TA的每日心情 | 奋斗 2022-8-5 08:00 |
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- 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.backupset
- dbo.log_shipping_secondary
- dbo.restorehistory
- dbo.sysjobs
- dbo.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. sp_lock 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
- 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_ms
- FROM sys.dm_tran_locks as t1
- INNER JOIN sys.dm_os_waiting_tasks as t2
- ON 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 b
- where 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,
- ( 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),
- qt.text,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 sp.blocked>0 AND session_Id NOT IN (@@SPID)
- 或
- SELECT session_id ,status ,blocking_session_id
- ,wait_type ,wait_time ,wait_resource
- ,transaction_id
- FROM sys.dm_exec_requests
- WHERE 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) tableName
- 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
- 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 1
- FROM sys.sysprocesses
- WHERE program_name = 'SQLAgent - Generic Refresher'
- )
- SELECT 'Running'
- ELSE
- 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
- 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,cpu
- from sys.sysprocesses as a with(nolock)
- cross apply sys.dm_exec_sql_text(sql_handle) as b
- where 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 < 36000000
- THEN '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_REQUESTS
- cross apply sys.dm_exec_sql_text(sql_handle) as b
- WHERE 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 < 36000000
- THEN '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_REQUESTS
- cross apply sys.dm_exec_sql_text(sql_handle) as b
- WHERE command LIKE 'RESTORE%' --and database_id=db_id('cardorder')
- --OR command LIKE 'RESTORE%'
- ORDER BY 2 DESC
- SQLSERVER查看备份、还原进度
- SELECT
- DB_NAME(er.[database_id]) [DatabaseName]
- ,er.[command] AS [CommandType]
- ,er.start_time
- ,er.[percent_complete]
- ,CONVERT(DECIMAL(38, 2), er.[total_elapsed_time] / 60000.00) AS [ElapsedTime_second]
- ,CONVERT(DECIMAL(38, 2), er.[estimated_completion_time] / 60000.00) AS [EstimatedCompletionTime_second]
- FROM sys.dm_exec_requests AS er
- WHERE er.[command] in ( 'RESTORE DATABASE' ,'BACKUP DATABASE')
- order by er.start_time 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
- SELECT
- CONVERT(CHAR(100),SERVERPROPERTY('Servername'))AS Server,
- bs.database_name,
- bs.backup_start_date,
- bs.backup_finish_date,
- bs.expiration_date,
- CASE bs.type
- WHEN '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 bmf
- INNER JOIN msdb.dbo.backupset bs
- ON bmf.media_set_id=bs.media_set_id
- WHERE 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
- SELECT
- db_name(database_id),
- mirroring_state_desc,
- mirroring_role_desc,
- mirroring_partner_name,
- mirroring_partner_instance
- FROM sys.database_mirroring
- 33. 查询SSRS Report Subscriptions相关的job
- SELECT
- b.name AS JobName
- , e.name
- , e.path
- , d.description
- , a.SubscriptionID
- , laststatus
- , eventtype
- , LastRunTime
- , date_created
- , date_modified
- FROM
- ReportServer.dbo.ReportSchedule a
- JOIN msdb.dbo.sysjobs b ON CONVERT(SYSNAME,a.ScheduleID) = b.name
- JOIN ReportServer.dbo.ReportSchedule c ON b.name = CONVERT(SYSNAME,c.ScheduleID)
- JOIN ReportServer.dbo.Subscriptions d ON c.SubscriptionID = d.SubscriptionID
- JOIN ReportServer.dbo.Catalog e ON d.report_oid = e.itemid
- WHERE
- 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
- SELECT
- DB_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 TextIndexSizeMB
- FROM sys.databases db
- 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
- 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
- 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
- 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
- SELECT TOP 3
- total_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 = -1
- THEN 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) ObjectName
- FROM sys.dm_exec_query_stats qs WITH(nolock)
- CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
- WHERE 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 3
- total_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 = -1
- THEN 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) ObjectName
- FROM sys.dm_exec_query_stats qs WITH(nolock)
- CROSS apply sys.dm_exec_sql_text(qs.sql_handle) AS qt
- WHERE 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 10
- session_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_request
- CROSS APPLY
- sys.dm_exec_sql_text(d_request.sql_handle) AS d_sql
- WHERE session_id>50
- ORDER 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_id
- WHERE 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 desc
- select * 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_ID
- INNER 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_modules
- WHERE 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 < 36000000
- THEN '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_REQUESTS
- cross apply sys.dm_exec_sql_text(sql_handle) as b
- WHERE 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 < 36000000
- THEN '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_REQUESTS
- cross apply sys.dm_exec_sql_text(sql_handle) as b
- WHERE 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
- 查看下实例名,网络名
- SELECT @@SERVERNAME as InstalledName, SERVERPROPERTY('SERVERNAME') as NetworkName
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