这篇文章主要讲解了“sqlserver dba常用的sql语句有哪些”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“sqlserver dba常用的sql语句有哪些”吧!sqlserver查看实例级别的信息,使用SERVERPROPERTY函数select SERVERPROPERTY (‘propertyname’)查看实例级别的某个参数XX的配置select * from sys.configurations where name=’XX’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 OVERRIDEsqlserver没有系统表可以查询所有数据库下面对象如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)
其中sp_who2除了显示sp_who的输出信息外,,还显示下面的信息:
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)查看某个存储过程的内容sp_helptext pro_nameDBCC INPUTBUFFER显示某个线程号发送到sqlserver数据库的最后一个语句DBCC INPUTBUFFER (249)假设查询到249被锁给堵塞了,执行上面的可以查到被堵塞的SQL语句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,显示结果为最早的一个事务的IDDBCC OPENTRAN (dbname)监视日志空间DBCC SQLPERF (LOGSPACE)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
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);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,让数据库自己控制查看数据库各种设置select name,State,user_access,is_read_only,recovery_model from sys.databases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’)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.blocked0 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’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查看备份进度SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time
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_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查看恢复进度SELECT DB_NAME(database_id) AS Exec_DB,percent_complete,CASE WHEN estimated_completion_time
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_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 表示日志备份查询备份信息
SELECT
bs.backup_set_id,
bs.database_name,
bs.backup_start_date,
bs.media_set_id,
bmf.physical_device_name,
bmf.media_family_id,
bs.*
FROM
msdb.dbo.backupmediafamily bmf
INNER JOIN
msdb.dbo.backupset bs ON bs.media_set_id = bmf.media_set_id
INNER JOIN
(
SELECT
database_name,
MAX(backup_start_date) as backup_start_date
FROM
msdb.dbo.backupset bs
WHERE
type = ‘d’
GROUP BY
database_name
) de on bs.database_name = de.database_name
and bs.backup_start_date = de.backup_start_date
and bs.type = ‘d’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
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查询SSRS Report Subscriptions相关的jobSELECTb.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’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’);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%’查询实例的数据文件总大小SELECT sum(size*8/1024/1024) FROM master.sys.master_files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%’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查看当前最耗资源的10个SQL及其spidSELECT 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作业名字即可命令执行某个jobEXECUTE msdb.dbo.sp_start_job N’job_name’
自增长列相关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获取标识列的种子值SELECT IDENT_SEED (‘表名’)获取标识列的递增量SELECT IDENT_INCR(‘表名’)获取指定表中最后生成的标识值SELECT IDENT_CURRENT(‘表名’)重新设置标识种子值为XXDBCC CHECKIDENT (表名, RESEED, XX)升级前,查询服务器名、实例名、版本号
select SERVERPROPERTY(‘machinename’),@@SERVERNAME,SERVERPROPERTY (‘edition’),@@version用户被grant这样操作赋予的权限
use dbname
exec sp_helprotect @username = ‘username’授予某个用户执行某个数据库的sp的权限use dbname
grant execute to “username”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;always on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_mapalways on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;always on查看AG名称select * from sys.dm_hadr_name_id_mapalways on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;always on查看侦听ipselect * from sys.availability_group_listeners;always on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_descfrom sys.dm_hadr_database_replica_states djoin sys.availability_databases_cluster dcon d.group_database_id=dc.group_database_id;always on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_sizefrom sys.dm_hadr_database_replica_states drsjoin 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_ratefrom sys.dm_hadr_database_replica_states drsjoin 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 / 秒查询实例的FILESTREAM 使用的DIRECTORY_NAME
SELECT SERVERPROPERTY(‘FilestreamShareName’)
查询FILETABLE表的数据库对应的DIRECTORY_NA免费主机域名MEselect 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
查询FILETABLE表对应的DIRECTORY_NAME
select object_name(object_id),* from sys.filetables
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;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、更新此表查询某个发布XX,发布的数据库对象的2种方法1、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
2、订阅数据库上执行
select distinct article from MSreplication_objects where publication=’XX’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
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’)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’;
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
查询分区函数
select * from sys.partition_functions
查看分区架构
select * from sys.partition_schemes查询ssis包的信息
select * from msdb.dbo.sysssispackages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重建表上的所有索引
alter index all on table_name rebuild with (
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’)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_updatesqlserver中类似oracle的dba_source的视图是sys.sql_modules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_page免费主机域名s) – 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
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;
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)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
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_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE ‘DbccFilesCompact%’ –and database_id=db_id(‘cardorder’)ORDER BY 2 DESC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
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_REQUESTScross apply sys.dm_exec_sql_text(sql_handle) as bWHERE command LIKE ‘%REORGANIZE%’ –and database_id=db_id(‘cardorder’)ORDER BY 2 DESC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;
查看当前用户
select system_user
查询ddl修改操作的记录
1、执行如下找到trace文件的目录和名称
select * from Sys.traces
2、使用sqlserver profiler工具打开trace文件,就可以查到相关记录
感谢各位的阅读,以上就是“sqlserver dba常用的sql语句有哪些”的内容了,经过本文的学习后,相信大家对sqlserver dba常用的sql语句有哪些这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是云技术,小编将为大家推送更多相关知识点的文章,欢迎关注!
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