May 17, 2026, 11:40 PM
This commit is contained in:
Paweł Domański
@@ -0,0 +1,39 @@
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-- If you need more information, here is a nice SQL script, which I use from time to time:
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DECLARE @TabName varchar(100)
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CREATE TABLE #temp (
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TabName varchar(200), IndexName varchar(200), IndexDescr varchar(200),
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IndexKeys varchar(200), IndexSize int
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)
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DECLARE cur CURSOR FAST_FORWARD LOCAL FOR
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SELECT name FROM sysobjects WHERE xtype = 'U'
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OPEN cur
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FETCH NEXT FROM cur INTO @TabName
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WHILE @@FETCH_STATUS = 0
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BEGIN
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INSERT INTO #temp (IndexName, IndexDescr, IndexKeys)
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EXEC sp_helpindex @TabName
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UPDATE #temp SET TabName = @TabName WHERE TabName IS NULL
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FETCH NEXT FROM cur INTO @TabName
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END
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CLOSE cur
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DEALLOCATE cur
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DECLARE @ValueCoef int
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SELECT @ValueCoef = low FROM Master.dbo.spt_values WHERE number = 1 AND type = N'E'
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UPDATE #temp SET IndexSize =
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((CAST(sysindexes.used AS bigint) * @ValueCoef)/1024)/1024
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FROM sysobjects INNER JOIN sysindexes ON sysobjects.id = sysindexes.id
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INNER JOIN #temp T ON T.TabName = sysobjects.name AND T.IndexName = sysindexes.name
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SELECT * FROM #temp
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ORDER BY TabName, IndexName
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DROP TABLE #temp
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@@ -0,0 +1,4 @@
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select * from sys.dm_db_index_usage_stats
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where-- object_id=399340487
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user_scans=0 and user_seeks=0 and user_lookups=0
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and database_id=40
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@@ -0,0 +1,144 @@
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-- tworzy skrypt do tworzenia indeksów,
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--bardzo przydatny do przenoszenia bazy wraz z obiektami albo do odgrywania brakujących indeksów
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SELECT ' CREATE ' +
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CASE
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WHEN I.is_unique = 1 THEN ' UNIQUE '
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ELSE ''
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END +
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I.type_desc COLLATE DATABASE_DEFAULT + ' INDEX ' +
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I.name + ' ON ' +
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SCHEMA_NAME(T.schema_id) + '.' + T.name + ' ( ' +
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KeyColumns + ' ) ' +
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ISNULL(' INCLUDE (' + IncludedColumns + ' ) ', '') +
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ISNULL(' WHERE ' + I.filter_definition, '') + ' WITH ( ' +
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CASE
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WHEN I.is_padded = 1 THEN ' PAD_INDEX = ON '
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ELSE ' PAD_INDEX = OFF '
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END + ',' +
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'FILLFACTOR = ' + CONVERT(
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CHAR(5),
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CASE
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WHEN I.fill_factor = 0 THEN 100
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ELSE I.fill_factor
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END
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) + ',' +
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-- default value
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'SORT_IN_TEMPDB = OFF ' + ',' +
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CASE
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WHEN I.ignore_dup_key = 1 THEN ' IGNORE_DUP_KEY = ON '
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ELSE ' IGNORE_DUP_KEY = OFF '
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END + ',' +
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CASE
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WHEN ST.no_recompute = 0 THEN ' STATISTICS_NORECOMPUTE = OFF '
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ELSE ' STATISTICS_NORECOMPUTE = ON '
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END + ',' +
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' ONLINE = OFF ' + ',' +
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CASE
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WHEN I.allow_row_locks = 1 THEN ' ALLOW_ROW_LOCKS = ON '
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ELSE ' ALLOW_ROW_LOCKS = OFF '
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END + ',' +
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CASE
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WHEN I.allow_page_locks = 1 THEN ' ALLOW_PAGE_LOCKS = ON '
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ELSE ' ALLOW_PAGE_LOCKS = OFF '
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END + ' ) ON [' +
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DS.name + ' ] ' + CHAR(13) + CHAR(10) + ' GO' [CreateIndexScript]
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FROM sys.indexes I
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JOIN sys.tables T
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ON T.object_id = I.object_id
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JOIN sys.sysindexes SI
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ON I.object_id = SI.id
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AND I.index_id = SI.indid
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JOIN (
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SELECT *
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FROM (
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SELECT IC2.object_id,
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IC2.index_id,
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STUFF(
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(
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SELECT ' , ' + C.name + CASE
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WHEN MAX(CONVERT(INT, IC1.is_descending_key))
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= 1 THEN
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' DESC '
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ELSE
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' ASC '
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END
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FROM sys.index_columns IC1
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JOIN sys.columns C
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ON C.object_id = IC1.object_id
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AND C.column_id = IC1.column_id
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AND IC1.is_included_column =
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0
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WHERE IC1.object_id = IC2.object_id
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AND IC1.index_id = IC2.index_id
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GROUP BY
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IC1.object_id,
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C.name,
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index_id
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ORDER BY
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MAX(IC1.key_ordinal)
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FOR XML PATH('')
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),
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1,
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2,
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''
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) KeyColumns
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FROM sys.index_columns IC2
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--WHERE IC2.Object_id = object_id('Person.Address') --Comment for all tables
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GROUP BY
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IC2.object_id,
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IC2.index_id
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) tmp3
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)tmp4
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ON I.object_id = tmp4.object_id
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AND I.Index_id = tmp4.index_id
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JOIN sys.stats ST
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ON ST.object_id = I.object_id
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AND ST.stats_id = I.index_id
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JOIN sys.data_spaces DS
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ON I.data_space_id = DS.data_space_id
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JOIN sys.filegroups FG
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ON I.data_space_id = FG.data_space_id
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LEFT JOIN (
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SELECT *
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FROM (
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SELECT IC2.object_id,
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IC2.index_id,
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STUFF(
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(
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SELECT ' , ' + C.name
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FROM sys.index_columns IC1
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JOIN sys.columns C
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ON C.object_id = IC1.object_id
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AND C.column_id = IC1.column_id
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AND IC1.is_included_column =
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1
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WHERE IC1.object_id = IC2.object_id
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AND IC1.index_id = IC2.index_id
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GROUP BY
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IC1.object_id,
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C.name,
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index_id
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FOR XML PATH('')
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),
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1,
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2,
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''
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) IncludedColumns
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FROM sys.index_columns IC2
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--WHERE IC2.Object_id = object_id('Person.Address') --Comment for all tables
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GROUP BY
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IC2.object_id,
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IC2.index_id
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) tmp1
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WHERE IncludedColumns IS NOT NULL
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) tmp2
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ON tmp2.object_id = I.object_id
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AND tmp2.index_id = I.index_id
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WHERE I.is_primary_key = 0
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AND I.is_unique_constraint = 0
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--AND T.name NOT LIKE 'mt_%'
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--AND I.name NOT LIKE 'mt_%'
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--AND I.Object_id = object_id('Person.Address') --Comment for all tables
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--AND I.name = 'IX_Address_PostalCode' --comment for all indexes
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@@ -0,0 +1,51 @@
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select schema_name(o.schema_id) as [schema_name] ,
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object_name(o.object_id) as [table_name] ,
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i.name as [index_name] ,
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i.type_desc as [index_type] ,
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dmv.page_count ,
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dmv.fragment_count ,
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round(dmv.avg_fragment_size_in_pages, 2, 2) [avg_fragment_size_in_pages] ,
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round(dmv.avg_fragmentation_in_percent, 2, 2) [avg_fragmentation_in_percent] ,
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case when dmv.avg_fragmentation_in_percent <= 5 then 'RELAX'
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when dmv.avg_fragmentation_in_percent <= 30 then 'REORGANIZE'
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when dmv.avg_fragmentation_in_percent > 30 then 'REBUILD'
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end as [action] ,
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stats_date(dmv.object_id, i.index_id) as stats_update_date ,
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case when isnull(ps.function_id, 1) = 1 then 'NO'
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else 'YES'
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end as partitioned ,
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coalesce(fg.name, fgp.name) as [file_group_name] ,
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p.partition_number as [partition_number] ,
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p.rows as [partition_rows] ,
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prv_left.value as [partition_lower_boundary_value] ,
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prv_right.value as [partition_upper_boundary_value] ,
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case when pf.boundary_value_on_right = 1 then 'RIGHT'
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when pf.boundary_value_on_right = 0 then 'LEFT'
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else 'NONE'
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end as [partition_range] ,
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pf.name as [partition_function] ,
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ds.name as [partition_scheme]
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from sys.partitions as p with ( readpast )
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inner join sys.indexes as i with ( readpast ) on i.object_id = p.object_id
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and i.index_id = p.index_id
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inner join sys.objects as o with ( readpast ) on o.object_id = i.object_id
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inner join sys.dm_db_index_physical_stats(db_id(), null, null, null,
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N'LIMITED') dmv on dmv.OBJECT_ID = i.object_id
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and dmv.index_id = i.index_id
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and dmv.partition_number = p.partition_number
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left join sys.data_spaces as ds with ( readpast ) on ds.data_space_id = i.data_space_id
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left join sys.partition_schemes as ps with ( readpast ) on ps.data_space_id = ds.data_space_id
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left join sys.partition_functions as pf with ( readpast ) on pf.function_id = ps.function_id
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left join sys.destination_data_spaces as dds with ( readpast ) on dds.partition_scheme_id = ps.data_space_id
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and dds.destination_id = p.partition_number
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left join sys.filegroups as fg with ( readpast ) on fg.data_space_id = i.data_space_id
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left join sys.filegroups as fgp with ( readpast ) on fgp.data_space_id = dds.data_space_id
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left join sys.partition_range_values as prv_left with ( readpast ) on ps.function_id = prv_left.function_id
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and prv_left.boundary_id = p.partition_number
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- 1
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left join sys.partition_range_values as prv_right with ( readpast ) on ps.function_id = prv_right.function_id
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and prv_right.boundary_id = p.partition_number
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where objectproperty(p.object_id, 'ISMSShipped') = 0
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order by [avg_fragmentation_in_percent] DESC,
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[table_name] ,
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[index_name]
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@@ -0,0 +1,20 @@
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-- listuje indeksy które założone są w bazie danych
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select
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i.name as IndexName,
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o.name as TableName,
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ic.key_ordinal as ColumnOrder,
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ic.is_included_column as IsIncluded,
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co.[name] as ColumnName
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from sys.indexes i
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join sys.objects o on i.object_id = o.object_id
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join sys.index_columns ic on ic.object_id = i.object_id
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and ic.index_id = i.index_id
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join sys.columns co on co.object_id = i.object_id
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and co.column_id = ic.column_id
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where i.[type] = 2
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and i.is_unique = 0
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and i.is_primary_key = 0
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and o.[type] = 'U'
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--and ic.is_included_column = 0
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order by o.[name], i.[name], ic.is_included_column, ic.key_ordinal
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;
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@@ -0,0 +1,32 @@
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-- Missing Index Script
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-- Original Author: Pinal Dave
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SELECT TOP 25
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dm_mid.database_id AS DatabaseID,
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dm_migs.avg_user_impact*(dm_migs.user_seeks+dm_migs.user_scans) Avg_Estimated_Impact,
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dm_migs.last_user_seek AS Last_User_Seek,
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OBJECT_NAME(dm_mid.OBJECT_ID,dm_mid.database_id) AS [TableName],
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'CREATE INDEX [IX_' + OBJECT_NAME(dm_mid.OBJECT_ID,dm_mid.database_id) + '_'
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+ REPLACE(REPLACE(REPLACE(ISNULL(dm_mid.equality_columns,''),', ','_'),'[',''),']','')
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+ CASE
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WHEN dm_mid.equality_columns IS NOT NULL
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AND dm_mid.inequality_columns IS NOT NULL THEN '_'
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ELSE ''
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END
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+ REPLACE(REPLACE(REPLACE(ISNULL(dm_mid.inequality_columns,''),', ','_'),'[',''),']','')
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+ ']'
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+ ' ON ' + dm_mid.statement
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+ ' (' + ISNULL (dm_mid.equality_columns,'')
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+ CASE WHEN dm_mid.equality_columns IS NOT NULL AND dm_mid.inequality_columns
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IS NOT NULL THEN ',' ELSE
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'' END
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+ ISNULL (dm_mid.inequality_columns, '')
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+ ')'
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+ ISNULL (' INCLUDE (' + dm_mid.included_columns + ')', '') AS Create_Statement
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FROM sys.dm_db_missing_index_groups dm_mig
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INNER JOIN sys.dm_db_missing_index_group_stats dm_migs
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ON dm_migs.group_handle = dm_mig.index_group_handle
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INNER JOIN sys.dm_db_missing_index_details dm_mid
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ON dm_mig.index_handle = dm_mid.index_handle
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WHERE dm_mid.database_ID = DB_ID()
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ORDER BY Avg_Estimated_Impact DESC
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GO
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@@ -0,0 +1,31 @@
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-- Script - Find Details for Statistics of Whole Database
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-- (c) Pinal Dave
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-- Download Script from - http://go.sqlauthority.com
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SELECT DISTINCT
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OBJECT_NAME(s.[object_id]) AS TableName,
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c.name AS ColumnName,
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s.name AS StatName,
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STATS_DATE(s.[object_id], s.stats_id) AS LastUpdated,
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DATEDIFF(d,STATS_DATE(s.[object_id], s.stats_id),getdate()) DaysOld,
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dsp.modification_counter,
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s.auto_created,
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s.user_created,
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s.no_recompute,
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s.[object_id],
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s.stats_id,
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sc.stats_column_id,
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sc.column_id
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FROM sys.stats s
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JOIN sys.stats_columns sc
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ON sc.[object_id] = s.[object_id] AND sc.stats_id = s.stats_id
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JOIN sys.columns c ON c.[object_id] = sc.[object_id] AND c.column_id = sc.column_id
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JOIN sys.partitions par ON par.[object_id] = s.[object_id]
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JOIN sys.objects obj ON par.[object_id] = obj.[object_id]
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CROSS APPLY sys.dm_db_stats_properties(sc.[object_id], s.stats_id) AS dsp
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WHERE OBJECTPROPERTY(s.OBJECT_ID,'IsUserTable') = 1
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AND (s.auto_created = 1 OR s.user_created = 1)
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ORDER BY DaysOld;
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EXEC sp_updatestats;
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GO
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@@ -0,0 +1,23 @@
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/*
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Wyświetla wszystkie Page Latch w bazie danych
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*/
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select q.text, r.status, r.wait_type, r.wait_resource, r.wait_time from
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sys.dm_exec_requests r
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inner join sys.dm_exec_sessions s
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on s.session_id=r.session_id
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cross apply sys.dm_exec_sql_text(r.sql_handle) q
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where s.is_user_process=1
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and r.status<>'running'
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and r.wait_type like 'PAGELATCH%'
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order by r.wait_resource
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-- sprawdzenie potem co jest w ym bloku
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dbcc page(40, 43, 14988552, 3) with tableresults
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-- jeśli to jest index to sprawdzamy który to jest
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select * from sys.indexes
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where object_id=399340487
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@@ -0,0 +1,6 @@
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-- pokazuje tylko sesje ktore wykonuja zapis do bazy danych
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SELECT * FROM
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sys.dm_exec_sessions
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WHERE is_user_process = 1
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AND writes > 0;
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Reference in New Issue
Block a user