Example of implementation of a general performance indicator of MS SQL Server
Foreword
Often there is a need to create such a performance indicator, which would show the status of the DBMS relative to the previous period or a particular day. The article Implementing the performance indicator of queries, stored procedures and triggers in MS SQL Server. An autotracing example was proposed for the implementation of such an indicator. Here we also describe another simpler method, which, besides, allows us to look historically not just for how long the request was executed, but also how it was executed, and also to get the execution plans for each time point.
This method is especially useful when presenting daily reports to a worthwhile guide, which can not only be automated, but also output to a report with minimal technical details.
In this article, we will consider an example of the implementation of such a general indicator, where the entire query execution time (Total Elapsed Time) will be taken as a measure.
Decision
First we give a general algorithm:
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1) Take a snapshot of active requests
2) Save the result
3) At the end of the day, we do a general analysis and save the result in a table
4) We make a comparative analysis of the data obtained
Now we give the detail:
To take a snapshot of active queries, create the following tables:
1) Table of query plans:
Query plan table
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [srv].[PlanQuery]( [PlanHandle] [varbinary](64) NOT NULL, [SQLHandle] [varbinary](64) NOT NULL, [QueryPlan] [xml] NULL, [InsertUTCDate] [datetime] NOT NULL, CONSTRAINT [PK_PlanQuery] PRIMARY KEY CLUSTERED ( [SQLHandle] ASC, [PlanHandle] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] GO ALTER TABLE [srv].[PlanQuery] ADD CONSTRAINT [DF_PlanQuery_InsertUTCDate] DEFAULT (getutcdate()) FOR [InsertUTCDate] GO 2) Request table:
Query table
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [srv].[SQLQuery]( [SQLHandle] [varbinary](64) NOT NULL, [TSQL] [nvarchar](max) NULL, [InsertUTCDate] [datetime] NOT NULL, CONSTRAINT [PK_SQLQuery] PRIMARY KEY CLUSTERED ( [SQLHandle] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] GO ALTER TABLE [srv].[SQLQuery] ADD CONSTRAINT [DF_SQLQuery_InsertUTCDate] DEFAULT (getutcdate()) FOR [InsertUTCDate] GO 3) Table of storing snapshots for active requests:
Snapshot storage table for active queries
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [srv].[RequestStatistics]( [session_id] [smallint] NOT NULL, [request_id] [int] NULL, [start_time] [datetime] NULL, [status] [nvarchar](30) NULL, [command] [nvarchar](32) NULL, [sql_handle] [varbinary](64) NULL, [statement_start_offset] [int] NULL, [statement_end_offset] [int] NULL, [plan_handle] [varbinary](64) NULL, [database_id] [smallint] NULL, [user_id] [int] NULL, [connection_id] [uniqueidentifier] NULL, [blocking_session_id] [smallint] NULL, [wait_type] [nvarchar](60) NULL, [wait_time] [int] NULL, [last_wait_type] [nvarchar](60) NULL, [wait_resource] [nvarchar](256) NULL, [open_transaction_count] [int] NULL, [open_resultset_count] [int] NULL, [transaction_id] [bigint] NULL, [context_info] [varbinary](128) NULL, [percent_complete] [real] NULL, [estimated_completion_time] [bigint] NULL, [cpu_time] [int] NULL, [total_elapsed_time] [int] NULL, [scheduler_id] [int] NULL, [task_address] [varbinary](8) NULL, [reads] [bigint] NULL, [writes] [bigint] NULL, [logical_reads] [bigint] NULL, [text_size] [int] NULL, [language] [nvarchar](128) NULL, [date_format] [nvarchar](3) NULL, [date_first] [smallint] NULL, [quoted_identifier] [bit] NULL, [arithabort] [bit] NULL, [ansi_null_dflt_on] [bit] NULL, [ansi_defaults] [bit] NULL, [ansi_warnings] [bit] NULL, [ansi_padding] [bit] NULL, [ansi_nulls] [bit] NULL, [concat_null_yields_null] [bit] NULL, [transaction_isolation_level] [smallint] NULL, [lock_timeout] [int] NULL, [deadlock_priority] [int] NULL, [row_count] [bigint] NULL, [prev_error] [int] NULL, [nest_level] [int] NULL, [granted_query_memory] [int] NULL, [executing_managed_code] [bit] NULL, [group_id] [int] NULL, [query_hash] [binary](8) NULL, [query_plan_hash] [binary](8) NULL, [most_recent_session_id] [int] NULL, [connect_time] [datetime] NULL, [net_transport] [nvarchar](40) NULL, [protocol_type] [nvarchar](40) NULL, [protocol_version] [int] NULL, [endpoint_id] [int] NULL, [encrypt_option] [nvarchar](40) NULL, [auth_scheme] [nvarchar](40) NULL, [node_affinity] [smallint] NULL, [num_reads] [int] NULL, [num_writes] [int] NULL, [last_read] [datetime] NULL, [last_write] [datetime] NULL, [net_packet_size] [int] NULL, [client_net_address] [varchar](48) NULL, [client_tcp_port] [int] NULL, [local_net_address] [varchar](48) NULL, [local_tcp_port] [int] NULL, [parent_connection_id] [uniqueidentifier] NULL, [most_recent_sql_handle] [varbinary](64) NULL, [login_time] [datetime] NULL, [host_name] [nvarchar](128) NULL, [program_name] [nvarchar](128) NULL, [host_process_id] [int] NULL, [client_version] [int] NULL, [client_interface_name] [nvarchar](32) NULL, [security_id] [varbinary](85) NULL, [login_name] [nvarchar](128) NULL, [nt_domain] [nvarchar](128) NULL, [nt_user_name] [nvarchar](128) NULL, [memory_usage] [int] NULL, [total_scheduled_time] [int] NULL, [last_request_start_time] [datetime] NULL, [last_request_end_time] [datetime] NULL, [is_user_process] [bit] NULL, [original_security_id] [varbinary](85) NULL, [original_login_name] [nvarchar](128) NULL, [last_successful_logon] [datetime] NULL, [last_unsuccessful_logon] [datetime] NULL, [unsuccessful_logons] [bigint] NULL, [authenticating_database_id] [int] NULL, [InsertUTCDate] [datetime] NOT NULL, [EndRegUTCDate] [datetime] NULL ) ON [PRIMARY] GO ALTER TABLE [srv].[RequestStatistics] ADD CONSTRAINT [DF_RequestStatistics_InsertUTCDate] DEFAULT (getutcdate()) FOR [InsertUTCDate] GO SET ANSI_PADDING ON GO CREATE CLUSTERED INDEX [indRequest] ON [srv].[RequestStatistics] ( [session_id] ASC, [request_id] ASC, [database_id] ASC, [user_id] ASC, [start_time] ASC, [command] ASC, [sql_handle] ASC, [plan_handle] ASC, [transaction_id] ASC, [connection_id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO SET ANSI_PADDING ON GO CREATE NONCLUSTERED INDEX [indPlanQuery] ON [srv].[RequestStatistics] ( [plan_handle] ASC, [sql_handle] ASC ) WHERE ([sql_handle] IS NOT NULL AND [plan_handle] IS NOT NULL) WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO And a table for the archive [srv]. [RequestStatisticsArchive] is created in the same way.
4) Table for storing daily totals:
Table for storing daily totals
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [srv].[TSQL_DAY_Statistics]( [command] [nvarchar](32) NOT NULL, [DBName] [nvarchar](128) NOT NULL, [PlanHandle] [varbinary](64) NOT NULL, [SqlHandle] [varbinary](64) NOT NULL, [execution_count] [bigint] NOT NULL, [min_wait_timeSec] [decimal](23, 8) NOT NULL, [min_estimated_completion_timeSec] [decimal](23, 8) NOT NULL, [min_cpu_timeSec] [decimal](23, 8) NOT NULL, [min_total_elapsed_timeSec] [decimal](23, 8) NOT NULL, [min_lock_timeoutSec] [decimal](23, 8) NOT NULL, [max_wait_timeSec] [decimal](23, 8) NOT NULL, [max_estimated_completion_timeSec] [decimal](23, 8) NOT NULL, [max_cpu_timeSec] [decimal](23, 8) NOT NULL, [max_total_elapsed_timeSec] [decimal](23, 8) NOT NULL, [max_lock_timeoutSec] [decimal](23, 8) NOT NULL, [DATE] [date] NOT NULL ) ON [PRIMARY] GO ALTER TABLE [srv].[TSQL_DAY_Statistics] ADD CONSTRAINT [DF_TSQL_DAY_Statistics_DATE] DEFAULT (getutcdate()) FOR [DATE] GO CREATE NONCLUSTERED INDEX [indDATE] ON [srv].[TSQL_DAY_Statistics] ( [DATE] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO 5) View on recorded snapshots of active requests:
View from recorded snapshots of active requests
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE view [srv].[vRequestStatistics] as /* */ SELECT rs.[status] collate Cyrillic_General_CI_AS as [status] ,rs.[InsertUTCDate] ,rs.[start_time] ,rs.[command] collate Cyrillic_General_CI_AS as [command] ,rs.[session_id] ,rs.[blocking_session_id] ,round(cast(rs.[total_elapsed_time] as decimal(18,3))/1000, 3) as [total_elapsed_timeSec] ,DB_NAME(rs.[database_id]) collate Cyrillic_General_CI_AS as [DBName] ,rs.[is_user_process] ,rs.[login_name] collate Cyrillic_General_CI_AS as [login_name] ,rs.[program_name] collate Cyrillic_General_CI_AS as [program_name] ,rs.[host_name] collate Cyrillic_General_CI_AS as [host_name] ,sq.[TSQL] collate Cyrillic_General_CI_AS as [TSQL]--,(select top(1) text from sys.dm_exec_sql_text([sql_handle])) as [TSQL] ,pq.[QueryPlan] ,rs.[plan_handle] ,rs.[user_id] ,rs.[connection_id] ,rs.[database_id] ,rs.[sql_handle] ,rs.[statement_start_offset]-- , . sql_handle, statement_end_offset sys.dm_exec_sql_text . NULL. ,rs.[statement_end_offset]-- , . sql_handle, statement_end_offset sys.dm_exec_sql_text . NULL. ,rs.[wait_type] collate Cyrillic_General_CI_AS as [wait_type]-- ,rs.[wait_time]-- , ( ). NULL. ,round(cast(rs.[wait_time] as decimal(18,3))/1000, 3) as [wait_timeSec] ,rs.[last_wait_type] collate Cyrillic_General_CI_AS as [last_wait_type]-- , . NULL. ,rs.[wait_resource] collate Cyrillic_General_CI_AS as [wait_resource]-- , , . NULL. ,rs.[open_transaction_count]-- , . NULL. ,rs.[open_resultset_count]-- , . NULL. ,rs.[transaction_id]-- , . NULL. ,rs.[context_info] ,rs.[percent_complete] ,rs.[estimated_completion_time] ,round(cast(rs.[estimated_completion_time] as decimal(18,3))/1000, 3) as [estimated_completion_timeSec] ,rs.[cpu_time]-- ( ), . NULL. ,round(cast(rs.[cpu_time] as decimal(18,3))/1000, 3) as [cpu_timeSec] ,rs.[total_elapsed_time]-- , ( ). NULL. ,rs.[scheduler_id]-- , . NULL. ,rs.[task_address]-- , , . NULL. ,rs.[reads]-- , . NULL. ,rs.[writes]-- , . NULL. ,rs.[logical_reads]-- , . NULL. ,rs.[text_size]-- TEXTSIZE . NULL. ,rs.[language] collate Cyrillic_General_CI_AS as [language]-- . NULL. ,rs.[date_format] collate Cyrillic_General_CI_AS as [date_format]-- DATEFORMAT . NULL. ,rs.[date_first]-- DATEFIRST . NULL. ,rs.[quoted_identifier] ,rs.[arithabort] ,rs.[ansi_null_dflt_on] ,rs.[ansi_defaults] ,rs.[ansi_warnings] ,rs.[ansi_padding] ,rs.[ansi_nulls] ,rs.[concat_null_yields_null] ,rs.[transaction_isolation_level]-- , . NULL (0- , 1 5 ) ,rs.[lock_timeout]-- ( ). NULL. ,round(cast(rs.[lock_timeout] as decimal(18,3))/1000, 3) as [lock_timeoutSec] ,rs.[deadlock_priority]-- DEADLOCK_PRIORITY . NULL. ,rs.[row_count]-- , . NULL. ,rs.[prev_error]-- , . NULL. ,rs.[nest_level]-- , . NULL. ,rs.[granted_query_memory]-- , . NULL. ,rs.[executing_managed_code]--, CLR (, , ). , CLR , Transact-SQL. NULL. ,rs.[group_id]-- , . NULL. ,rs.[query_hash]-- - . , . ,rs.[query_plan_hash]-- - . . ,rs.[last_request_start_time] ,rs.[last_request_end_time] ,rs.[total_scheduled_time] ,rs.[memory_usage] ,rs.[nt_user_name] collate Cyrillic_General_CI_AS as [nt_user_name] ,rs.[nt_domain] collate Cyrillic_General_CI_AS as [nt_domain] ,rs.[security_id] ,rs.[client_interface_name] collate Cyrillic_General_CI_AS as [client_interface_name] ,rs.[client_version] ,rs.[host_process_id] ,rs.[login_time] ,rs.[most_recent_sql_handle] ,rs.[parent_connection_id] ,rs.[local_tcp_port] ,rs.[local_net_address] collate Cyrillic_General_CI_AS as [local_net_address] ,rs.[client_tcp_port] ,rs.[client_net_address] collate Cyrillic_General_CI_AS as [client_net_address] ,rs.[EndRegUTCDate] FROM [srv].[RequestStatistics] as rs with(readuncommitted) inner join [srv].[PlanQuery] as pq on rs.[plan_handle]=pq.[PlanHandle] and rs.[sql_handle]=pq.[SqlHandle] inner join [srv].[SQLQuery] as sq on sq.[SqlHandle]=pq.[SqlHandle] union all SELECT rs.[status] collate Cyrillic_General_CI_AS ,rs.[InsertUTCDate] ,rs.[start_time] ,rs.[command] collate Cyrillic_General_CI_AS ,rs.[session_id] ,rs.[blocking_session_id] ,round(cast(rs.[total_elapsed_time] as decimal(18,3))/1000, 3) as [total_elapsed_timeSec] ,DB_NAME(rs.[database_id]) collate Cyrillic_General_CI_AS as [DBName] ,rs.[is_user_process] ,rs.[login_name] collate Cyrillic_General_CI_AS ,rs.[program_name] collate Cyrillic_General_CI_AS ,rs.[host_name] collate Cyrillic_General_CI_AS ,sq.[TSQL] collate Cyrillic_General_CI_AS--,(select top(1) text from sys.dm_exec_sql_text([sql_handle])) as [TSQL] ,pq.[QueryPlan] ,rs.[plan_handle] ,rs.[user_id] ,rs.[connection_id] ,rs.[database_id] ,rs.[sql_handle] ,rs.[statement_start_offset]-- , . sql_handle, statement_end_offset sys.dm_exec_sql_text . NULL. ,rs.[statement_end_offset]-- , . sql_handle, statement_end_offset sys.dm_exec_sql_text . NULL. ,rs.[wait_type] collate Cyrillic_General_CI_AS-- ,rs.[wait_time]-- , ( ). NULL. ,round(cast(rs.[wait_time] as decimal(18,3))/1000, 3) as [wait_timeSec] ,rs.[last_wait_type] collate Cyrillic_General_CI_AS-- , . NULL. ,rs.[wait_resource] collate Cyrillic_General_CI_AS-- , , . NULL. ,rs.[open_transaction_count]-- , . NULL. ,rs.[open_resultset_count]-- , . NULL. ,rs.[transaction_id]-- , . NULL. ,rs.[context_info] ,rs.[percent_complete] ,rs.[estimated_completion_time] ,round(cast(rs.[estimated_completion_time] as decimal(18,3))/1000, 3) as [estimated_completion_timeSec] ,rs.[cpu_time]-- ( ), . NULL. ,round(cast(rs.[cpu_time] as decimal(18,3))/1000, 3) as [cpu_timeSec] ,rs.[total_elapsed_time]-- , ( ). NULL. ,rs.[scheduler_id]-- , . NULL. ,rs.[task_address]-- , , . NULL. ,rs.[reads]-- , . NULL. ,rs.[writes]-- , . NULL. ,rs.[logical_reads]-- , . NULL. ,rs.[text_size]-- TEXTSIZE . NULL. ,rs.[language] collate Cyrillic_General_CI_AS-- . NULL. ,rs.[date_format] collate Cyrillic_General_CI_AS-- DATEFORMAT . NULL. ,rs.[date_first]-- DATEFIRST . NULL. ,rs.[quoted_identifier] ,rs.[arithabort] ,rs.[ansi_null_dflt_on] ,rs.[ansi_defaults] ,rs.[ansi_warnings] ,rs.[ansi_padding] ,rs.[ansi_nulls] ,rs.[concat_null_yields_null] ,rs.[transaction_isolation_level]-- , . NULL (0- , 1 5 ) ,rs.[lock_timeout]-- ( ). NULL. ,round(cast(rs.[lock_timeout] as decimal(18,3))/1000, 3) as [lock_timeoutSec] ,rs.[deadlock_priority]-- DEADLOCK_PRIORITY . NULL. ,rs.[row_count]-- , . NULL. ,rs.[prev_error]-- , . NULL. ,rs.[nest_level]-- , . NULL. ,rs.[granted_query_memory]-- , . NULL. ,rs.[executing_managed_code]--, CLR (, , ). , CLR , Transact-SQL. NULL. ,rs.[group_id]-- , . NULL. ,rs.[query_hash]-- - . , . ,rs.[query_plan_hash]-- - . . ,rs.[last_request_start_time] ,rs.[last_request_end_time] ,rs.[total_scheduled_time] ,rs.[memory_usage] ,rs.[nt_user_name] collate Cyrillic_General_CI_AS ,rs.[nt_domain] collate Cyrillic_General_CI_AS ,rs.[security_id] ,rs.[client_interface_name] collate Cyrillic_General_CI_AS ,rs.[client_version] ,rs.[host_process_id] ,rs.[login_time] ,rs.[most_recent_sql_handle] ,rs.[parent_connection_id] ,rs.[local_tcp_port] ,rs.[local_net_address] collate Cyrillic_General_CI_AS ,rs.[client_tcp_port] ,rs.[client_net_address] collate Cyrillic_General_CI_AS ,rs.[EndRegUTCDate] FROM [srv].[RequestStatisticsArchive] as rs with(readuncommitted) inner join [srv].[PlanQuery] as pq on rs.[plan_handle]=pq.[PlanHandle] and rs.[sql_handle]=pq.[SqlHandle] inner join [srv].[SQLQuery] as sq on sq.[SqlHandle]=pq.[SqlHandle] GO 6) View on a sample of active requests at the current time:
View on the selection of active requests at the current time
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE view [inf].[vRequestDetail] as /*, , , */ with tbl0 as ( select ES.[session_id] ,ER.[blocking_session_id] ,ER.[request_id] ,ER.[start_time] ,ER.[status] ,ER.[command] ,ER.[percent_complete] ,DB_Name(coalesce(ER.[database_id], ES.[database_id])) as [DBName] ,(select top(1) text from sys.dm_exec_sql_text(ER.[sql_handle])) as [TSQL] ,(select top(1) [query_plan] from sys.dm_exec_query_plan(ER.[plan_handle])) as [QueryPlan] ,ER.[wait_type] ,ES.[login_time] ,ES.[host_name] ,ES.[program_name] ,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] ,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 ) , tbl as ( select [session_id] ,[blocking_session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[percent_complete] ,[DBName] ,[TSQL] ,[QueryPlan] ,[wait_type] ,[login_time] ,[host_name] ,[program_name] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] ,[sql_handle] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[database_id] ,[user_id] ,[connection_id] from tbl0 where [status] in ('suspended', 'running', 'runnable') ) , tbl_group as ( select [blocking_session_id] from tbl where [blocking_session_id]<>0 group by [blocking_session_id] ) select [session_id] ,[blocking_session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[percent_complete] ,[DBName] ,[TSQL] ,[QueryPlan] ,[wait_type] ,[login_time] ,[host_name] ,[program_name] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] ,[sql_handle] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[database_id] ,[user_id] ,[connection_id] from tbl union all select tbl0.[session_id] ,tbl0.[blocking_session_id] ,tbl0.[request_id] ,tbl0.[start_time] ,tbl0.[status] ,tbl0.[command] ,tbl0.[percent_complete] ,tbl0.[DBName] ,tbl0.[TSQL] ,tbl0.[QueryPlan] ,tbl0.[wait_type] ,tbl0.[login_time] ,tbl0.[host_name] ,tbl0.[program_name] ,tbl0.[wait_time] ,tbl0.[last_wait_type] ,tbl0.[wait_resource] ,tbl0.[open_transaction_count] ,tbl0.[open_resultset_count] ,tbl0.[transaction_id] ,tbl0.[context_info] ,tbl0.[estimated_completion_time] ,tbl0.[cpu_time] ,tbl0.[total_elapsed_time] ,tbl0.[scheduler_id] ,tbl0.[task_address] ,tbl0.[reads] ,tbl0.[writes] ,tbl0.[logical_reads] ,tbl0.[text_size] ,tbl0.[language] ,tbl0.[date_format] ,tbl0.[date_first] ,tbl0.[quoted_identifier] ,tbl0.[arithabort] ,tbl0.[ansi_null_dflt_on] ,tbl0.[ansi_defaults] ,tbl0.[ansi_warnings] ,tbl0.[ansi_padding] ,tbl0.[ansi_nulls] ,tbl0.[concat_null_yields_null] ,tbl0.[transaction_isolation_level] ,tbl0.[lock_timeout] ,tbl0.[deadlock_priority] ,tbl0.[row_count] ,tbl0.[prev_error] ,tbl0.[nest_level] ,tbl0.[granted_query_memory] ,tbl0.[executing_managed_code] ,tbl0.[group_id] ,tbl0.[query_hash] ,tbl0.[query_plan_hash] ,tbl0.[most_recent_session_id] ,tbl0.[connect_time] ,tbl0.[net_transport] ,tbl0.[protocol_type] ,tbl0.[protocol_version] ,tbl0.[endpoint_id] ,tbl0.[encrypt_option] ,tbl0.[auth_scheme] ,tbl0.[node_affinity] ,tbl0.[num_reads] ,tbl0.[num_writes] ,tbl0.[last_read] ,tbl0.[last_write] ,tbl0.[net_packet_size] ,tbl0.[client_net_address] ,tbl0.[client_tcp_port] ,tbl0.[local_net_address] ,tbl0.[local_tcp_port] ,tbl0.[parent_connection_id] ,tbl0.[most_recent_sql_handle] ,tbl0.[host_process_id] ,tbl0.[client_version] ,tbl0.[client_interface_name] ,tbl0.[security_id] ,tbl0.[login_name] ,tbl0.[nt_domain] ,tbl0.[nt_user_name] ,tbl0.[memory_usage] ,tbl0.[total_scheduled_time] ,tbl0.[last_request_start_time] ,tbl0.[last_request_end_time] ,tbl0.[is_user_process] ,tbl0.[original_security_id] ,tbl0.[original_login_name] ,tbl0.[last_successful_logon] ,tbl0.[last_unsuccessful_logon] ,tbl0.[unsuccessful_logons] ,tbl0.[authenticating_database_id] ,tbl0.[sql_handle] ,tbl0.[statement_start_offset] ,tbl0.[statement_end_offset] ,tbl0.[plan_handle] ,tbl0.[database_id] ,tbl0.[user_id] ,tbl0.[connection_id] from tbl_group as tg inner join tbl0 on tg.blocking_session_id=tbl0.session_id; GO To take a snapshot of the active queries and then save it to the above tables, create a stored procedure:
An example implementation of a stored procedure to collect snapshots of active requests
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [srv].[AutoStatisticsActiveRequests] AS BEGIN SET NOCOUNT ON; SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; declare @tbl0 table ( [SQLHandle] [varbinary](64) NOT NULL, [TSQL] [nvarchar](max) NULL ); declare @tbl1 table ( [PlanHandle] [varbinary](64) NOT NULL, [SQLHandle] [varbinary](64) NOT NULL, [QueryPlan] [xml] NULL ); declare @tbl2 table ( [session_id] [smallint] NOT NULL, [request_id] [int] NULL, [start_time] [datetime] NULL, [status] [nvarchar](30) NULL, [command] [nvarchar](32) NULL, [sql_handle] [varbinary](64) NULL, [statement_start_offset] [int] NULL, [statement_end_offset] [int] NULL, [plan_handle] [varbinary](64) NULL, [database_id] [smallint] NULL, [user_id] [int] NULL, [connection_id] [uniqueidentifier] NULL, [blocking_session_id] [smallint] NULL, [wait_type] [nvarchar](60) NULL, [wait_time] [int] NULL, [last_wait_type] [nvarchar](60) NULL, [wait_resource] [nvarchar](256) NULL, [open_transaction_count] [int] NULL, [open_resultset_count] [int] NULL, [transaction_id] [bigint] NULL, [context_info] [varbinary](128) NULL, [percent_complete] [real] NULL, [estimated_completion_time] [bigint] NULL, [cpu_time] [int] NULL, [total_elapsed_time] [int] NULL, [scheduler_id] [int] NULL, [task_address] [varbinary](8) NULL, [reads] [bigint] NULL, [writes] [bigint] NULL, [logical_reads] [bigint] NULL, [text_size] [int] NULL, [language] [nvarchar](128) NULL, [date_format] [nvarchar](3) NULL, [date_first] [smallint] NULL, [quoted_identifier] [bit] NULL, [arithabort] [bit] NULL, [ansi_null_dflt_on] [bit] NULL, [ansi_defaults] [bit] NULL, [ansi_warnings] [bit] NULL, [ansi_padding] [bit] NULL, [ansi_nulls] [bit] NULL, [concat_null_yields_null] [bit] NULL, [transaction_isolation_level] [smallint] NULL, [lock_timeout] [int] NULL, [deadlock_priority] [int] NULL, [row_count] [bigint] NULL, [prev_error] [int] NULL, [nest_level] [int] NULL, [granted_query_memory] [int] NULL, [executing_managed_code] [bit] NULL, [group_id] [int] NULL, [query_hash] [binary](8) NULL, [query_plan_hash] [binary](8) NULL, [most_recent_session_id] [int] NULL, [connect_time] [datetime] NULL, [net_transport] [nvarchar](40) NULL, [protocol_type] [nvarchar](40) NULL, [protocol_version] [int] NULL, [endpoint_id] [int] NULL, [encrypt_option] [nvarchar](40) NULL, [auth_scheme] [nvarchar](40) NULL, [node_affinity] [smallint] NULL, [num_reads] [int] NULL, [num_writes] [int] NULL, [last_read] [datetime] NULL, [last_write] [datetime] NULL, [net_packet_size] [int] NULL, [client_net_address] [varchar](48) NULL, [client_tcp_port] [int] NULL, [local_net_address] [varchar](48) NULL, [local_tcp_port] [int] NULL, [parent_connection_id] [uniqueidentifier] NULL, [most_recent_sql_handle] [varbinary](64) NULL, [login_time] [datetime] NULL, [host_name] [nvarchar](128) NULL, [program_name] [nvarchar](128) NULL, [host_process_id] [int] NULL, [client_version] [int] NULL, [client_interface_name] [nvarchar](32) NULL, [security_id] [varbinary](85) NULL, [login_name] [nvarchar](128) NULL, [nt_domain] [nvarchar](128) NULL, [nt_user_name] [nvarchar](128) NULL, [memory_usage] [int] NULL, [total_scheduled_time] [int] NULL, [last_request_start_time] [datetime] NULL, [last_request_end_time] [datetime] NULL, [is_user_process] [bit] NULL, [original_security_id] [varbinary](85) NULL, [original_login_name] [nvarchar](128) NULL, [last_successful_logon] [datetime] NULL, [last_unsuccessful_logon] [datetime] NULL, [unsuccessful_logons] [bigint] NULL, [authenticating_database_id] [int] NULL, [TSQL] [nvarchar](max) NULL, [QueryPlan] [xml] NULL ); insert into @tbl2 ( [session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,[TSQL] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[QueryPlan] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] ) select [session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,[TSQL] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[QueryPlan] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] from [inf].[vRequestDetail]; insert into @tbl1 ( [PlanHandle], [SQLHandle], [QueryPlan] ) select [plan_handle], [sql_handle], (select top(1) [query_plan] from sys.dm_exec_query_plan([plan_handle])) as [QueryPlan] from @tbl2 where (select top(1) [query_plan] from sys.dm_exec_query_plan([plan_handle])) is not null group by [plan_handle], [sql_handle]; insert into @tbl0 ( [SQLHandle], [TSQL] ) select [sql_handle], (select top(1) text from sys.dm_exec_sql_text([sql_handle])) as [TSQL]--[query_text] from @tbl2 where (select top(1) text from sys.dm_exec_sql_text([sql_handle])) is not null group by [sql_handle]; ;merge [srv].[SQLQuery] as trg using @tbl0 as src on trg.[SQLHandle]=src.[SQLHandle] WHEN NOT MATCHED BY TARGET THEN INSERT ( [SQLHandle], [TSQL] ) VALUES ( src.[SQLHandle], src.[TSQL] ); ;merge [srv].[PlanQuery] as trg using @tbl1 as src on trg.[SQLHandle]=src.[SQLHandle] and trg.[PlanHandle]=src.[PlanHandle] WHEN NOT MATCHED BY TARGET THEN INSERT ( [PlanHandle], [SQLHandle], [QueryPlan] ) VALUES ( src.[PlanHandle], src.[SQLHandle], src.[QueryPlan] ); select [session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,(select top(1) 1 from @tbl0 as t where t.[SQLHandle]=tt.[sql_handle]) as [TSQL] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,(select top(1) 1 from @tbl1 as t where t.[PlanHandle]=tt.[plan_handle]) as [QueryPlan] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] into #ttt from @tbl2 as tt group by [session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,[TSQL] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id]; UPDATE trg SET trg.[status] =case when (trg.[status]<>'suspended') then coalesce(src.[status] collate DATABASE_DEFAULT, trg.[status] collate DATABASE_DEFAULT) else trg.[status] end --,trg.[command] =coalesce(src.[command] collate DATABASE_DEFAULT, trg.[command] collate DATABASE_DEFAULT) --,trg.[sql_handle] =coalesce(src.[sql_handle] , trg.[sql_handle] ) --,trg.[TSQL] =coalesce(src.[TSQL] collate DATABASE_DEFAULT, trg.[TSQL] collate DATABASE_DEFAULT) ,trg.[statement_start_offset] =coalesce(src.[statement_start_offset] , trg.[statement_start_offset] ) ,trg.[statement_end_offset] =coalesce(src.[statement_end_offset] , trg.[statement_end_offset] ) --,trg.[plan_handle] =coalesce(src.[plan_handle] , trg.[plan_handle] ) --,trg.[QueryPlan] =coalesce(src.[QueryPlan] , trg.[QueryPlan] ) --,trg.[connection_id] =coalesce(src.[connection_id] , trg.[connection_id] ) ,trg.[blocking_session_id] =coalesce(trg.[blocking_session_id] , src.[blocking_session_id] ) ,trg.[wait_type] =coalesce(trg.[wait_type] collate DATABASE_DEFAULT, src.[wait_type] collate DATABASE_DEFAULT) ,trg.[wait_time] =coalesce(src.[wait_time] , trg.[wait_time] ) ,trg.[last_wait_type] =coalesce(src.[last_wait_type] collate DATABASE_DEFAULT, trg.[last_wait_type] collate DATABASE_DEFAULT) ,trg.[wait_resource] =coalesce(src.[wait_resource] collate DATABASE_DEFAULT, trg.[wait_resource] collate DATABASE_DEFAULT) ,trg.[open_transaction_count] =coalesce(src.[open_transaction_count] , trg.[open_transaction_count] ) ,trg.[open_resultset_count] =coalesce(src.[open_resultset_count] , trg.[open_resultset_count] ) --,trg.[transaction_id] =coalesce(src.[transaction_id] , trg.[transaction_id] ) ,trg.[context_info] =coalesce(src.[context_info] , trg.[context_info] ) ,trg.[percent_complete] =coalesce(src.[percent_complete] , trg.[percent_complete] ) ,trg.[estimated_completion_time] =coalesce(src.[estimated_completion_time] , trg.[estimated_completion_time] ) ,trg.[cpu_time] =coalesce(src.[cpu_time] , trg.[cpu_time] ) ,trg.[total_elapsed_time] =coalesce(src.[total_elapsed_time] , trg.[total_elapsed_time] ) ,trg.[scheduler_id] =coalesce(src.[scheduler_id] , trg.[scheduler_id] ) ,trg.[task_address] =coalesce(src.[task_address] , trg.[task_address] ) ,trg.[reads] =coalesce(src.[reads] , trg.[reads] ) ,trg.[writes] =coalesce(src.[writes] , trg.[writes] ) ,trg.[logical_reads] =coalesce(src.[logical_reads] , trg.[logical_reads] ) ,trg.[text_size] =coalesce(src.[text_size] , trg.[text_size] ) ,trg.[language] =coalesce(src.[language] collate DATABASE_DEFAULT, trg.[language] collate DATABASE_DEFAULT) ,trg.[date_format] =coalesce(src.[date_format] , trg.[date_format] ) ,trg.[date_first] =coalesce(src.[date_first] , trg.[date_first] ) ,trg.[quoted_identifier] =coalesce(src.[quoted_identifier] , trg.[quoted_identifier] ) ,trg.[arithabort] =coalesce(src.[arithabort] , trg.[arithabort] ) ,trg.[ansi_null_dflt_on] =coalesce(src.[ansi_null_dflt_on] , trg.[ansi_null_dflt_on] ) ,trg.[ansi_defaults] =coalesce(src.[ansi_defaults] , trg.[ansi_defaults] ) ,trg.[ansi_warnings] =coalesce(src.[ansi_warnings] , trg.[ansi_warnings] ) ,trg.[ansi_padding] =coalesce(src.[ansi_padding] , trg.[ansi_padding] ) ,trg.[ansi_nulls] =coalesce(src.[ansi_nulls] , trg.[ansi_nulls] ) ,trg.[concat_null_yields_null] =coalesce(src.[concat_null_yields_null] , trg.[concat_null_yields_null] ) ,trg.[transaction_isolation_level] =coalesce(src.[transaction_isolation_level] , trg.[transaction_isolation_level] ) ,trg.[lock_timeout] =coalesce(src.[lock_timeout] , trg.[lock_timeout] ) ,trg.[deadlock_priority] =coalesce(src.[deadlock_priority] , trg.[deadlock_priority] ) ,trg.[row_count] =coalesce(src.[row_count] , trg.[row_count] ) ,trg.[prev_error] =coalesce(src.[prev_error] , trg.[prev_error] ) ,trg.[nest_level] =coalesce(src.[nest_level] , trg.[nest_level] ) ,trg.[granted_query_memory] =coalesce(src.[granted_query_memory] , trg.[granted_query_memory] ) ,trg.[executing_managed_code] =coalesce(src.[executing_managed_code] , trg.[executing_managed_code] ) ,trg.[group_id] =coalesce(src.[group_id] , trg.[group_id] ) ,trg.[query_hash] =coalesce(src.[query_hash] , trg.[query_hash] ) ,trg.[query_plan_hash] =coalesce(src.[query_plan_hash] , trg.[query_plan_hash] ) ,trg.[most_recent_session_id] =coalesce(src.[most_recent_session_id] , trg.[most_recent_session_id] ) ,trg.[connect_time] =coalesce(src.[connect_time] , trg.[connect_time] ) ,trg.[net_transport] =coalesce(src.[net_transport] collate DATABASE_DEFAULT, trg.[net_transport] collate DATABASE_DEFAULT) ,trg.[protocol_type] =coalesce(src.[protocol_type] collate DATABASE_DEFAULT, trg.[protocol_type] collate DATABASE_DEFAULT) ,trg.[protocol_version] =coalesce(src.[protocol_version] , trg.[protocol_version] ) ,trg.[endpoint_id] =coalesce(src.[endpoint_id] , trg.[endpoint_id] ) ,trg.[encrypt_option] =coalesce(src.[encrypt_option] collate DATABASE_DEFAULT, trg.[encrypt_option] collate DATABASE_DEFAULT) ,trg.[auth_scheme] =coalesce(src.[auth_scheme] collate DATABASE_DEFAULT, trg.[auth_scheme] collate DATABASE_DEFAULT) ,trg.[node_affinity] =coalesce(src.[node_affinity] , trg.[node_affinity] ) ,trg.[num_reads] =coalesce(src.[num_reads] , trg.[num_reads] ) ,trg.[num_writes] =coalesce(src.[num_writes] , trg.[num_writes] ) ,trg.[last_read] =coalesce(src.[last_read] , trg.[last_read] ) ,trg.[last_write] =coalesce(src.[last_write] , trg.[last_write] ) ,trg.[net_packet_size] =coalesce(src.[net_packet_size] , trg.[net_packet_size] ) ,trg.[client_net_address] =coalesce(src.[client_net_address] collate DATABASE_DEFAULT, trg.[client_net_address] collate DATABASE_DEFAULT) ,trg.[client_tcp_port] =coalesce(src.[client_tcp_port] , trg.[client_tcp_port] ) ,trg.[local_net_address] =coalesce(src.[local_net_address] collate DATABASE_DEFAULT, trg.[local_net_address] collate DATABASE_DEFAULT) ,trg.[local_tcp_port] =coalesce(src.[local_tcp_port] , trg.[local_tcp_port] ) ,trg.[parent_connection_id] =coalesce(src.[parent_connection_id] , trg.[parent_connection_id] ) ,trg.[most_recent_sql_handle] =coalesce(src.[most_recent_sql_handle] , trg.[most_recent_sql_handle] ) ,trg.[login_time] =coalesce(src.[login_time] , trg.[login_time] ) ,trg.[host_name] =coalesce(src.[host_name] collate DATABASE_DEFAULT, trg.[host_name] collate DATABASE_DEFAULT) ,trg.[program_name] =coalesce(src.[program_name] collate DATABASE_DEFAULT, trg.[program_name] collate DATABASE_DEFAULT) ,trg.[host_process_id] =coalesce(src.[host_process_id] , trg.[host_process_id] ) ,trg.[client_version] =coalesce(src.[client_version] , trg.[client_version] ) ,trg.[client_interface_name] =coalesce(src.[client_interface_name] collate DATABASE_DEFAULT, trg.[client_interface_name] collate DATABASE_DEFAULT) ,trg.[security_id] =coalesce(src.[security_id] , trg.[security_id] ) ,trg.[login_name] =coalesce(src.[login_name] collate DATABASE_DEFAULT, trg.[login_name] collate DATABASE_DEFAULT) ,trg.[nt_domain] =coalesce(src.[nt_domain] collate DATABASE_DEFAULT, trg.[nt_domain] collate DATABASE_DEFAULT) ,trg.[nt_user_name] =coalesce(src.[nt_user_name] collate DATABASE_DEFAULT, trg.[nt_user_name] collate DATABASE_DEFAULT) ,trg.[memory_usage] =coalesce(src.[memory_usage] , trg.[memory_usage] ) ,trg.[total_scheduled_time] =coalesce(src.[total_scheduled_time] , trg.[total_scheduled_time] ) ,trg.[last_request_start_time] =coalesce(src.[last_request_start_time] , trg.[last_request_start_time] ) ,trg.[last_request_end_time] =coalesce(src.[last_request_end_time] , trg.[last_request_end_time] ) ,trg.[is_user_process] =coalesce(src.[is_user_process] , trg.[is_user_process] ) ,trg.[original_security_id] =coalesce(src.[original_security_id] , trg.[original_security_id] ) ,trg.[original_login_name] =coalesce(src.[original_login_name] collate DATABASE_DEFAULT, trg.[original_login_name] collate DATABASE_DEFAULT) ,trg.[last_successful_logon] =coalesce(src.[last_successful_logon] , trg.[last_successful_logon] ) ,trg.[last_unsuccessful_logon] =coalesce(src.[last_unsuccessful_logon] , trg.[last_unsuccessful_logon] ) ,trg.[unsuccessful_logons] =coalesce(src.[unsuccessful_logons] , trg.[unsuccessful_logons] ) ,trg.[authenticating_database_id] =coalesce(src.[authenticating_database_id] , trg.[authenticating_database_id] ) from [srv].[RequestStatistics] as trg inner join #ttt as src on (trg.[session_id]=src.[session_id]) and (trg.[request_id]=src.[request_id]) and (trg.[database_id]=src.[database_id]) and (trg.[user_id]=src.[user_id]) and (trg.[start_time]=src.[start_time]) and (trg.[command] collate DATABASE_DEFAULT=src.[command] collate DATABASE_DEFAULT) and ((trg.[sql_handle]=src.[sql_handle] and src.[sql_handle] IS NOT NULL) or (src.[sql_handle] IS NULL)) and ((trg.[plan_handle]=src.[plan_handle] and src.[plan_handle] IS NOT NULL) or (src.[plan_handle] IS NULL)) and (trg.[transaction_id]=src.[transaction_id]) and ((trg.[connection_id]=src.[connection_id] and src.[connection_id] IS NOT NULL) or (src.[connection_id] IS NULL)); UPDATE trg SET trg.[EndRegUTCDate]=GetUTCDate() from [srv].[RequestStatistics] as trg where not exists( select top(1) 1 from #ttt as src where (trg.[session_id]=src.[session_id]) and (trg.[request_id]=src.[request_id]) and (trg.[database_id]=src.[database_id]) and (trg.[user_id]=src.[user_id]) and (trg.[start_time]=src.[start_time]) and (trg.[command] collate DATABASE_DEFAULT=src.[command] collate DATABASE_DEFAULT) and ((trg.[sql_handle]=src.[sql_handle] and src.[sql_handle] IS NOT NULL) or (src.[sql_handle] IS NULL)) and ((trg.[plan_handle]=src.[plan_handle] and src.[plan_handle] IS NOT NULL) or (src.[plan_handle] IS NULL)) and (trg.[transaction_id]=src.[transaction_id]) and ((trg.[connection_id]=src.[connection_id] and src.[connection_id] IS NOT NULL) or (src.[connection_id] IS NULL)) ); INSERT into [srv].[RequestStatistics] ([session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] --,[TSQL] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] --,[QueryPlan] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id]) select src.[session_id] ,src.[request_id] ,src.[start_time] ,src.[status] ,src.[command] ,src.[sql_handle] --,src.[TSQL] ,src.[statement_start_offset] ,src.[statement_end_offset] ,src.[plan_handle] --,src.[QueryPlan] ,src.[database_id] ,src.[user_id] ,src.[connection_id] ,src.[blocking_session_id] ,src.[wait_type] ,src.[wait_time] ,src.[last_wait_type] ,src.[wait_resource] ,src.[open_transaction_count] ,src.[open_resultset_count] ,src.[transaction_id] ,src.[context_info] ,src.[percent_complete] ,src.[estimated_completion_time] ,src.[cpu_time] ,src.[total_elapsed_time] ,src.[scheduler_id] ,src.[task_address] ,src.[reads] ,src.[writes] ,src.[logical_reads] ,src.[text_size] ,src.[language] ,src.[date_format] ,src.[date_first] ,src.[quoted_identifier] ,src.[arithabort] ,src.[ansi_null_dflt_on] ,src.[ansi_defaults] ,src.[ansi_warnings] ,src.[ansi_padding] ,src.[ansi_nulls] ,src.[concat_null_yields_null] ,src.[transaction_isolation_level] ,src.[lock_timeout] ,src.[deadlock_priority] ,src.[row_count] ,src.[prev_error] ,src.[nest_level] ,src.[granted_query_memory] ,src.[executing_managed_code] ,src.[group_id] ,src.[query_hash] ,src.[query_plan_hash] ,src.[most_recent_session_id] ,src.[connect_time] ,src.[net_transport] ,src.[protocol_type] ,src.[protocol_version] ,src.[endpoint_id] ,src.[encrypt_option] ,src.[auth_scheme] ,src.[node_affinity] ,src.[num_reads] ,src.[num_writes] ,src.[last_read] ,src.[last_write] ,src.[net_packet_size] ,src.[client_net_address] ,src.[client_tcp_port] ,src.[local_net_address] ,src.[local_tcp_port] ,src.[parent_connection_id] ,src.[most_recent_sql_handle] ,src.[login_time] ,src.[host_name] ,src.[program_name] ,src.[host_process_id] ,src.[client_version] ,src.[client_interface_name] ,src.[security_id] ,src.[login_name] ,src.[nt_domain] ,src.[nt_user_name] ,src.[memory_usage] ,src.[total_scheduled_time] ,src.[last_request_start_time] ,src.[last_request_end_time] ,src.[is_user_process] ,src.[original_security_id] ,src.[original_login_name] ,src.[last_successful_logon] ,src.[last_unsuccessful_logon] ,src.[unsuccessful_logons] ,src.[authenticating_database_id] from #ttt as src where not exists( select top(1) 1 from [srv].[RequestStatistics] as trg where (trg.[session_id]=src.[session_id]) and (trg.[request_id]=src.[request_id]) and (trg.[database_id]=src.[database_id]) and (trg.[user_id]=src.[user_id]) and (trg.[start_time]=src.[start_time]) and (trg.[command] collate DATABASE_DEFAULT=src.[command] collate DATABASE_DEFAULT) and ((trg.[sql_handle]=src.[sql_handle] and src.[sql_handle] IS NOT NULL) or (src.[sql_handle] IS NULL)) and ((trg.[plan_handle]=src.[plan_handle] and src.[plan_handle] IS NOT NULL) or (src.[plan_handle] IS NULL)) and (trg.[transaction_id]=src.[transaction_id]) and ((trg.[connection_id]=src.[connection_id] and src.[connection_id] IS NOT NULL) or (src.[connection_id] IS NULL)) ); drop table #ttt; END GO The collection process can be automated. For example, if a call to this stored procedure is placed on an Agent with a schedule (for example, every 10 seconds) or by an event (for example, [Databases]. [Active Transactions]. [_ Total]> 0).
At the end of the day, we do a general analysis and save the result to a table via a stored procedure call.
Table implementation
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [srv].[IndicatorStatistics]( [execution_count] [bigint] NOT NULL, [max_total_elapsed_timeSec] [decimal](38, 6) NOT NULL, [max_total_elapsed_timeLastSec] [decimal](38, 6) NOT NULL, [DATE] [date] NOT NULL, CONSTRAINT [PK_IndicatorStatistics] PRIMARY KEY CLUSTERED ( [DATE] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO Implementing a stored procedure
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [srv].[AutoStatisticsTimeRequests] AS BEGIN SET NOCOUNT ON; SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; delete from [srv].[TSQL_DAY_Statistics] where [DATE]<=DateAdd(day,-180,GetUTCDate()); INSERT INTO [srv].[TSQL_DAY_Statistics] ([command] ,[DBName] ,[PlanHandle] ,[SqlHandle] ,[execution_count] ,[min_wait_timeSec] ,[min_estimated_completion_timeSec] ,[min_cpu_timeSec] ,[min_total_elapsed_timeSec] ,[min_lock_timeoutSec] ,[max_wait_timeSec] ,[max_estimated_completion_timeSec] ,[max_cpu_timeSec] ,[max_total_elapsed_timeSec] ,[max_lock_timeoutSec] ,[DATE]) SELECT [command] ,[DBName] ,[plan_handle] ,[sql_handle] ,count(*) as [execution_count] ,min([wait_timeSec]) as [min_wait_timeSec] ,min([estimated_completion_timeSec]) as [min_estimated_completion_timeSec] ,min([cpu_timeSec]) as [min_cpu_timeSec] ,min([total_elapsed_timeSec]) as [min_total_elapsed_timeSec] ,min([lock_timeoutSec]) as [min_lock_timeoutSec] ,max([wait_timeSec]) as [max_wait_timeSec] ,max([estimated_completion_timeSec]) as [max_estimated_completion_timeSec] ,max([cpu_timeSec]) as [max_cpu_timeSec] ,max([total_elapsed_timeSec]) as [max_total_elapsed_timeSec] ,max([lock_timeoutSec]) as [max_lock_timeoutSec] ,cast([InsertUTCDate] as [DATE]) as [DATE] FROM [srv].[vRequestStatistics] with(readuncommitted) where cast([InsertUTCDate] as date) = DateAdd(day,-1,cast(GetUTCDate() as date)) and [command] in ( 'UPDATE', 'TRUNCATE TABLE', 'SET OPTION ON', 'SET COMMAND', 'SELECT INTO', 'SELECT', 'NOP', 'INSERT', 'EXECUTE', 'DELETE', 'DECLARE', 'CONDITIONAL', 'BULK INSERT', 'BEGIN TRY', 'BEGIN CATCH', 'AWAITING COMMAND', 'ASSIGN', 'ALTER TABLE' ) and [database_id] in ( /* DB_ID('_')*/ ) and [DBName] is not null group by [command] ,[DBName] ,[plan_handle] ,[sql_handle] ,cast([InsertUTCDate] as [DATE]); declare @inddt int=1; ;with tbl11 as ( select [SqlHandle], max([max_total_elapsed_timeSec]) as [max_total_elapsed_timeSec] ,min([max_total_elapsed_timeSec]) as [min_max_total_elapsed_timeSec] ,avg([max_total_elapsed_timeSec]) as [avg_max_total_elapsed_timeSec] ,sum([execution_count]) as [execution_count] from [srv].[TSQL_DAY_Statistics] where [max_total_elapsed_timeSec]>=0.001 and [DATE]<cast(DateAdd(day,-@inddt,cast(GetUTCDate() as date)) as date) group by [SqlHandle] ) , tbl12 as ( select [SqlHandle], max([max_total_elapsed_timeSec]) as [max_total_elapsed_timeSec] ,min([max_total_elapsed_timeSec]) as [min_max_total_elapsed_timeSec] ,avg([max_total_elapsed_timeSec]) as [avg_max_total_elapsed_timeSec] ,[DATE] from [srv].[TSQL_DAY_Statistics] where [max_total_elapsed_timeSec]>=0.001 and [DATE]=cast(DateAdd(day,-@inddt,cast(GetUTCDate() as date)) as date) group by [SqlHandle], [DATE] ) , tbl1_sum as (select sum([execution_count]) as [sum_execution_count] from tbl11) , tbl1_total as ( select (select [sum_execution_count] from tbl1_sum) as [execution_count] , sum(tbl11.[max_total_elapsed_timeSec]*tbl11.[execution_count])/(select [sum_execution_count] from tbl1_sum) as [max_total_elapsed_timeSec] , sum(tbl12.[max_total_elapsed_timeSec]*tbl11.[execution_count])/(select [sum_execution_count] from tbl1_sum) as [max_total_elapsed_timeLastSec] , tbl12.[DATE] from tbl11 inner join tbl12 on tbl11.[SqlHandle]=tbl12.[SqlHandle] group by tbl12.[DATE] ) INSERT INTO [srv].[IndicatorStatistics] ([DATE] ,[execution_count] ,[max_total_elapsed_timeSec] ,[max_total_elapsed_timeLastSec] ) select t1.[DATE] ,t1.[execution_count] ,t1.[max_total_elapsed_timeSec] ,t1.[max_total_elapsed_timeLastSec] from tbl1_total as t1; declare @dt datetime=DateAdd(day,-2,GetUTCDate()); INSERT INTO [srv].[RequestStatisticsArchive] ([session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] ,[InsertUTCDate] ,[EndRegUTCDate]) SELECT [session_id] ,[request_id] ,[start_time] ,[status] ,[command] ,[sql_handle] ,[statement_start_offset] ,[statement_end_offset] ,[plan_handle] ,[database_id] ,[user_id] ,[connection_id] ,[blocking_session_id] ,[wait_type] ,[wait_time] ,[last_wait_type] ,[wait_resource] ,[open_transaction_count] ,[open_resultset_count] ,[transaction_id] ,[context_info] ,[percent_complete] ,[estimated_completion_time] ,[cpu_time] ,[total_elapsed_time] ,[scheduler_id] ,[task_address] ,[reads] ,[writes] ,[logical_reads] ,[text_size] ,[language] ,[date_format] ,[date_first] ,[quoted_identifier] ,[arithabort] ,[ansi_null_dflt_on] ,[ansi_defaults] ,[ansi_warnings] ,[ansi_padding] ,[ansi_nulls] ,[concat_null_yields_null] ,[transaction_isolation_level] ,[lock_timeout] ,[deadlock_priority] ,[row_count] ,[prev_error] ,[nest_level] ,[granted_query_memory] ,[executing_managed_code] ,[group_id] ,[query_hash] ,[query_plan_hash] ,[most_recent_session_id] ,[connect_time] ,[net_transport] ,[protocol_type] ,[protocol_version] ,[endpoint_id] ,[encrypt_option] ,[auth_scheme] ,[node_affinity] ,[num_reads] ,[num_writes] ,[last_read] ,[last_write] ,[net_packet_size] ,[client_net_address] ,[client_tcp_port] ,[local_net_address] ,[local_tcp_port] ,[parent_connection_id] ,[most_recent_sql_handle] ,[login_time] ,[host_name] ,[program_name] ,[host_process_id] ,[client_version] ,[client_interface_name] ,[security_id] ,[login_name] ,[nt_domain] ,[nt_user_name] ,[memory_usage] ,[total_scheduled_time] ,[last_request_start_time] ,[last_request_end_time] ,[is_user_process] ,[original_security_id] ,[original_login_name] ,[last_successful_logon] ,[last_unsuccessful_logon] ,[unsuccessful_logons] ,[authenticating_database_id] ,[InsertUTCDate] ,[EndRegUTCDate] FROM [srv].[RequestStatistics] where [InsertUTCDate]<=@dt; delete from [srv].[RequestStatistics] where [InsertUTCDate]<=@dt; END GO As can be seen from the code, the stored procedure also cleans the [srv]. [RequestStatistics] table to prevent its growth and ensure quick insertion of snapshots of active requests.
This stored procedure can also be set in the Agent's call every day at the end of the day.
We now turn to the analysis of the collected data.
To compare the current state of the DBMS to the previous period, you can use the following view:
View implementation
USE [ ] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE view [srv].[vIndicatorStatistics] as SELECT [DATE] ,[execution_count] ,[max_total_elapsed_timeSec] ,[max_total_elapsed_timeLastSec] ,[max_total_elapsed_timeLastSec]-[max_total_elapsed_timeSec] as [DiffSnapshot] ,([max_total_elapsed_timeLastSec]-[max_total_elapsed_timeSec])*100/[max_total_elapsed_timeSec] as [% Snapshot] , case when ([max_total_elapsed_timeLastSec]<[max_total_elapsed_timeSec]) then N'' else case when ([max_total_elapsed_timeLastSec]>[max_total_elapsed_timeSec]) then N'' else N' ' end end as 'IndicatorSnapshot' FROM [srv].[IndicatorStatistics] GO To compare the current state of the DBMS to a specific day, you can run the following query:
Request
with tbl1 as ( select min(total_elapsed_timeSec) as [MIN], max(total_elapsed_timeSec) as [MAX], avg(total_elapsed_timeSec) as [AVG], [sql_handle], count(*) as [Count], '2017-11-01' as [DATE] from [srv].[vRequestStatisticsArchive] where [start_time] between '2017-11-01T07:00:00' and '2017-11-01T21:00:00' group by [sql_handle] ) , tbl2 as ( select min(total_elapsed_timeSec) as [MIN], max(total_elapsed_timeSec) as [MAX], avg(total_elapsed_timeSec) as [AVG], [sql_handle], count(*) as [Count], '2017-11-08' as [DATE] from [srv].[vRequestStatistics] where [start_time] between '2017-11-08T07:00:00' and '2017-11-08T21:00:00' group by [sql_handle] ) select coalesce(tbl1.[sql_handle], tbl2.[sql_handle]) as [sql_handle], coalesce(tbl1.[MIN], 0) as [MIN 01.11.2017], coalesce(tbl2.[MIN], 0) as [MIN 08.11.2017], coalesce(tbl1.[MAX], 0) as [MAX 01.11.2017], coalesce(tbl2.[MAX], 0) as [MAX 08.11.2017], coalesce(tbl1.[AVG], 0) as [AVG 01.11.2017], coalesce(tbl2.[AVG], 0) as [AVG 08.11.2017], coalesce(tbl1.[Count], 0) as [Count 01.11.2017], coalesce(tbl2.[Count], 0) as [Count 08.11.2017] from tbl1 left outer join tbl2 on tbl1.[sql_handle]=tbl2.[sql_handle]; GO It compares work from 07-00 to 21-00 1 and November 8, 2017 (for example, this is the working time of the enterprise, to exclude the analysis of the work of the routine tasks).
This download can be arranged as a detailed report and attached to the general report obtained from the [srv]. [VIndicatorStatistics] view.
To understand how the query was executed and what happened at any given time, it suffices to refer to the [srv] view. [vRequestStatistics] with filter by [start_time] (date and time of the request launch).
Result
This article has reviewed an example of the implementation of a general performance indicator of MS SQL Server, which allows determining the status of the DBMS relative to the previous period or a specific day. As a measure, the entire query execution time (Total Elapsed Time) was taken.
This method is universal. T it needs to be adjusted, proceeding from requirements, and also to define a measure (t e that we will collect and compare).
Also, this approach allows you to detect a problem immediately or for a certain range of past time.
On the received data, you can implement a robot that would make decisions on which queries to improve or disable, in order to prevent the fall of the entire system, and then notify administrators.
Sources:
» Implementing a performance indicator for queries, stored procedures and triggers in MS SQL Server
» MSDN
Source: https://habr.com/ru/post/342794/
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