标签：style blog http color 使用 io strong 文件
一 .SQL SERVER 表分区介绍：
SQL Server 引入的表分区技术，让用户能够把数据分散存放到不同的物理磁盘中，提高这些磁盘的并行处理性能以优化查询性能……
二 .SQL SERVER 数据库表分区由三个步骤来完成:
1.创建分区函数
2.创建分区架构
3.对表进行分区
基于缓存更新机制，我使用时间来进行分区，这里大家根据业务的要求使用合适的字段来作为分区
创建数据库分区文件数量，这里存储一年的数据分成十二个分区，需要现在D盘建立好Data 的文件夹 里面包含Primary 文件夹和 FG1 FG2 FG3 FG4............
IF EXISTS (SELECT name FROM sys.databases WHERE name = N‘AirAvCache‘) DROP DATABASE [AirAvCache] GO CREATE DATABASE [AirAvCache] ON PRIMARY (NAME=‘Data Partition DB Primary FG‘, FILENAME= ‘D:\Data\Primary\AirAvCache Primary FG.mdf‘, SIZE=5, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG1] (NAME = ‘AirAvCache FG1‘, FILENAME = ‘D:\Data\FG1\AirAvCache FG1.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG2] (NAME = ‘AirAvCache FG2‘, FILENAME = ‘D:\Data\FG2\AirAvCache FG2.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG3] (NAME = ‘AirAvCache FG3‘, FILENAME = ‘D:\Data\FG3\AirAvCache FG3.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG4] (NAME = ‘AirAvCache FG4‘, FILENAME = ‘D:\Data\FG4\AirAvCache FG4.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG5] (NAME = ‘AirAvCache FG5‘, FILENAME = ‘D:\Data\FG5\AirAvCache FG5.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG6] (NAME = ‘AirAvCache FG6‘, FILENAME = ‘D:\Data\FG6\AirAvCache FG6.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG7] (NAME = ‘AirAvCache FG7‘, FILENAME = ‘D:\Data\FG7\AirAvCache FG7.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG8] (NAME = ‘AirAvCache FG8‘, FILENAME = ‘D:\Data\FG8\AirAvCache FG8.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG9] (NAME = ‘AirAvCache FG9‘, FILENAME = ‘D:\Data\FG9\AirAvCache FG9.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG10] (NAME = ‘AirAvCache FG10‘, FILENAME = ‘D:\Data\FG10\AirAvCache FG10.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG11] (NAME = ‘AirAvCache FG11‘, FILENAME = ‘D:\Data\FG11\AirAvCache FG11.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 ), FILEGROUP [AirAvCache FG12] (NAME = ‘AirAvCache FG12‘, FILENAME = ‘D:\Data\FG12\AirAvCache FG12.ndf‘, SIZE = 5MB, MAXSIZE=500, FILEGROWTH=1 )
创建好后如图：
打开FG1 文件夹 看到多了AirAvCacheFG1.ndf 文件
创建分区函数
USE AirAvCache GO -- 创建函数 CREATE PARTITION FUNCTION [AirAvCache Partition Range](DATETIME) AS RANGE LEFT FOR VALUES (‘2010-09-01‘,‘2010-10-01‘,‘2010-11-01‘, ‘2010-12-01‘,‘2011-01-01‘,‘2011-02-01‘,‘2011-03-01‘,‘2011-04-01‘, ‘2011-05-01‘,‘2011-06-01‘,‘2010-07-01‘);
创建分区架构
CREATE PARTITION SCHEME [AirAvCache Partition Scheme] AS PARTITION [AirAvCache Partition Range] TO ([AirAvCache FG1], [AirAvCache FG2], [AirAvCache FG3],[AirAvCache FG4],[AirAvCache FG5],[AirAvCache FG6],[AirAvCache FG7],[AirAvCache FG8], [AirAvCache FG9],[AirAvCache FG10],[AirAvCache FG11],[AirAvCache FG12]);
创建一个使用AirAvCache Partitiion Scheme 架构的表
CREATE TABLE [dbo].[AvCache]( [CityPair] [varchar](6) NOT NULL, [FlightNo] [varchar](10) NULL, [FlightDate] [datetime] NOT NULL, [CacheTime] [datetime] NOT NULL DEFAULT (getdate()), [AVNote] [varchar](300) NULL ) ON [AirAvCache Partition Scheme] (FlightDate); --注意这里使用[AirAvCache Partition Scheme]架构，根据FlightDate 分区
查询分区情况
-- 查看使用情况 SELECT *, $PARTITION.[AirAvCache Partition Range](FlightDate) FROM dbo.AVCache
可以看到9 月和 10 月已经分开了。
标签：style blog http color 使用 io strong 文件
原文地址：http://www.cnblogs.com/mingxuantongxue/p/3907629.html
