SQL Server 常用近百条SQL语句

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

1. 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

1. sp_configure ‘XX’,’0′
2. 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

1. select * from sys.all_objects –查询当前数据库的所有架构范围的对象
2. select * from sys.sysobjects –查询当前数据库的所有对象
3. –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
6. 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
7. 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
8. –sys.databases、sys.sysdatabases这种的视图，在每个数据库的系统视图下面都有
9. sys.processes –没有这个视图
10. 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

1. 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。
2. 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。
3. –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

1. dbo.backupset
2. dbo.log_shipping_secondary
3. dbo.restorehistory
4. dbo.sysjobs
5. dbo.sysjobhistory
6. –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

1. CHECKPOINT [ checkpoint_duration ]
2. –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

1. select * from sys.sysprocesses where blocked>0
2. 或
3. SELECT t1.resource_type,db_name(t1.resource_database_id),t1.resource_associated_entity_id,t1.request_mode,
4. t1.request_session_id,t2.blocking_session_id,t2.wait_duration_ms
5. FROM sys.dm_tran_locks as t1
6. INNER JOIN sys.dm_os_waiting_tasks as t2
7. ON t1.lock_owner_address = t2.resource_address;
8. 或
9. 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
10. from master..sysprocesses a,master..sysprocesses b
11. where a.blocked<>0 and a.blocked= b.spid
12. 或
13. SELECT session_Id,spid,ecid,DB_NAME (sp.dbid),nt_username,er.status,wait_type,
14. [Individual Query] =SUBSTRING (qt.text,er.statement_start_offset / 2,
15. ( CASE
16. WHEN er.statement_end_offset = -1
17. THEN
18. LEN (CONVERT (NVARCHAR (MAX), qt.text)) * 2
19. ELSE
20. er.statement_end_offset
21. END
22. – er.statement_start_offset)
23. / 2),
24. qt.text,program_name,Hostname,nt_domain,start_time
25. FROM sys.dm_exec_requests er
26. INNER JOIN sys.sysprocesses sp ON er.session_id = sp.spid
27. CROSS APPLY sys.dm_exec_sql_text (er.sql_handle) AS qt
28. WHERE session_Id > 50 /* Ignore system spids.*/
29. AND sp.blocked>0 AND session_Id NOT IN (@@SPID)
30. 或
31. SELECT session_id ,status ,blocking_session_id
32. ,wait_type ,wait_time ,wait_resource
33. ,transaction_id
34. FROM sys.dm_exec_requests
35. WHERE status = N‘suspended’;
36. –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

1. select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName
2. from 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

1. select * from msdb.dbo.sysjobs where name=‘jobname’
2. select a.program_name,a.* from master..sysprocesses a where a.program_name like ‘%0D1CE57E8AC5%’
3. –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

1. IF EXISTS (
2. SELECT TOP 1 1
3. FROM sys.sysprocesses
4. WHERE program_name = ‘SQLAgent – Generic Refresher’
5. )
6. SELECT ‘Running’
7. ELSE
8. SELECT ‘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

1. select ‘KILL ‘+CAST(a.spid AS NVARCHAR(100)) AS KillCmd,REPLACE(hostname,‘ ‘,”) as hostname ,replace(program_name,‘ ‘,”) as program_name
2. ,REPLACE(loginame, ‘ ‘, ”) AS loginame, db_name(a.dbid) AS DBname,spid,blocked,waittime/1000 as waittime
3. ,a.status,Replace(b.text,””,””) as sqlmessage,cpu
4. from sys.sysprocesses as a with(nolock)
5. cross apply sys.dm_exec_sql_text(sql_handle) as b
6. where a.status<>‘sleeping’ AND a.spid<>@@SPID

26. 查看备份进度

1. SELECT DB_NAME(database_id) AS Exec_DB
2. ,percent_complete
3. ,CASE WHEN estimated_completion_time < 36000000
4. THEN ‘0’ ELSE ” END + RTRIM(estimated_completion_time/1000/3600)
5. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%3600/60), 2)
6. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining]
7. ,b.text as tsql
8. ,*
9. FROM SYS.DM_EXEC_REQUESTS
10. cross apply sys.dm_exec_sql_text(sql_handle) as b
11. WHERE command LIKE ‘Backup%’ –and database_id=db_id(‘cardorder’)
12. –OR command LIKE ‘RESTORE%’
13. ORDER BY 2 DESC

27. 查看恢复进度

1. SELECT DB_NAME(database_id) AS Exec_DB
2. ,percent_complete
3. ,CASE WHEN estimated_completion_time < 36000000
4. THEN ‘0’ ELSE ” END + RTRIM(estimated_completion_time/1000/3600)
5. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%3600/60), 2)
6. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining]
7. ,b.text as tsql
8. ,*
9. FROM SYS.DM_EXEC_REQUESTS
10. cross apply sys.dm_exec_sql_text(sql_handle) as b
11. WHERE command LIKE ‘RESTORE%’ –and database_id=db_id(‘cardorder’)
12. –OR command LIKE ‘RESTORE%’
13. ORDER BY 2 DESC

28. 查看数据库的最近备份信息

1. 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
2. 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

1. SELECT
2. CONVERT(CHAR(100),SERVERPROPERTY(‘Servername’))AS Server,
3. bs.database_name,
4. bs.backup_start_date,
5. bs.backup_finish_date,
6. bs.expiration_date,
7. CASE bs.type
8. WHEN ‘D’ THEN ‘Database’
9. WHEN ‘L’ THEN ‘Log’
10. END AS backup_type,
11. bs.backup_size,
12. bmf.logical_device_name,
13. bmf.physical_device_name,
14. bs.name AS backupset_name,
15. bs.description,
16. ‘RESTORE DATABASE [‘+bs.database_name+‘] FROM DISK=N”’
17. +bmf.physical_device_name+ ”’WITH NORECOVERY;’
18. FROM msdb.dbo.backupmediafamily bmf
19. INNER JOIN msdb.dbo.backupset bs
20. ON bmf.media_set_id=bs.media_set_id
21. WHERE bs.backup_start_date>DATEADD(DAY,-1,GETDATE())
22. 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

1. SELECT TOP 1000
2. S.database_name [Database],
3. CASE [S].[type]
4. WHEN ‘L’
5. THEN N‘RESTORE LOG ‘ + QUOTENAME(S.database_name) + N‘ FROM DISK = ”’ + F.physical_device_name + N”’ WITH NORECOVERY;’
6. END [LogRestore],
7. F.physical_device_name,
8. S.[Type],
9. S.backup_start_date,
10. S.backup_finish_date
11. FROM msdb.dbo.backupmediafamily F
12. INNER JOIN msdb.dbo.backupset S
13. ON S.media_set_id = F.media_set_id
14. WHERE S.database_name = ‘XX’ AND
15. 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

1. SELECT
2. db_name(database_id),
3. mirroring_state_desc,
4. mirroring_role_desc,
5. mirroring_partner_name,
6. mirroring_partner_instance
7. FROM sys.database_mirroring

33. 查询SSRS Report Subscriptions相关的job

1. SELECT
2. b.name AS JobName
3. , e.name
4. , e.path
5. , d.description
6. , a.SubscriptionID
7. , laststatus
8. , eventtype
9. , LastRunTime
10. , date_created
11. , date_modified
12. FROM
13. ReportServer.dbo.ReportSchedule a
14. JOIN msdb.dbo.sysjobs b ON CONVERT(SYSNAME,a.ScheduleID) = b.name
15. JOIN ReportServer.dbo.ReportSchedule c ON b.name = CONVERT(SYSNAME,c.ScheduleID)
16. JOIN ReportServer.dbo.Subscriptions d ON c.SubscriptionID = d.SubscriptionID
17. JOIN ReportServer.dbo.Catalog e ON d.report_oid = e.itemid
18. WHERE
19. e.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

1. SELECT
2. DB_NAME(db.database_id) DatabaseName,
3. (CAST(mfrows.RowSize AS FLOAT)*8)/1024 RowSizeMB,
4. (CAST(mflog.LogSize AS FLOAT)*8)/1024 LogSizeMB,
5. (CAST(mfstream.StreamSize AS FLOAT)*8)/1024 StreamSizeMB,
6. (CAST(mftext.TextIndexSize AS FLOAT)*8)/1024 TextIndexSizeMB
7. FROM sys.databases db
8. LEFT 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_id
9. LEFT 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_id
10. LEFT 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_id
11. LEFT 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

1. SELECT TOP 3
2. total_worker_time/1000 AS [总消耗CPU 时间(ms)],execution_count [运行次数],
3. qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],
4. last_execution_time AS [最后一次执行时间],max_worker_time /1000 AS [最大执行时间(ms)],
5. SUBSTRING(qt.text,qs.statement_start_offset/2+1,
6. (CASE WHEN qs.statement_end_offset = -1
7. THEN DATALENGTH(qt.text)
8. ELSE qs.statement_end_offset END –qs.statement_start_offset)/2 + 1)
9. AS [使用CPU的语法], qt.text [完整语法],
10. qt.dbid, dbname=db_name(qt.dbid),
11. qt.objectid,object_name(qt.objectid,qt.dbid) ObjectName
12. FROM sys.dm_exec_query_stats qs WITH(nolock)
13. CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
14. WHERE execution_count>1 and last_execution_time>dateadd(dd,-5,getdate())
15. 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

1. SELECT TOP 3
2. total_worker_time/1000 AS [总消耗CPU 时间(ms)],execution_count [运行次数],
3. qs.total_worker_time/qs.execution_count/1000 AS [平均消耗CPU 时间(ms)],
4. last_execution_time AS [最后一次执行时间],min_worker_time /1000 AS [最小执行时间(ms)],
5. max_worker_time /1000 AS [最大执行时间(ms)],
6. SUBSTRING(qt.text,qs.statement_start_offset/2+1,
7. (CASE WHEN qs.statement_end_offset = -1
8. THEN DATALENGTH(qt.text)
9. ELSE qs.statement_end_offset END –qs.statement_start_offset)/2 + 1)
10. AS [使用CPU的语法], qt.text [完整语法],
11. qt.dbid, dbname=db_name(qt.dbid),
12. qt.objectid,object_name(qt.objectid,qt.dbid) ObjectName
13. FROM sys.dm_exec_query_stats qs WITH(nolock)
14. CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
15. WHERE execution_count>1 and last_execution_time>dateadd(hh,-5,getdate())
16. 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

1. SELECT TOP 10
2. session_id,request_id,start_time AS ‘开始时间’,status AS ‘状态’,
3. command AS ‘命令’,d_sql.text AS ‘sql语句’, DB_NAME(database_id) AS ‘数据库名’,
4. blocking_session_id AS ‘正在阻塞其他会话的会话ID’,
5. wait_type AS ‘等待资源类型’,wait_time AS ‘等待时间’,wait_resource AS ‘等待的资源’,
6. reads AS ‘物理读次数’,writes AS ‘写次数’,logical_reads AS ‘逻辑读次数’,
7. row_count AS ‘返回结果行数’
8. FROM sys.dm_exec_requests AS d_request
9. CROSS APPLY
10. sys.dm_exec_sql_text(d_request.sql_handle) AS d_sql
11. WHERE session_id>50
12. ORDER BY cpu_time DESC
13. –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

1. SELECT *
2. FROM msdb.dbo.sysjobs JOB WITH( NOLOCK)
3. INNER JOIN msdb. dbo.sysjobsteps STP WITH(NOLOCK )
4. ON STP .job_id = JOB .job_id
5. WHERE STP .command LIKE N‘%sp_name%’
6. –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

1. use dbname
2. exec sp_helprotect @username = ‘username’

52. 授予某个用户执行某个数据库的sp的权限

1. use dbname
2. 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

1. select d.is_local,dc.database_name, d.synchronization_health_desc,
2. d.synchronization_state_desc, d.database_state_desc
3. from sys.dm_hadr_database_replica_states d
4. join sys.availability_databases_cluster dc
5. 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

1. select db_name(database_id),log_send_queue_size/1024 delay_M,*
2. from sys.dm_hadr_database_replica_states where is_primary_replica=0;
7. select ar.replica_server_name, db_name(drs.database_id),drs.truncation_lsn,
8. drs.log_send_queue_size, drs.redo_queue_size
9. from sys.dm_hadr_database_replica_states drs
10. join sys.availability_replicas ar on drs.replica_id=ar.replica_id where drs.is_local=0;
13. select ar.replica_server_name, db_name(drs.database_id),drs.truncation_lsn,
14. drs.log_send_queue_size,drs.log_send_rate, drs.redo_queue_size,drs.redo_rate
15. from sys.dm_hadr_database_replica_states drs
16. join sys.availability_replicas ar on drs.replica_id=ar.replica_id where drs.is_local=0
17. –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)
18. –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
19. –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
20. –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

1. 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

1. 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

1. SELECT sj.Name,
2. CASE
3. WHEN sja.start_execution_date IS NULL THEN ‘Not running’
4. WHEN sja.start_execution_date IS NOT NULL AND sja.stop_execution_date IS NULL THEN ‘Running’
5. WHEN sja.start_execution_date IS NOT NULL AND sja.stop_execution_date IS NOT NULL THEN ‘Not running’
6. END AS ‘RunStatus’
7. FROM msdb.dbo.sysjobs sj
8. JOIN msdb.dbo.sysjobactivity sja
9. ON sj.job_id = sja.job_id
10. WHERE session_id = (
11. SELECT MAX(session_id) FROM msdb.dbo.sysjobactivity) order by RunStatus desc;

59. 锁表的四种用法

1. TABLOCKX
2. 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

1. TABLOCK
2. 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

1. HOLDLOCK
2. 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

1. NOLOCK
2. 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)

1. select a.article,a.source_object,a.destination_object,b.colid from
2. (select article,article_id,source_object,destination_object
3. from [distribution].[dbo].MSarticles where publication_id in
4. ( select publication_id from
5. [distribution].[dbo].MSpublications where publication=‘XX’
6. )
7. ) a
8. inner join
9. (select * from replicate1.dbo.sysarticlecolumns) b
10. 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

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

64. 查询XX表的索引信息

1. SELECT a.name index_name,c.name table_name,d.name column_name
2. FROM sysindexes a JOIN sysindexkeys b
3. ON a.id=b.id AND a.indid=b.indid
4. JOIN sysobjects c
5. ON b.id=c.id
6. JOIN syscolumns d
7. ON b.id=d.id= AND b.colid=d.colid
8. 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)

1. SET SHOWPLAN_ALL ON;
2. GO
3. select XXX
4. GO
5. SET SHOWPLAN_ALL OFF;
6. GO
7. 或
8. SET SHOWPLAN_XML ON;
9. GO
10. select XXX
11. GO
12. SET SHOWPLAN_XML OFF;
13. GO

66. 查询名称为XXX的job的最后一次运行成功的时间

1. SELECT TOP 1 CONVERT(DATETIME, RTRIM(run_date))+ ((run_time / 10000 * 3600) + ((run_time % 10000) / 100 * 60) + (run_time % 10000) % 100) / (86399.9964)
2. FROM msdb.dbo.sysjobhistory jobhis inner join msdb.dbo.sysjobs jobs
3. on jobhis.job_id = jobs.job_id AND jobhis.step_id = 0 AND jobhis.run_status = 1
4. and jobs.name=‘XXX’
5. 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

1. select convert(varchar(50), ps.name
2. ) as partition_scheme,
3. p.partition_number,
4. convert(varchar(10), ds2.name
5. ) as filegroup,
6. convert(varchar(19), isnull(v.value, ”), 120) as range_boundary,
7. str(p.rows, 9) as rows
8. from sys.indexes i
9. join sys.partition_schemes ps on i.data_space_id = ps.data_space_id
10. join sys.destination_data_spaces dds
11. on ps.data_space_id = dds.partition_scheme_id
12. join sys.data_spaces ds2 on dds.data_space_id = ds2.data_space_id
13. join sys.partitions p on dds.destination_id = p.partition_number
14. and p.object_id = i.object_id and p.index_id = i.index_id
15. join sys.partition_functions pf on ps.function_id = pf.function_id
16. LEFT JOIN sys.Partition_Range_values v on pf.function_id = v.function_id
17. and v.boundary_id = p.partition_number – pf.boundary_value_on_right
18. WHERE i.object_id = object_id(‘crm.EmailLog’)
19. and i.index_id in (0, 1)
20. 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

1. SELECT
2. i.name AS IndexName,
3. SUM(page_count * 8) AS IndexSizeKB
4. FROM sys.dm_db_index_physical_stats(
5. db_id(), object_id(‘dbo.table1’), NULL, NULL, ‘DETAILED’) AS s
6. JOIN sys.indexes AS i
7. ON s.[object_id] = i.[object_id] AND s.index_id = i.index_id
8. GROUP BY i.name
9. 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

1. select name ,size*8/1024 as Totalsize_MB ,CAST(FILEPROPERTY(name,‘SpaceUsed’) AS int)*8/1024 as Usedsize_MB,
2. size*8/1024 – CAST(FILEPROPERTY(name, ‘SpaceUsed’) AS int)*8/1024 AS Availabesize_MB
3. 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

1. declare @tableName varchar(50) = ‘LbaListAlertDetail’
2. declare @tableId int
5. select @tableId = object_id
6. from sys.objects
7. where name = @tableName
10. SELECT OBJECT_NAME(IX.OBJECT_ID) Table_Name
11. ,IX.name AS Index_Name
12. ,IX.type_desc Index_Type
13. ,SUM(PS.[used_page_count]) * 8 IndexSizeKB
14. ,IXUS.user_seeks AS NumOfSeeks
15. ,IXUS.user_scans AS NumOfScans
16. ,IXUS.user_lookups AS NumOfLookups
17. ,IXUS.user_updates AS NumOfUpdates
18. ,IXUS.last_user_seek AS LastSeek
19. ,IXUS.last_user_scan AS LastScan
20. ,IXUS.last_user_lookup AS LastLookup
21. ,IXUS.last_user_update AS LastUpdate
22. FROM sys.indexes IX
23. INNER JOIN sys.dm_db_index_usage_stats IXUS ON IXUS.index_id = IX.index_id AND IXUS.OBJECT_ID = IX.OBJECT_ID
24. INNER JOIN sys.dm_db_partition_stats PS on PS.object_id=IX.object_id
25. WHERE OBJECTPROPERTY(IX.OBJECT_ID,‘IsUserTable’) = 1
26. and IX.OBJECT_ID = @tableId
27. 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

1. use XX
2. if exists(select 1 from tempdb..sysobjects where id=object_id(‘tempdb..#tabName’) and xtype=‘u’)
3. drop table #tabName
4. go
5. create table #tabName(
6. table_name varchar(100),
7. rowsNum varchar(100),
8. reserved_size varchar(100),
9. data_size varchar(100),
10. index_size varchar(100),
11. unused_size varchar(100)
12. )
14. declare @name varchar(100)
15. declare cur cursor for
16. select name from sysobjects where xtype=‘u’ order by name
17. open cur
18. fetch next from cur into @name
19. while @@fetch_status=0
20. begin
21. insert into #tabName
22. exec sp_spaceused @name
23. fetch next from cur into @name
24. end
25. close cur
26. deallocate cur
29. 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
30. from #tabName ORDER BY size desc
35. 或
36. select top 10 a.tablename,a.SCHEMANAME,sum(a.TotalSpaceMB) TotalSpaceMB,sum(a.RowCounts) RowCounts
37. from (
38. SELECT
39. t.NAME AS TableName,
40. s.Name AS SchemaName,
41. p.rows AS RowCounts,
42. SUM(a.total_pages) * 8 AS TotalSpaceKB,
43. CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB,
44. SUM(a.used_pages) * 8 AS UsedSpaceKB,
45. CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB,
46. (SUM(a.total_pages) – SUM(a.used_pages)) * 8 AS UnusedSpaceKB,
47. CAST(ROUND(((SUM(a.total_pages) – SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB
48. FROM
49. sys.tables t
50. INNER JOIN
51. sys.indexes i ON t.OBJECT_ID = i.object_id
52. INNER JOIN
53. sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
54. INNER JOIN
55. sys.allocation_units a ON p.partition_id = a.container_id
56. LEFT OUTER JOIN
57. sys.schemas s ON t.schema_id = s.schema_id
58. WHERE
59. t.NAME NOT LIKE ‘dt%’
60. AND t.is_ms_shipped = 0
61. AND i.OBJECT_ID > 255
62. GROUP BY
63. t.Name, s.Name, p.Rows) a
64. GROUP BY a.tablename,a.SCHEMANAME
65. order by sum(a.TotalSpaceMB) desc
66. –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)

1. select ‘use ‘+name+ CHAR(10) +‘select DB_NAME(),OBJECT_NAME(OBJECT_ID),definition from ‘+name+‘.sys.sql_modules
2. WHERE objectproperty(OBJECT_ID, ”IsProcedure”) = 1
3. 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

1. SELECT DB_NAME(database_id) AS Exec_DB
2. ,percent_complete
3. ,CASE WHEN estimated_completion_time < 36000000
4. THEN ‘0’ ELSE ” END + RTRIM(estimated_completion_time/1000/3600)
5. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%3600/60), 2)
6. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining]
7. ,b.text as tsql
8. ,*
9. FROM SYS.DM_EXEC_REQUESTS
10. cross apply sys.dm_exec_sql_text(sql_handle) as b
11. WHERE command LIKE ‘DbccFilesCompact%’ –and database_id=db_id(‘cardorder’)
12. ORDER BY 2 DESC

80. 查看重新组织索引的100%进度

1. SELECT DB_NAME(database_id) AS Exec_DB
2. ,percent_complete
3. ,CASE WHEN estimated_completion_time < 36000000
4. THEN ‘0’ ELSE ” END + RTRIM(estimated_completion_time/1000/3600)
5. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%3600/60), 2)
6. + ‘:’ + RIGHT(‘0’ + RTRIM((estimated_completion_time/1000)%60), 2) AS [Time Remaining]
7. ,b.text as tsql
8. ,*
9. FROM SYS.DM_EXEC_REQUESTS
10. cross apply sys.dm_exec_sql_text(sql_handle) as b
11. WHERE command LIKE ‘%REORGANIZE%’ –and database_id=db_id(‘cardorder’)
12. ORDER BY 2 DESC

81. 查看存储过程的执行计划

1. SELECT
2. d.object_id ,
3. DB_NAME(d.database_id) DBName ,
4. OBJECT_NAME(object_id, database_id) ‘SPName’ ,
5. d.cached_time ,
6. d.last_execution_time ,
7. d.total_elapsed_time/1000000 AS total_elapsed_time,
8. d.total_elapsed_time / d.execution_count/1000000
9. AS [avg_elapsed_time] ,
10. d.last_elapsed_time/1000000 AS last_elapsed_time,
11. d.execution_count ,
12. d.total_physical_reads ,
13. d.last_physical_reads ,
14. d.total_logical_writes ,
15. d.last_logical_reads ,
16. et.text SQLText ,
17. eqp.query_plan executionplan
18. FROM sys.dm_exec_procedure_stats AS d
19. CROSS APPLY sys.dm_exec_sql_text(d.sql_handle) et
20. CROSS APPLY sys.dm_exec_query_plan(d.plan_handle) eqp
21. WHERE OBJECT_NAME(object_id, database_id) = ‘xxxx’
22. 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