sqlserver 表分割槽-欄位id分割槽案例
1，建立檔案組
USE [master] GO ALTER DATABASE [test] ADD FILEGROUP [Group1] GO ALTER DATABASE [test] ADD FILEGROUP [Group2] GO ALTER DATABASE [test] ADD FILEGROUP [Group3] GO ALTER DATABASE [test] ADD FILEGROUP [Group4] GO
USE [master] GO ALTER DATABASE [test] ADD FILE ( NAME = N'datafile1', FILENAME = N'D:\SQLData\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\test\datafile1.ndf' , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group1] GO ALTER DATABASE [test] ADD FILE ( NAME = N'datafile2', FILENAME = N'D:\SQLData\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\test\datafile2.ndf' , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group2] GO ALTER DATABASE [test] ADD FILE ( NAME = N'datafile3', FILENAME = N'D:\SQLData\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\test\datafile3.ndf' , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group3] GO ALTER DATABASE [test] ADD FILE ( NAME = N'datafile4', FILENAME = N'D:\SQLData\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\test\datafile4.ndf' , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group4] GO
2,建立分割槽函式
USE [test] GO CREATE PARTITION FUNCTION [Pt_Range](BIGINT) AS RANGE RIGHT FOR VALUES (1000000, 2000000, 3000000) GO
03,建立分割槽方案,分割槽方案對應的檔案組數是分割槽函式指定的數量+1 CREATE PARTITION SCHEME Ps_Range AS PARTITION Pt_Range TO (Group1, Group2, Group3, Group4);
04,建立表,指定的分割槽列的資料型別一定要和分割槽函式指定的列型別一致。 CREATE TABLE [dbo].[News]( [id] [bigint] NOT NULL, [status] [int] NULL, CONSTRAINT [PK_News] PRIMARY KEY CLUSTERED ( [id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [Ps_Range](id) ) ON [Ps_Range](id)
5，插入測試資料 DECLARE @id INT SET @id=1 WHILE @id<5001000 BEGIN INSERT INTO News VALUES(@id,@id%2) SET @[email protected]+1
END
6,查看錶的分割槽 SELECT * FROM sys.partitions WHERE [object_id]=OBJECT_ID('news')
SELECT index_id,partition_number,avg_fragment_size_in_pages,page_count,alloc_unit_type_desc FROM sys.Dm_db_index_physical_stats(Db_id(),Object_id('news'),NULL,NULL,NULL)