1 2 3 4 | DBCC SHOW_STATISTICS ( table_or_indexed_view_name , target ) [ WITH [ NO_INFOMSGS ] < option > [ , n ] ] < option > :: = STAT_HEADER | DENSITY_VECTOR | HISTOGRAM | STATS_STREAM |
1 2 3 4 5 6 7 8 9 10 11 12 | select ind. name , ind.type_desc, a.page_count, a.record_count, a.index_depth from sys.indexes ind , sys.dm_db_index_physical_stats(DB_ID( 'TEST' ),OBJECT_ID(N 'dbo.User1' ), null , null , 'DETAILED' ) a where ind.index_id = a.index_id and ind.object_id = OBJECT_ID(N 'dbo.User1' ) |
1 2 3 | sp_createstats [ [ @indexonly = ] 'indexonly' ] [ , [ @fullscan = ] 'fullscan' ] [ , [ @norecompute = ] 'norecompute' ] |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | UPDATE STATISTICS table_or_indexed_view_name [ { { index_or_statistics__name } | ( { index_or_statistics_name } [ ,...n ] ) } ] [ WITH [ FULLSCAN | SAMPLE number { PERCENT | ROWS } | RESAMPLE | <update_stats_stream_option> [ ,...n ] ] [ [ , ] [ ALL | COLUMNS | INDEX ] [ [ , ] NORECOMPUTE ] ] ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 | SELECT TOP 10 [Average IO] = (total_logical_reads + total_logical_writes) / qs.execution_count ,[Total IO] = (total_logical_reads + total_logical_writes) ,[Execution count ] = qs.execution_count ,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, ( CASE WHEN qs.statement_end_offset = -1 THEN LEN( CONVERT (NvarCHAR( MAX ), qt.text)) * 2 ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) ,[Parent Query] = qt.text ,DatabaseName = DB_NAME(qt.dbid) FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt ORDER BY [Average IO] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | SELECT TOP 10 [Average CPU used] = total_worker_time / qs.execution_count ,[Total CPU used] = total_worker_time ,[Execution count ] = qs.execution_count ,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, ( CASE WHEN qs.statement_end_offset = -1 THEN LEN( CONVERT (NvarCHAR( MAX ), qt.text)) * 2 ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) ,[Parent Query] = qt.text ,DatabaseName = DB_NAME(qt.dbid) FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt ORDER BY [Average CPU used] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | SELECT TOP 10 [Average CLR Time ] = total_clr_time / execution_count ,[Total CLR Time ] = total_clr_time ,[Execution count ] = qs.execution_count ,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, ( CASE WHEN qs.statement_end_offset = -1 THEN LEN( CONVERT (NvarCHAR( MAX ), qt.text)) * 2 ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) ,[Parent Query] = qt.text ,DatabaseName = DB_NAME(qt.dbid) FROM sys.dm_exec_query_stats as qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt WHERE total_clr_time <> 0 ORDER BY [Average CLR Time ] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 | SELECT TOP 10 [Execution count ] = execution_count ,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, ( CASE WHEN qs.statement_end_offset = -1 THEN LEN( CONVERT (NvarCHAR( MAX ), qt.text)) * 2 ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) ,[Parent Query] = qt.text ,DatabaseName = DB_NAME(qt.dbid) FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt ORDER BY [Execution count ] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 | SELECT TOP 10 [Average Time Blocked] = (total_elapsed_time - total_worker_time) / qs.execution_count ,[Total Time Blocked] = total_elapsed_time - total_worker_time ,[Execution count ] = qs.execution_count ,[Individual Query] = SUBSTRING (qt.text,qs.statement_start_offset/2, ( CASE WHEN qs.statement_end_offset = -1 THEN LEN( CONVERT (NvarCHAR( MAX ), qt.text)) * 2 ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) ,[Parent Query] = qt.text ,DatabaseName = DB_NAME(qt.dbid) FROM sys.dm_exec_query_stats qs CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as qt ORDER BY [Average Time Blocked] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 | SELECT TOP 10 [Total Cost] = ROUND(avg_total_user_cost * avg_user_impact * (user_seeks + user_scans),0) , avg_user_impact , TableName = statement , [EqualityUsage] = equality_columns , [InequalityUsage] = inequality_columns , [Include Cloumns] = included_columns FROM sys.dm_db_missing_index_groups g INNER JOIN sys.dm_db_missing_index_group_stats s ON s.group_handle = g.index_group_handle INNER JOIN sys.dm_db_missing_index_details d ON d.index_handle = g.index_handle ORDER BY [Total Cost] DESC ; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | SELECT [Spid] = session_Id , ecid , [ Database ] = DB_NAME(sp.dbid) , [ User ] = nt_username , [Status] = er.status , [Wait] = 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) ,[Parent Query] = qt.text , Program = 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 session_Id NOT IN (@@SPID) -- Ignore this current statement. ORDER BY 1, 2 |