTORY_NAME 

select object_name(object_id),* from sys.filetables

57. 查询filetable表testdb.dbo.table1中的文件完整路径名称 

SELECT FileTableRootPath()+[file_stream].GetFileNamespacePath(),name FROM testdb.dbo.table1

58. 查询所有job的状态是否running 

SELECT sj.Name,     CASE         WHEN sja.start_execution_date IS NULL THEN 'Not running'         WHEN sja.start_execution_date IS NOT NULL AND sja.stop_execution_date IS NULL THEN 'Running'         WHEN sja.start_execution_date IS NOT NULL AND sja.stop_execution_date IS NOT NULL THEN 'Not running'     END AS 'RunStatus' FROM msdb.dbo.sysjobs sj JOIN msdb.dbo.sysjobactivity sja ON sj.job_id = sja.job_id WHERE session_id = (     SELECT MAX(session_id) FROM msdb.dbo.sysjobactivity) order by RunStatus desc;

59. 锁表的四种用法

TABLOCKX SELECT * FROM table WITH (TABLOCKX)

查询过程中，其他会话无法查询、更新此表，直到查询过程结束

TABLOCK SELECT * FROM table WITH (TABLOCK)

查询过程中，其他会话可以查询，但是无法更新此表，直到查询过程结束 

HOLDLOCK SELECT * FROM table WITH (HOLDLOCK)

查询过程中，其他会话可以查询，但是无法更新此表，直到查询过程结束

NOLOCK SELECT * FROM table WITH (NOLOCK)

查询过程中，其他会话可以查询、更新此表

60. 查询某个发布XX，发布的数据库对象的2种方法

发布数据库上执行(数据来源这三张表distribution.dbo.MSpublications、distribution.dbo.MSarticles、sysarticlecolumns) 

select a.article,a.source_object,a.destination_object,b.colid from (select article,article_id,source_object,destination_object from [distribution].[dbo].MSarticles where publication_id in ( select publication_id from [distribution].[dbo].MSpublications where publication='XX' ) ) a inner join (select * from replicate1.dbo.sysarticlecolumns) b on a.article_id=b.artid order by a.article

订阅数据库上执行 

select distinct article  from MSreplication_objects where publication='XX'

61. 查询发布信息，发布名称，发布名称对应的发布序号 

Select * from distribution.dbo.MSpublications 

62. 查询发布名里面的发布对象的信息，包含表、视图、存储过程等 

Select * from  distribution.dbo.MSarticles

63. 监控发布订阅是否有异常，执行以下5条语句即可

select * from [distribution].[dbo].[MSlogreader_history] WHERE error_id != 0 AND [time] >= DATEADD(HOUR, -1, GETDATE()) select * from [distribution].[dbo].[MSdistribution_history] WHERE error_id != 0 AND [time] >= DATEADD(HOUR, -1, GETDATE()) select * from [distribution].[dbo].[MSsnapshot_history] WHERE error_id != 0 AND [time] >= DATEADD(HOUR, -1, GETDATE()) select * from [distribution].[dbo].MSrepl_errors order by 2 descselect * from msdb.dbo.sysreplicationalerts order by 7 desc

64. 查询XX表的索引信息 

SELECT a.name index_name,c.name table_name,d.name column_name FROM sysindexes a JOIN sysindexkeys b ON a.id=b.id AND a.indid=b.indid JOIN sysobjects c ON b.id=c.id JOIN syscolumns d ON b.id=d.id= AND b.colid=d.colid WHERE a.indid NOT IN(0,255) AND c.name in ('XX')

65. 生成sql语句的执行计划(select XXX为例，当然select XXX也可以换成执行存储过程比如exec pro_XXX，都是只生成执行计划，不产生结果集，不会执行存储过程) 

SET SHOWPLAN_ALL ON; GO select XXX GO SET SHOWPLAN_ALL OFF; GO 或 SET SHOWPLAN_XML ON; GO select XXX GO SET SHOWPLAN_XML OFF; GO

66. 查询名称为XXX的job的最后一次运行成功的时间 

SELECT TOP 1 CONVERT(DATETIME, RTRIM(run_date))+ ((run_time / 10000 * 3600) + ((run_time % 10000) / 100 * 60) + (run_time % 10000) % 100) / (86399.9964) FROM msdb.dbo.sysjobhistory jobhis inner join msdb.dbo.sysjobs  jobs on jobhis.job_id = jobs.job_id AND jobhis.step_id = 0 AND jobhis.run_status = 1 and jobs.name='XXX' ORDER BY 1 DESC

67. 查询某张分区表的总行数和大小，比如表为crm.EmailLog 

exec sp_spaceused 'crm.EmailLog';

68. 查询某张分区表的信息，每个分区有多少行，比如表为crm.EmailLog 

select convert(varchar(50), ps.name ) as partition_scheme, p.partition_number, convert(varchar(10), ds2.name ) as filegroup, convert(varchar(19), isnull(v.value, ''), 120) as range_boundary, str(p.rows, 9) as rows from sys.indexes i join sys.partition_schemes ps on i.data_space_id = ps.data_space_id join sys.destination_data_spaces dds on ps.data_space_id = dds.partition_scheme_id join sys.data_spaces ds2 on dds.data_space_id = ds2.data_space_id join sys.partitions p on dds.destination_id = p.partition_number and p.object_id = i.object_id and p.index_id = i.index_id join sys.partition_functions pf on ps.function_id = pf.function_id LEFT JOIN sys.Partition_Range_values v on pf.function_id = v.function_id and v.boundary_id = p.partition_number - pf.boundary_value_on_right WHERE i.object_id = object_id('crm.EmailLog') and i.index_id in (0, 1) order by p.partition_number 

69. 查询分区函数 

select * from sys.partition_functions

70. 查看分区架构 

select * from sys.partition_schemes

71. 查询ssis包的信息 

select * from msdb.dbo.sysssispackages

72. 查询某张表里的索引的大小,如下示例表为dbo.table1 

SELECT     i.name              AS IndexName,     SUM(page_count * 8) AS IndexSizeKB FROM sys.dm_db_index_physical_stats(     db_id(), object_id('dbo.table1'), NULL, NULL, 'DETAILED') AS s JOIN sys.indexes AS i ON s.[object_id] = i.[object_id] AND s.index_id = i.index_id GROUP BY i.name ORDER BY i.name

73. 重建表上的所有索引

alter index all on table_name rebuild with (online=on)

重建表上的某个索引

alter index index_name on table_name rebuild with (online=on)

重新组织表上的所有索引 

alter index all on table_name reorganize

重新组织表上的某个索引 

alter index index_name on table_name reorganize

74. 查看数据文件可收缩空间，结果见Availabesize_MB字段值 

select name ,size*8/1024 as Totalsize_MB ,CAST(FILEPROPERTY(name,'SpaceUsed') AS int)*8/1024 as Usedsize_MB, size*8/1024 - CAST(FILEPROPERTY(name, 'SpaceUsed') AS int)*8/1024 AS Availabesize_MB  from sys.master_files where database_id=db_id(N'DBNAME')

75. 查询某个表中的全部索引的信息 

declare @tableName varchar(50) = 'LbaListAlertDetail' declare @tableId int 
select @tableId = object_id from sys.objects where name = @tableName 
SELECT OBJECT_NAME(IX.OBJECT_ID) Table_Name        ,IX.name AS Index_Name        ,IX.type_desc Index_Type        ,SUM(PS.[used_page_count]) * 8 IndexSizeKB        ,IXUS.user_seeks AS NumOfSeeks        ,IXUS.user_scans AS NumOfScans        ,IXUS.user_lookups AS NumOfLookups        ,IXUS.user_updates AS NumOfUpdates        ,IXUS.last_user_seek AS LastSeek        ,IXUS.last_user_scan AS LastScan        ,IXUS.last_user_lookup AS LastLookup        ,IXUS.last_user_update AS LastUpdate FROM sys.indexes IX INNER JOIN sys.dm_db_index_usage_stats IXUS ON IXUS.index_id = IX.index_id AND IXUS.OBJECT_ID = IX.OBJECT_IDINNER JOIN sys.dm_db_partition_stats PS on PS.object_id=IX.object_id WHERE OBJECTPROPERTY(IX.OBJECT_ID,'IsUserTable') = 1     and IX.OBJECT_ID = @tableId GROUP BY OBJECT_NAME(IX.OBJECT_ID) ,IX.name ,IX.type_desc ,IXUS.user_seeks ,IXUS.user_scans ,IXUS.user_lookups,IXUS.user_updates ,IXUS.last_user_seek ,IXUS.last_user_scan ,IXUS.last_user_lookup ,IXUS.last_user_update

sqlserver中类似oracle的dba_source的视图是sys.sql_modules

76. 查询某个数据库下的表数据占用磁盘容量最大的10张表 

use XX if exists(select 1 from tempdb..sysobjects where id=object_id('tempdb..#tabName') and xtype='u') drop table #tabName go create table #tabName( table_name varchar(100), rowsNum varchar(100), reserved_size varchar(100), data_size varchar(100), index_size varchar(100), unused_size varchar(100) ) declare @name varchar(100) declare cur cursor for select name from sysobjects where xtype='u' order by name open cur fetch next from cur into @name while @@fetch_status=0 begin     insert into #tabName     exec sp_spaceused @name     fetch next from cur into @name end close cur deallocate cur 
select top 10 table_name, data_size,rowsNum ,index_size,unused_size ,reserved_size,convert(int,SUBSTRING(data_size,0,LEN(data_size)-2)) size from #tabName ORDER BY size desc

或 select top 10 a.tablename,a.SCHEMANAME,sum(a.TotalSpaceMB) TotalSpaceMB,sum(a.RowCounts) RowCounts from ( SELECT     t.NAME AS TableName,     s.Name AS SchemaName,     p.rows AS RowCounts,     SUM(a.total_pages) * 8 AS TotalSpaceKB,     CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB,     SUM(a.used_pages) * 8 AS UsedSpaceKB,     CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB,     (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB,     CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB FROM     sys.tables t INNER JOIN           sys.indexes i ON t.OBJECT_ID = i.object_id INNER JOIN     sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id INNER JOIN     sys.allocation_units a ON p.partition_id = a.container_id LEFT OUTER JOIN     sys.schemas s ON t.schema_id = s.schema_id WHERE     t.NAME NOT LIKE 'dt%'     AND t.is_ms_shipped = 0     AND i.OBJECT_ID > 255 GROUP BY     t.Name, s.Name, p.Rows) a GROUP BY  a.tablename,a.SCHEMANAME order by sum(a.TotalSpaceMB) desc --这个比上一个专业 

77. 查询某个数据库中是否有create index '+name+ CHAR(10) 

select 'use '+name+ CHAR(10) +'select DB_NAME(),OBJECT_NAME(OBJECT_ID),definition from '+name+'.sys.sql_modulesWHERE objectproperty(OBJECT_ID, ''IsProcedure'') = 1 AND definition like ''%online%=%on%'' and definition like ''%index%''' from sys.databases; 

78. 根据id号查询某个数据库名 

SELECT DB_NAME(18) 

根据id号查询某个对象名 

SELECT OBJECT_NAME(1769220894)

79. 查看收缩的进度100%，此语句要到指定的数据库下执行

SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time < 36000000THEN '0' ELSE '' END + RTRIM(estimated_completion_time/1000/3600)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%3600/60), 2)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining],b.text as tsql,*FROM SYS.DM_EXEC_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE 'DbccFilesCompact%' --and database_id=db_id('cardorder')ORDER BY 2 DESC

80. 查看重新组织索引的100%进度

SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time < 36000000THEN '0' ELSE '' END + RTRIM(estimated_completion_time/1000/3600)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%3600/60), 2)+ ':' + RIGHT('0' + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining],b.text as tsql,*FROM SYS.DM_EXEC_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE '%REORGANIZE%' --and database_id=db_id('cardorder')ORDER BY 2 DESC

81. 查看存储过程的执行计划 

SELECT         d.object_id ,         DB_NAME(d.database_id) DBName ,         OBJECT_NAME(object_id, database_id) 'SPName' ,         d.cached_time ,         d.last_execution_time ,         d.total_elapsed_time/1000000    AS total_elapsed_time,         d.total_elapsed_time / d.execution_count/1000000                                         AS [avg_elapsed_time] ,         d.last_elapsed_time/1000000     AS last_elapsed_time,         d.execution_count ,         d.total_physical_reads ,         d.last_physical_reads ,         d.total_logical_writes ,         d.last_logical_reads ,         et.text SQLText ,         eqp.query_plan executionplan FROM    sys.dm_exec_procedure_stats AS d CROSS APPLY sys.dm_exec_sql_text(d.sql_handle) et CROSS APPLY sys.dm_exec_query_plan(d.plan_handle) eqp WHERE   OBJECT_NAME(object_id, database_id) = 'xxxx' ORDER BY [total_worker_time] DESC; 

82. 查看当前用户 

select system_user 

83. 查询ddl修改操作的记录 

-执行如下找到trace文件的目录和名称 

select * from Sys.traces

-使用sqlserver profiler工具打开trace文件，就可以查到相关记录

 

转自：https://mp.weixin.qq.com/s/CL86YqZshU_frLp_3tUJVw