查询历史是否存储在一些日志文件中?如果有,你能告诉我怎么找到他们的位置吗?如果没有,你能给我一些建议吗?


系统不会以这种方式记录查询。如果你知道你想提前这么做,你可以使用SQL Profiler来记录将要输入的内容,并在Profiler运行期间跟踪查询。


如果需要,可以通过SQL Profiler监视SQL查询


正如其他人所指出的,您可以使用SQL Profiler,但也可以通过sp_trace_*系统存储过程来利用它的功能。例如,这个SQL片段将(至少在2000年;我认为这对SQL 2008是一样的,但你必须仔细检查)捕获RPC:Completed和SQL:BatchCompleted事件的所有查询需要超过10秒运行,并将输出保存到一个跟踪文件,您可以在稍后的日期在SQL分析器中打开:

DECLARE @TraceID INT
DECLARE @ON BIT
DECLARE @RetVal INT
SET @ON = 1

exec @RetVal = sp_trace_create @TraceID OUTPUT, 2, N'Y:\TraceFile.trc'
print 'This trace is Trace ID = ' + CAST(@TraceID AS NVARCHAR)
print 'Return value = ' + CAST(@RetVal AS NVARCHAR)
-- 10 = RPC:Completed
exec sp_trace_setevent @TraceID, 10, 1, @ON     -- Textdata
exec sp_trace_setevent @TraceID, 10, 3, @ON     -- DatabaseID
exec sp_trace_setevent @TraceID, 10, 12, @ON        -- SPID
exec sp_trace_setevent @TraceID, 10, 13, @ON        -- Duration
exec sp_trace_setevent @TraceID, 10, 14, @ON        -- StartTime
exec sp_trace_setevent @TraceID, 10, 15, @ON        -- EndTime

-- 12 = SQL:BatchCompleted
exec sp_trace_setevent @TraceID, 12, 1, @ON     -- Textdata
exec sp_trace_setevent @TraceID, 12, 3, @ON     -- DatabaseID
exec sp_trace_setevent @TraceID, 12, 12, @ON        -- SPID
exec sp_trace_setevent @TraceID, 12, 13, @ON        -- Duration
exec sp_trace_setevent @TraceID, 12, 14, @ON        -- StartTime
exec sp_trace_setevent @TraceID, 12, 15, @ON        -- EndTime

-- Filter for duration [column 13] greater than [operation 2] 10 seconds (= 10,000ms)
declare @duration bigint
set @duration = 10000
exec sp_trace_setfilter @TraceID, 13, 0, 2, @duration

您可以从Books Online中找到每个跟踪事件、列等的ID;只需搜索sp_trace_create、sp_trace_setevent和sp_trace_setfiler sppros即可。然后,您可以像下面这样控制跟踪:

exec sp_trace_setstatus 15, 0       -- Stop the trace
exec sp_trace_setstatus 15, 1       -- Start the trace
exec sp_trace_setstatus 15, 2       -- Close the trace file and delete the trace settings

...其中'15'是跟踪ID(如上面的第一个脚本所删除的sp_trace_create所报告的)。

您可以查看哪些跟踪正在运行:

select * from ::fn_trace_getinfo(default)

我唯一要谨慎说的是——我不知道这会给你的系统带来多少负载;它将添加一些,但“一些”的大小可能取决于您的服务器有多忙。


你可以使用“每次保存自动生成脚本”,如果你使用管理工作室。 这当然不是日志。 检查一下是否对你有用。;)


晚一点,但希望有用,因为它增加了更多的细节…

在默认情况下,无法查看在SSMS中执行的查询。不过也有几种选择。

读取事务日志-这不是一件容易的事情,因为它是私有格式。但是,如果您需要查看历史上执行的查询(除了SELECT),这是唯一的方法。

您可以使用第三方工具,如ApexSQL日志和SQL日志救援(免费,但仅限SQL 2000)。查看这个线程的更多细节在这里SQL Server事务日志资源管理器/分析器

SQL Server分析器-最适合如果你只是想开始审计,你不感兴趣之前发生了什么。确保使用筛选器只选择您需要的事务。否则你很快就会得到大量的数据。

SQL Server跟踪—如果您想捕获所有或大部分命令,并将它们保存在跟踪文件中,以便稍后进行解析,则最适合。

触发器—如果您想捕获DML(除了select)并将它们存储在数据库中的某个地方,那么最适合使用它


[因为这个问题可能会作为一个重复的问题结束。]

如果SQL Server还没有重新启动(并且计划还没有被清除等等),您可能能够在计划缓存中找到该查询。

SELECT t.[text]
FROM sys.dm_exec_cached_plans AS p
CROSS APPLY sys.dm_exec_sql_text(p.plan_handle) AS t
WHERE t.[text] LIKE N'%something unique about your query%';

如果你因为Management Studio崩溃而丢失了文件,你可以在这里找到恢复文件:

C:\Users\<you>\Documents\SQL Server Management Studio\Backup Files\

否则,你将需要使用其他工具来帮助你保存查询历史,比如Ed Harper的回答中提到的SSMS Tools Pack——尽管它在SQL Server 2012+中不是免费的。或者您可以设置一些轻量级跟踪过滤您的登录名或主机名(但请使用服务器端跟踪,而不是Profiler)。


正如@Nenad-Zivkovic评论的那样,加入sys可能会有帮助。Dm_exec_query_stats和last_execution_time排序:

SELECT t.[text], s.last_execution_time
FROM sys.dm_exec_cached_plans AS p
INNER JOIN sys.dm_exec_query_stats AS s
   ON p.plan_handle = s.plan_handle
CROSS APPLY sys.dm_exec_sql_text(p.plan_handle) AS t
WHERE t.[text] LIKE N'%something unique about your query%'
ORDER BY s.last_execution_time DESC;

If the queries you are interested in are dynamic queries that fail intermittently, you could log the SQL and the datetime and user in a table at the time the dynamic statement is created. It would be done on a case-by case basis though as it requires specific programming to happen and it takes a littel extra processing time, so do it only for those few queries you are most concerned about. But having a log of the specific statements executed can really help when you are trying to find out why it fails once a month only. Dynamic queries are hard to thoroughly test and sometimes you get one specific input value that just won't work and doing this logging at the time the SQL is created is often the best way to see what specifically wasn in the sql that was built.


我使用下面的查询来跟踪未启用跟踪分析器的SQL服务器上的应用程序活动。 该方法使用查询存储(SQL Server 2016+)而不是DMV的。这提供了更好的查看历史数据的能力,以及更快的查找。 捕获sp_who/sp_whoisactive无法捕获的短时间运行的查询是非常有效的。

/* Adjust script to your needs.
    Run full script (F5) -> Interact with UI -> Run full script again (F5)
    Output will contain the queries completed in that timeframe.
*/

/* Requires Query Store to be enabled:
    ALTER DATABASE <db> SET QUERY_STORE = ON
    ALTER DATABASE <db> SET QUERY_STORE (OPERATION_MODE = READ_WRITE, MAX_STORAGE_SIZE_MB = 100000)
*/

USE <db> /* Select your DB */

IF OBJECT_ID('tempdb..#lastendtime') IS NULL
    SELECT GETUTCDATE() AS dt INTO #lastendtime
ELSE IF NOT EXISTS (SELECT * FROM #lastendtime)
    INSERT INTO #lastendtime VALUES (GETUTCDATE()) 

;WITH T AS (
SELECT 
    DB_NAME() AS DBName
    , s.name + '.' + o.name AS ObjectName
    , qt.query_sql_text
    , rs.runtime_stats_id
    , p.query_id
    , p.plan_id
    , CAST(p.last_execution_time AS DATETIME) AS last_execution_time
    , CASE WHEN p.last_execution_time > #lastendtime.dt THEN 'X' ELSE '' END AS New
    , CAST(rs.last_duration / 1.0e6 AS DECIMAL(9,3)) last_duration_s
    , rs.count_executions
    , rs.last_rowcount
    , rs.last_logical_io_reads
    , rs.last_physical_io_reads
    , q.query_parameterization_type_desc
FROM (
    SELECT *, ROW_NUMBER() OVER (PARTITION BY plan_id, runtime_stats_id ORDER BY runtime_stats_id DESC) AS recent_stats_in_current_priod
    FROM sys.query_store_runtime_stats 
    ) AS rs
INNER JOIN sys.query_store_runtime_stats_interval AS rsi ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id
INNER JOIN sys.query_store_plan AS p ON p.plan_id = rs.plan_id
INNER JOIN sys.query_store_query AS q ON q.query_id = p.query_id
INNER JOIN sys.query_store_query_text AS qt ON qt.query_text_id = q.query_text_id
LEFT OUTER JOIN sys.objects AS o ON o.object_id = q.object_id
LEFT OUTER JOIN sys.schemas AS s ON s.schema_id = o.schema_id
CROSS APPLY #lastendtime
WHERE rsi.start_time <= GETUTCDATE() AND GETUTCDATE() < rsi.end_time
    AND recent_stats_in_current_priod = 1
    /* Adjust your filters: */
    -- AND (s.name IN ('<myschema>') OR s.name IS NULL)
UNION
SELECT NULL,NULL,NULL,NULL,NULL,NULL,dt,NULL,NULL,NULL,NULL,NULL,NULL, NULL
FROM #lastendtime
)
SELECT * FROM T
WHERE T.query_sql_text IS NULL OR T.query_sql_text NOT LIKE '%#lastendtime%' -- do not show myself
ORDER BY last_execution_time DESC

TRUNCATE TABLE #lastendtime
INSERT INTO #lastendtime VALUES (GETUTCDATE()) 

一个稍微开箱即用的方法是在AutoHotKey中编写一个解决方案。我用了这个,它不是完美的,但是有效而且免费。从本质上讲,这个脚本为CTRL+SHIFT+R分配了一个热键,它将复制SSMS (CTRL+C)中所选的SQL,保存一个日期戳SQL文件,然后执行突出显示的查询(F5)。如果您不习惯AHK脚本,则前导分号是注释。

;CTRL+SHIFT+R to run a query that is first saved off
^+r::
;Copy
Send, ^c
; Set variables
EnvGet, HomeDir, USERPROFILE
FormatTime, DateString,,yyyyMMdd
FormatTime, TimeString,,hhmmss
; Make a spot to save the clipboard
FileCreateDir %HomeDir%\Documents\sqlhist\%DateString%
FileAppend, %Clipboard%, %HomeDir%\Documents\sqlhist\%DateString%\%TimeString%.sql
; execute the query
Send, {f5}
Return

最大的限制是,如果你点击“执行”而不是使用键盘快捷键,这个脚本将无法工作,并且这个脚本不会保存整个文件-只保存选中的文本。但是,您总是可以修改脚本以执行查询,然后在复制/保存之前选择所有(CTRL+A)。

使用具有“在文件中查找”功能的现代编辑器可以让您搜索SQL历史记录。您甚至可以把您的文件刮到SQLite3数据库中以查询您的查询。


SELECT deqs.last_execution_time AS [Time], dest.text AS [Query], dest.*
FROM sys.dm_exec_query_stats AS deqs
CROSS APPLY sys.dm_exec_sql_text(deqs.sql_handle) AS dest
WHERE dest.dbid = DB_ID('msdb')
ORDER BY deqs.last_execution_time DESC

这将显示查询运行的时间和日期


如果您需要通过SMSS执行的查询的历史记录。

你可能想试试SSMSPlus。

https://github.com/akarzazi/SSMSPlus

这个特性在SSMS中并不是现成的。

您需要SSMS 18或更新版本。

声明:我是作者。


查询历史可以通过系统视图查看:

sys.dm_exec_query_stats sys.dm_exec_sql_text sys.dm_exec_query_plan

例如,使用以下查询:

select  top(100)
        creation_time,
        last_execution_time,
        execution_count,
        total_worker_time/1000 as CPU,
        convert(money, (total_worker_time))/(execution_count*1000)as [AvgCPUTime],
        qs.total_elapsed_time/1000 as TotDuration,
        convert(money, (qs.total_elapsed_time))/(execution_count*1000)as [AvgDur],
        total_logical_reads as [Reads],
        total_logical_writes as [Writes],
        total_logical_reads+total_logical_writes as [AggIO],
        convert(money, (total_logical_reads+total_logical_writes)/(execution_count + 0.0)) as [AvgIO],
        [sql_handle],
        plan_handle,
        statement_start_offset,
        statement_end_offset,
        plan_generation_num,
        total_physical_reads,
        convert(money, total_physical_reads/(execution_count + 0.0)) as [AvgIOPhysicalReads],
        convert(money, total_logical_reads/(execution_count + 0.0)) as [AvgIOLogicalReads],
        convert(money, total_logical_writes/(execution_count + 0.0)) as [AvgIOLogicalWrites],
        query_hash,
        query_plan_hash,
        total_rows,
        convert(money, total_rows/(execution_count + 0.0)) as [AvgRows],
        total_dop,
        convert(money, total_dop/(execution_count + 0.0)) as [AvgDop],
        total_grant_kb,
        convert(money, total_grant_kb/(execution_count + 0.0)) as [AvgGrantKb],
        total_used_grant_kb,
        convert(money, total_used_grant_kb/(execution_count + 0.0)) as [AvgUsedGrantKb],
        total_ideal_grant_kb,
        convert(money, total_ideal_grant_kb/(execution_count + 0.0)) as [AvgIdealGrantKb],
        total_reserved_threads,
        convert(money, total_reserved_threads/(execution_count + 0.0)) as [AvgReservedThreads],
        total_used_threads,
        convert(money, total_used_threads/(execution_count + 0.0)) as [AvgUsedThreads],
        case 
            when sql_handle IS NULL then ' '
            else(substring(st.text,(qs.statement_start_offset+2)/2,(
                case
                    when qs.statement_end_offset =-1 then len(convert(nvarchar(MAX),st.text))*2      
                    else qs.statement_end_offset    
                end - qs.statement_start_offset)/2  ))
        end as query_text,
        db_name(st.dbid) as database_name,
        object_schema_name(st.objectid, st.dbid)+'.'+object_name(st.objectid, st.dbid) as [object_name],
        sp.[query_plan]
from sys.dm_exec_query_stats as qs with(readuncommitted)
cross apply sys.dm_exec_sql_text(qs.[sql_handle]) as st
cross apply sys.dm_exec_query_plan(qs.[plan_handle]) as sp
WHERE st.[text] LIKE '%query%'

使用下面的脚本可以看到当前运行的查询:

select ES.[session_id]
      ,ER.[blocking_session_id]
      ,ER.[request_id]
      ,ER.[start_time]
      ,DateDiff(second, ER.[start_time], GetDate()) as [date_diffSec]
      , COALESCE(
                    CAST(NULLIF(ER.[total_elapsed_time] / 1000, 0) as BIGINT)
                   ,CASE WHEN (ES.[status] <> 'running' and isnull(ER.[status], '')  <> 'running') 
                            THEN  DATEDIFF(ss,0,getdate() - nullif(ES.[last_request_end_time], '1900-01-01T00:00:00.000'))
                    END
                ) as [total_time, sec]
      , CAST(NULLIF((CAST(ER.[total_elapsed_time] as BIGINT) - CAST(ER.[wait_time] AS BIGINT)) / 1000, 0 ) as bigint) as [work_time, sec]
      , CASE WHEN (ER.[status] <> 'running' AND ISNULL(ER.[status],'') <> 'running') 
                THEN  DATEDIFF(ss,0,getdate() - nullif(ES.[last_request_end_time], '1900-01-01T00:00:00.000'))
        END as [sleep_time, sec] --Время сна в сек
      , NULLIF( CAST((ER.[logical_reads] + ER.[writes]) * 8 / 1024 as numeric(38,2)), 0) as [IO, MB]
      , CASE  ER.transaction_isolation_level
        WHEN 0 THEN 'Unspecified'
        WHEN 1 THEN 'ReadUncommited'
        WHEN 2 THEN 'ReadCommited'
        WHEN 3 THEN 'Repetable'
        WHEN 4 THEN 'Serializable'
        WHEN 5 THEN 'Snapshot'
        END as [transaction_isolation_level_desc]
      ,ER.[status]
      ,ES.[status] as [status_session]
      ,ER.[command]
      ,ER.[percent_complete]
      ,DB_Name(coalesce(ER.[database_id], ES.[database_id])) as [DBName]
      , SUBSTRING(
                    (select top(1) [text] from sys.dm_exec_sql_text(ER.[sql_handle]))
                  , ER.[statement_start_offset]/2+1
                  , (
                        CASE WHEN ((ER.[statement_start_offset]<0) OR (ER.[statement_end_offset]<0))
                                THEN DATALENGTH ((select top(1) [text] from sys.dm_exec_sql_text(ER.[sql_handle])))
                             ELSE ER.[statement_end_offset]
                        END
                        - ER.[statement_start_offset]
                    )/2 +1
                 ) as [CURRENT_REQUEST]
      ,(select top(1) [text] from sys.dm_exec_sql_text(ER.[sql_handle])) as [TSQL]
      ,(select top(1) [objectid] from sys.dm_exec_sql_text(ER.[sql_handle])) as [objectid]
      ,(select top(1) [query_plan] from sys.dm_exec_query_plan(ER.[plan_handle])) as [QueryPlan]
      ,NULL as [event_info]--(select top(1) [event_info] from sys.dm_exec_input_buffer(ES.[session_id], ER.[request_id])) as [event_info]
      ,ER.[wait_type]
      ,ES.[login_time]
      ,ES.[host_name]
      ,ES.[program_name]
      ,cast(ER.[wait_time]/1000 as decimal(18,3)) as [wait_timeSec]
      ,ER.[wait_time]
      ,ER.[last_wait_type]
      ,ER.[wait_resource]
      ,ER.[open_transaction_count]
      ,ER.[open_resultset_count]
      ,ER.[transaction_id]
      ,ER.[context_info]
      ,ER.[estimated_completion_time]
      ,ER.[cpu_time]
      ,ER.[total_elapsed_time]
      ,ER.[scheduler_id]
      ,ER.[task_address]
      ,ER.[reads]
      ,ER.[writes]
      ,ER.[logical_reads]
      ,ER.[text_size]
      ,ER.[language]
      ,ER.[date_format]
      ,ER.[date_first]
      ,ER.[quoted_identifier]
      ,ER.[arithabort]
      ,ER.[ansi_null_dflt_on]
      ,ER.[ansi_defaults]
      ,ER.[ansi_warnings]
      ,ER.[ansi_padding]
      ,ER.[ansi_nulls]
      ,ER.[concat_null_yields_null]
      ,ER.[transaction_isolation_level]
      ,ER.[lock_timeout]
      ,ER.[deadlock_priority]
      ,ER.[row_count]
      ,ER.[prev_error]
      ,ER.[nest_level]
      ,ER.[granted_query_memory]
      ,ER.[executing_managed_code]
      ,ER.[group_id]
      ,ER.[query_hash]
      ,ER.[query_plan_hash]
      ,EC.[most_recent_session_id]
      ,EC.[connect_time]
      ,EC.[net_transport]
      ,EC.[protocol_type]
      ,EC.[protocol_version]
      ,EC.[endpoint_id]
      ,EC.[encrypt_option]
      ,EC.[auth_scheme]
      ,EC.[node_affinity]
      ,EC.[num_reads]
      ,EC.[num_writes]
      ,EC.[last_read]
      ,EC.[last_write]
      ,EC.[net_packet_size]
      ,EC.[client_net_address]
      ,EC.[client_tcp_port]
      ,EC.[local_net_address]
      ,EC.[local_tcp_port]
      ,EC.[parent_connection_id]
      ,EC.[most_recent_sql_handle]
      ,ES.[host_process_id]
      ,ES.[client_version]
      ,ES.[client_interface_name]
      ,ES.[security_id]
      ,ES.[login_name]
      ,ES.[nt_domain]
      ,ES.[nt_user_name]
      ,ES.[memory_usage]
      ,ES.[total_scheduled_time]
      ,ES.[last_request_start_time]
      ,ES.[last_request_end_time]
      ,ES.[is_user_process]
      ,ES.[original_security_id]
      ,ES.[original_login_name]
      ,ES.[last_successful_logon]
      ,ES.[last_unsuccessful_logon]
      ,ES.[unsuccessful_logons]
      ,ES.[authenticating_database_id]
      ,ER.[sql_handle]
      ,ER.[statement_start_offset]
      ,ER.[statement_end_offset]
      ,ER.[plan_handle]
      ,NULL as [dop]--ER.[dop]
      ,coalesce(ER.[database_id], ES.[database_id]) as [database_id]
      ,ER.[user_id]
      ,ER.[connection_id]
from sys.dm_exec_requests ER with(readuncommitted)
right join sys.dm_exec_sessions ES with(readuncommitted)
on ES.session_id = ER.session_id 
left join sys.dm_exec_connections EC  with(readuncommitted)
on EC.session_id = ES.session_id
where ER.[status] in ('suspended', 'running', 'runnable')
or exists (select top(1) 1 from sys.dm_exec_requests as ER0 where ER0.[blocking_session_id]=ES.[session_id])

该请求显示所有活动请求和显式阻止活动请求的所有请求。

所有这些和其他有用的脚本都作为SRV数据库中的表示形式实现,该数据库是免费分发的。 例如,第一个脚本来自视图[inf]。[vBigQuery],第二个来自视图[inf].[vRequests]。

对于查询历史,也有各种第三方解决方案。 我使用Dbeaver的查询管理器: 和SSMS内嵌的SQL Tools中的查询执行历史:


我相信在座各位的回答。

这个脚本展示了如何找到影响SQL的最慢的20个查询

select top 20 dest.text, deqs.execution_count, deqs.total_elapsed_time, deqs.total_worker_time,
(deqs.total_elapsed_time / deqs.execution_count) as 'avg_elapse_time',
(deqs.total_worker_time / deqs.execution_count) as 'avg_worker_time'
from sys.dm_exec_query_stats as deqs
CROSS APPLY sys.dm_exec_sql_text(deqs.sql_handle) as dest
where deqs. last_execution_time >= '2021-09-27 16:00' /* YOUR DATE AND TIME HERE*/
order by 'avg_elapse_time' desc

下面的SQL查询可以显示简单的查询日志:

SELECT last_execution_time, text
FROM sys.dm_exec_query_stats stats
CROSS APPLY sys.dm_exec_sql_text(stats.sql_handle) 
ORDER BY last_execution_time

下图是它的样子:

并且,下面的SQL查询可以显示简单的事务查询日志:

SELECT Operation, [Begin Time], [End Time] 
FROM fn_dblog(NULL,NULL)

下图是它的样子:

此外,我还不知道SQL查询将简单查询日志和简单事务查询日志显示在一起。