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[其它] 系统常用mssql查询

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    [LV.7]常住居民III

    发表于 2020-4-22 09:52:19 | 显示全部楼层 |阅读模式

    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

    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;

    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

    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)

    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

    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

    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



    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
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