使用SQL Server 2008提供的表分区向导

 

 表分区(Partition Table)是自从SQL Server 2005就开始提供的功能,解决的问题是大型表的存储和查询。

 

  我们之前大致的语法是这样的

-- ========================= 
-- 演示:陈希章 
-- 如何创建分区函数 
-- 如何创建分区架构 
-- 如何创建分区表 
--========================= 
alter database adventureWorks add filegroup [fg1] 
go 
alter database adventureWorks add filegroup [fg2] 
go 
alter database adventureWorks add filegroup [fg3] 
go 
alter database adventureWorks 
add file 
(name='fg1', 
filename='c:\fg1.ndf', 
size=5mb) 
to filegroup [fg1] 
go 
alter database adventureWorks 
add file 
(name='fg2', 
filename='d:\fg2.ndf', 
size=5mb) 
to filegroup [fg2] 
go 
alter database adventureWorks 
add file 
(name='fg3', 
filename='e:\fg3.ndf', 
size=5mb) 
to filegroup [fg3] 
go 
use adventureWorks 
go 
Create partition function emailPF(nvarchar(50)) as range right for values ('G','N')--创建分区函数 
go 
Create partition scheme emailPS as partition emailPF to (fg1,fg2,fg3)--创建分区方案 
go 
Create table customermail (custid int, email nvarchar(50)) on emailPS(email)--创建分区表 
Go 

 

  为了简化操作,SQL Server 2008中为表分区提供了相关的操作

 

 

 

 

 

 

 

 

最后生成的脚本是这样的

USE [demo]
GO
BEGIN TRANSACTION
CREATE PARTITION FUNCTION [ordersfunction](date) AS RANGE LEFT FOR VALUES (N'2008-01-01', N'2008-02-01', N'2008-03-01') 
CREATE PARTITION SCHEME [ordersscheme] AS PARTITION [ordersfunction] TO ([PRIMARY], [PRIMARY], [PRIMARY], [PRIMARY]) 
CREATE CLUSTERED INDEX [ClusteredIndex_on_ordersscheme_633765890752500000] ON [dbo].[Orders] 
(
    [OrderDate]
)WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF) ON [ordersscheme]([OrderDate]) 
DROP INDEX [ClusteredIndex_on_ordersscheme_633765890752500000] ON [dbo].[Orders] WITH ( ONLINE = OFF ) 
COMMIT TRANSACTION 

 

posted @ 2011-08-22 10:27  斌哥  阅读(338)  评论(0编辑  收藏  举报