Introduktion
Ofta finns det ett behov av att kontrollera tillväxten av alla tabeller och filer i alla databaser.
I den här artikeln kommer vi att utforska ett exempel på hur man automatiserar datainsamling om tillväxten av SQL Server-databastabeller och filer.
Lösning
- Skapa en vy om storleken på alla tabeller för varje databas
USE [DATABASE_NAME] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE view [inf].[vTableSize] as with pagesizeKB as ( SELECT low / 1024 as PageSizeKB FROM master.dbo.spt_values WHERE number = 1 AND type = 'E' ) ,f_size as ( select p.[object_id], sum([total_pages]) as TotalPageSize, sum([used_pages]) as UsedPageSize, sum([data_pages]) as DataPageSize from sys.partitions p join sys.allocation_units a on p.partition_id = a.container_id left join sys.internal_tables it on p.object_id = it.object_id WHERE OBJECTPROPERTY(p.[object_id], N'IsUserTable') = 1 group by p.[object_id] ) ,tbl as ( SELECT t.[schema_id], t.[object_id], i1.rowcnt as CountRows, (COALESCE(SUM(i1.reserved), 0) + COALESCE(SUM(i2.reserved), 0)) * (select top(1) PageSizeKB from pagesizeKB) as ReservedKB, (COALESCE(SUM(i1.dpages), 0) + COALESCE(SUM(i2.used), 0)) * (select top(1) PageSizeKB from pagesizeKB) as DataKB, ((COALESCE(SUM(i1.used), 0) + COALESCE(SUM(i2.used), 0)) - (COALESCE(SUM(i1.dpages), 0) + COALESCE(SUM(i2.used), 0))) * (select top(1) PageSizeKB from pagesizeKB) as IndexSizeKB, ((COALESCE(SUM(i1.reserved), 0) + COALESCE(SUM(i2.reserved), 0)) - (COALESCE(SUM(i1.used), 0) + COALESCE(SUM(i2.used), 0))) * (select top(1) PageSizeKB from pagesizeKB) as UnusedKB FROM sys.tables as t LEFT OUTER JOIN sysindexes as i1 ON i1.id = t.[object_id] AND i1.indid < 2 LEFT OUTER JOIN sysindexes as i2 ON i2.id = t.[object_id] AND i2.indid = 255 WHERE OBJECTPROPERTY(t.[object_id], N'IsUserTable') = 1 OR (OBJECTPROPERTY(t.[object_id], N'IsView') = 1 AND OBJECTPROPERTY(t.[object_id], N'IsIndexed') = 1) GROUP BY t.[schema_id], t.[object_id], i1.rowcnt ) SELECT @@Servername AS Server, DB_NAME() AS DBName, SCHEMA_NAME(t.[schema_id]) as SchemaName, OBJECT_NAME(t.[object_id]) as TableName, t.CountRows, t.ReservedKB, t.DataKB, t.IndexSizeKB, t.UnusedKB, f.TotalPageSize*(select top(1) PageSizeKB from pagesizeKB) as TotalPageSizeKB, f.UsedPageSize*(select top(1) PageSizeKB from pagesizeKB) as UsedPageSizeKB, f.DataPageSize*(select top(1) PageSizeKB from pagesizeKB) as DataPageSizeKB FROM f_size as f inner join tbl as t on t.[object_id]=f.[object_id] GO
- Skapa en specifik databas och bestäm en tabell för att lagra information om tillväxten av alla databastabeller:
USE [DATABASE_NAME] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO SET ANSI_PADDING ON GO CREATE TABLE [srv].[TableStatistics]( [Row_GUID] [uniqueidentifier] NOT NULL CONSTRAINT [DF_TableStatistics_Row_GUID] DEFAULT (newid()), [ServerName] [nvarchar](255) NOT NULL, [DBName] [nvarchar](255) NOT NULL, [SchemaName] [nvarchar](255) NOT NULL, [TableName] [nvarchar](255) NOT NULL, [CountRows] [bigint] NOT NULL, [DataKB] [int] NOT NULL, [IndexSizeKB] [int] NOT NULL, [UnusedKB] [int] NOT NULL, [ReservedKB] [int] NOT NULL, [InsertUTCDate] [datetime] NOT NULL CONSTRAINT [DF_TableStatistics_InsertUTCDate] DEFAULT (getutcdate()), [Date] AS (CONVERT([date],[InsertUTCDate])) PERSISTED, [CountRowsBack] [bigint] NULL, [CountRowsNext] [bigint] NULL, [DataKBBack] [int] NULL, [DataKBNext] [int] NULL, [IndexSizeKBBack] [int] NULL, [IndexSizeKBNext] [int] NULL, [UnusedKBBack] [int] NULL, [UnusedKBNext] [int] NULL, [ReservedKBBack] [int] NULL, [ReservedKBNext] [int] NULL, [AvgCountRows] AS ((([CountRowsBack]+[CountRows])+[CountRowsNext])/(3)) PERSISTED, [AvgDataKB] AS ((([DataKBBack]+[DataKB])+[DataKBNext])/(3)) PERSISTED, [AvgIndexSizeKB] AS ((([IndexSizeKBBack]+[IndexSizeKB])+[IndexSizeKBNext])/(3)) PERSISTED, [AvgUnusedKB] AS ((([UnusedKBBack]+[UnusedKB])+[UnusedKBNext])/(3)) PERSISTED, [AvgReservedKB] AS ((([ReservedKBBack]+[ReservedKB])+[ReservedKBNext])/(3)) PERSISTED, [DiffCountRows] AS (([CountRowsNext]+[CountRowsBack])-(2)*[CountRows]) PERSISTED, [DiffDataKB] AS (([DataKBNext]+[DataKBBack])-(2)*[DataKB]) PERSISTED, [DiffIndexSizeKB] AS (([IndexSizeKBNext]+[IndexSizeKBBack])-(2)*[IndexSizeKB]) PERSISTED, [DiffUnusedKB] AS (([UnusedKBNext]+[UnusedKBBack])-(2)*[UnusedKB]) PERSISTED, [DiffReservedKB] AS (([ReservedKBNext]+[ReservedKBBack])-(2)*[ReservedKB]) PERSISTED, [TotalPageSizeKB] [int] NULL, [TotalPageSizeKBBack] [int] NULL, [TotalPageSizeKBNext] [int] NULL, [UsedPageSizeKB] [int] NULL, [UsedPageSizeKBBack] [int] NULL, [UsedPageSizeKBNext] [int] NULL, [DataPageSizeKB] [int] NULL, [DataPageSizeKBBack] [int] NULL, [DataPageSizeKBNext] [int] NULL, [AvgDataPageSizeKB] AS ((([DataPageSizeKBBack]+[DataPageSizeKB])+[DataPageSizeKBNext])/(3)) PERSISTED, [AvgUsedPageSizeKB] AS ((([UsedPageSizeKBBack]+[UsedPageSizeKB])+[UsedPageSizeKBNext])/(3)) PERSISTED, [AvgTotalPageSizeKB] AS ((([TotalPageSizeKBBack]+[TotalPageSizeKB])+[TotalPageSizeKBNext])/(3)) PERSISTED, [DiffDataPageSizeKB] AS (([DataPageSizeKBNext]+[DataPageSizeKBBack])-(2)*[DataPageSizeKB]) PERSISTED,--shows as the casting is changed [DiffUsedPageSizeKB] AS (([UsedPageSizeKBNext]+[UsedPageSizeKBBack])-(2)*[UsedPageSizeKB]) PERSISTED,--shows as the casting is changed [DiffTotalPageSizeKB] AS (([TotalPageSizeKBNext]+[TotalPageSizeKBBack])-(2)*[TotalPageSizeKB]) PERSISTED,--shows as the casting is changed CONSTRAINT [PK_TableStatistics] PRIMARY KEY CLUSTERED ( [Row_GUID] 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 SET ANSI_PADDING ON GO
TotalPageSizeKB anger tabellstorleken.
Summan av TotalPageSizeKB av alla databastabeller + storleken på systemtabeller =storleken på databasdata.
- Fastställ proceduren för att samla in informationen:
USE [DATABASE_NAME] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [srv].[InsertTableStatistics] AS BEGIN SET NOCOUNT ON; SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; declare @dt date=CAST(GetUTCDate() as date); declare @dbs nvarchar(255); declare @sql nvarchar(max); select [name] into #dbs from sys.databases; while(exists(select top(1) 1 from #dbs)) begin select top(1) @dbs=[name] from #dbs; set @sql= N'INSERT INTO [srv].[TableStatistics] ([ServerName] ,[DBName] ,[SchemaName] ,[TableName] ,[CountRows] ,[DataKB] ,[IndexSizeKB] ,[UnusedKB] ,[ReservedKB] ,[TotalPageSizeKB] ,[UsedPageSizeKB] ,[DataPageSizeKB]) SELECT [Server] ,[DBName] ,[SchemaName] ,[TableName] ,[CountRows] ,[DataKB] ,[IndexSizeKB] ,[UnusedKB] ,[ReservedKB] ,[TotalPageSizeKB] ,[UsedPageSizeKB] ,[DataPageSizeKB] FROM ['[email protected]+'].[inf].[vTableSize];'; exec sp_executesql @sql; delete from #dbs where [name][email protected]; end drop table #dbs; declare @dt_back date=CAST(DateAdd(day,-1,@dt) as date); ;with tbl1 as ( select [Date], [CountRows], [DataKB], [IndexSizeKB], [UnusedKB], [ReservedKB], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKB], [UsedPageSizeKB], [DataPageSizeKB] from [srv].[TableStatistics] where [Date][email protected]_back ) , tbl2 as ( select [Date], [CountRows], [CountRowsBack], [DataKBBack], [IndexSizeKBBack], [UnusedKBBack], [ReservedKBBack], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKBBack], [UsedPageSizeKBBack], [DataPageSizeKBBack] from [srv].[TableStatistics] where [Date][email protected] ) update t2 set t2.[CountRowsBack] =t1.[CountRows], t2.[DataKBBack] =t1.[DataKB], t2.[IndexSizeKBBack] =t1.[IndexSizeKB], t2.[UnusedKBBack] =t1.[UnusedKB], t2.[ReservedKBBack] =t1.[ReservedKB], t2.[TotalPageSizeKBBack]=t1.[TotalPageSizeKB], t2.[UsedPageSizeKBBack] =t1.[UsedPageSizeKB], t2.[DataPageSizeKBBack] =t1.[DataPageSizeKB] from tbl1 as t1 inner join tbl2 as t2 on t1.[Date]=DateAdd(day,-1,t2.[Date]) and t1.[ServerName]=t2.[ServerName] and t1.[DBName]=t2.[DBName] and t1.[SchemaName]=t2.[SchemaName] and t1.[TableName]=t2.[TableName]; ;with tbl1 as ( select [Date], [CountRows], [CountRowsNext], [DataKBNext], [IndexSizeKBNext], [UnusedKBNext], [ReservedKBNext], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKBNext], [UsedPageSizeKBNext], [DataPageSizeKBNext] from [srv].[TableStatistics] where [Date][email protected]_back ) , tbl2 as ( select [Date], [CountRows], [DataKB], [IndexSizeKB], [UnusedKB], [ReservedKB], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKB], [UsedPageSizeKB], [DataPageSizeKB] from [srv].[TableStatistics] where [Date][email protected] ) update t1 set t1.[CountRowsNext] =t2.[CountRows], t1.[DataKBNext] =t2.[DataKB], t1.[IndexSizeKBNext] =t2.[IndexSizeKB], t1.[UnusedKBNext] =t2.[UnusedKB], t1.[ReservedKBNext] =t2.[ReservedKB], t1.[TotalPageSizeKBNext]=t2.[TotalPageSizeKB], t1.[UsedPageSizeKBNext] =t2.[UsedPageSizeKB], t1.[DataPageSizeKBNext] =t2.[DataPageSizeKB] from tbl1 as t1 inner join tbl2 as t2 on t1.[Date]=DateAdd(day,-1,t2.[Date]) and t1.[ServerName]=t2.[ServerName] and t1.[DBName]=t2.[DBName] and t1.[SchemaName]=t2.[SchemaName] and t1.[TableName]=t2.[TableName]; END GO
Denna lösning kan modifieras för att samla in data om tabellstorlekarna i alla databaser från alla nödvändiga instanser av MS SQL Server.
- Definiera vyn med den insamlade informationen:
USE [DATABASE_NAME] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO create view [srv].[vTableStatisticsShort] as with d as (select DateAdd(day,-1,max([Date])) as [Date] from [srv].[TableStatistics]) SELECT t.[ServerName] ,t.[DBName] ,t.[SchemaName] ,t.[TableName] ,t.[CountRows] ,t.[DataKB] ,t.[IndexSizeKB] ,t.[UnusedKB] ,t.[ReservedKB] ,t.[InsertUTCDate] ,t.[Date] ,t.[CountRowsBack] ,t.[CountRowsNext] ,t.[DataKBBack] ,t.[DataKBNext] ,t.[IndexSizeKBBack] ,t.[IndexSizeKBNext] ,t.[UnusedKBBack] ,t.[UnusedKBNext] ,t.[ReservedKBBack] ,t.[ReservedKBNext] ,t.[AvgCountRows] ,t.[AvgDataKB] ,t.[AvgIndexSizeKB] ,t.[AvgUnusedKB] ,t.[AvgReservedKB] ,t.[DiffCountRows] ,t.[DiffDataKB] ,t.[DiffIndexSizeKB] ,t.[DiffUnusedKB] ,t.[DiffReservedKB] ,t.[TotalPageSizeKB] ,t.[TotalPageSizeKBBack] ,t.[TotalPageSizeKBNext] ,t.[UsedPageSizeKB] ,t.[UsedPageSizeKBBack] ,t.[UsedPageSizeKBNext] ,t.[DataPageSizeKB] ,t.[DataPageSizeKBBack] ,t.[DataPageSizeKBNext] ,t.[AvgDataPageSizeKB] ,t.[AvgUsedPageSizeKB] ,t.[AvgTotalPageSizeKB] ,t.[DiffDataPageSizeKB] ,t.[DiffUsedPageSizeKB] ,t.[DiffTotalPageSizeKB] FROM d inner join [SRV].[srv].[TableStatistics] as t on d.[Date]=t.[Date] where t.[CountRowsBack] is not null and t.[CountRowsNext] is not null GO
Här skulle jag vilja uppmärksamma Diff. Om den är högre än 0 betyder det att tabellen växer snabbare varje dag.
Insamlingen är tänkt att göras en gång var 24:e timme.
På samma sätt kan vi automatisera insamlingen av filtillväxten för alla databaser med hjälp av följande vy:
USE [DATABASE_NAME] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO select t2.[DB_Name] as [DBName] ,t1.FileId ,t1.NumberReads ,t1.BytesRead ,t1.IoStallReadMS ,t1.NumberWrites ,t1.BytesWritten ,t1.IoStallWriteMS ,t1.IoStallMS ,t1.BytesOnDisk ,t1.[TimeStamp] ,t1.FileHandle ,t2.[Type_desc] ,t2.[FileName] ,t2.[Drive] ,t2.[Physical_Name] ,t2.[Ext] ,t2.[CountPage] ,t2.[SizeMb] ,t2.[SizeGb] ,t2.[Growth] ,t2.[GrowthMb] ,t2.[GrowthGb] ,t2.[GrowthPercent] ,t2.[is_percent_growth] ,t2.[database_id] ,t2.[State] ,t2.[StateDesc] ,t2.[IsMediaReadOnly] ,t2.[IsReadOnly] ,t2.[IsSpace] ,t2.[IsNameReserved] ,t2.[CreateLsn] ,t2.[DropLsn] ,t2.[ReadOnlyLsn] ,t2.[ReadWriteLsn] ,t2.[DifferentialBaseLsn] ,t2.[DifferentialBaseGuid] ,t2.[DifferentialBaseTime] ,t2.[RedoStartLsn] ,t2.[RedoStartForkGuid] ,t2.[RedoTargetLsn] ,t2.[RedoTargetForkGuid] ,t2.[BackupLsn] from fn_virtualfilestats(NULL, NULL) as t1 inner join [inf].[ServerDBFileInfo] as t2 on t1.[DbId]=t2.[database_id] and t1.[FileId]=t2.[File_Id] GO
Resultat
I den här artikeln utforskade vi exemplet på att automatisera datainsamling om storleken och tillväxten av alla SQL Server-tabeller och filer i alla databaser. Det ger oss fullständig kontroll över att ändra storleken på både databasfilerna och dess tabeller, samt vidta åtgärder i rätt tid för att minska tabellen eller filen, utöka datalagringsenheten eller dela upp information i flera datalagringsenheter.