📜 ⬆️ ⬇️

Automation to collect data on the growth of tables and files of all MS SQL Server databases

Foreword


Often there is a need to control the growth of all tables and files of all databases.

This article will look at an example of how you can automate the collection of data on the growth of tables and database files.

Decision


1) Let's create an idea of ​​the size of all tables for each database (database) (for example, you can do this):

Code
USE [__] 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 


2) Create a special database and define a table in it for storing information on the growth of all tables of all databases:
')
Code
 USE [__] 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,--     [DiffUsedPageSizeKB] AS (([UsedPageSizeKBNext]+[UsedPageSizeKBBack])-(2)*[UsedPageSizeKB]) PERSISTED,--     [DiffTotalPageSizeKB] AS (([TotalPageSizeKBNext]+[TotalPageSizeKBBack])-(2)*[TotalPageSizeKB]) PERSISTED,--     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 is responsible for the size of the table itself.

TotalPageSizeKB sum of all database tables + size of system tables = size of database data.

3) Define the procedure for collecting information:
Code
 USE [__] 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 ['+@dbs+'].[inf].[vTableSize];'; exec sp_executesql @sql; delete from #dbs where [name]=@dbs; 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]=@dt_back ) , tbl2 as ( select [Date], [CountRows], [CountRowsBack], [DataKBBack], [IndexSizeKBBack], [UnusedKBBack], [ReservedKBBack], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKBBack], [UsedPageSizeKBBack], [DataPageSizeKBBack] from [srv].[TableStatistics] where [Date]=@dt ) 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]=@dt_back ) , tbl2 as ( select [Date], [CountRows], [DataKB], [IndexSizeKB], [UnusedKB], [ReservedKB], [ServerName], [DBName], [SchemaName], [TableName], [TotalPageSizeKB], [UsedPageSizeKB], [DataPageSizeKB] from [srv].[TableStatistics] where [Date]=@dt ) 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 


This solution can be modified in order to collect data from all the necessary instances of MS SQL Server by the size of all database tables.

4) We define the presentation of the information collected:

Code
 USE [__] 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 


It is worth paying attention to Diff. If it is greater than 0, then this means that the table is growing faster every day.
It is assumed that the collection will be made 1 time per 24 hours.
Similarly, you can automate and collect the growth of files of all databases using the following view:
Code
 USE [__] 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 


Result


This article has reviewed an example of automating the collection of information on the size and growth of all tables and files of all databases. This gives full control over the resizing of both the database files and its tables, as well as taking timely measures to reduce the table or file or to increase the storage medium (or splitting information into several media).

Sources:


MSDN

Source: https://habr.com/ru/post/338536/


All Articles