SQL开发知识：SQL Server实现自动循环归档分区数据脚本

概述

大家应该都知道在很多业务场景下我们需要对一些记录量比较大的表进行分区，同时为了保证性能需要将一些旧的数据进行归档。在分区表很多的情况下如果每一次归档都需要人工干预的话工程量是比较大的而且也容易发生纰漏。接下来分享一个自己编写的自动归档分区数据的脚本，原理是分区表和归档表使用相同的分区方案，循环利用当前的文件组，话不多说了，来一起看看详细的介绍吧。

一、创建测试数据

—-01创建文件组
USE [master]
GO
ALTER DATABASE [chenmh] ADD FILEGROUP [Group1]
GO
ALTER DATABASE [chenmh] ADD FILEGROUP [Group2]
GO
ALTER DATABASE [chenmh] ADD FILEGROUP [Group3]
GO
ALTER DATABASE [chenmh] ADD FILEGROUP [Group4]
GO
USE [master]
GO
ALTER DATABASE [chenmh] ADD FILE ( NAME = N’datafile1′, FILENAME = N’C:Program FilesMicrosoft SQL ServerMSSQL12.MSSQLSERVERMSSQLDATAdatafile1.ndf’ , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group1]
GO
ALTER DATABASE [chenmh] ADD FILE ( NAME = N’datafile2′, FILENAME = N’C:Program FilesMicrosoft SQL ServerMSSQL12.MSSQLSERVERMSSQLDATAdatafile2.ndf’ , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group2]
GO
ALTER DATABASE [chenmh] ADD FILE ( NAME = N’datafile3′, FILENAME = N’C:Program FilesMicrosoft SQL ServerMSSQL12.MSSQLSERVERMSSQLDATAdatafile3.ndf’ , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group3]
GO
ALTER DATABASE [chenmh] ADD FILE ( NAME = N’datafile4′, FILENAME = N’C:Program FilesMicrosoft SQL ServerMSSQL12.MSSQLSERVERMSSQLDATAdatafile4.ndf’ , SIZE = 8192KB , FILEGROWTH = 65536KB ) TO FILEGROUP [Group4]
GO

—-02创建分区函数
USE [chenmh]
GO
CREATE PARTITION FUNCTION [Pt_Range](BIGINT) AS RANGE RIGHT FOR VALUES (1000000, 2000000, 3000000)
GO

—-03创建分区方案,分区方案对应的文件组数是分区函数指定的数量+1
CREATE PARTITION SCHEME Ps_Range
AS PARTITION Pt_Range
TO (Group1, Group2, Group3, Group4);

—04创建表,指定的分区列的数据类型一定要和分区函数指定的列类型一致。
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)

—–创建归档分区表
CREATE TABLE [dbo].[NewsArchived](
[id] [bigint] NOT NULL,
[status] [int] NULL,
CONSTRAINT [PK_NewsArchived] 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)

—-插入测试数据
DECLARE @id INT
SET @id=1
WHILE @id<5001000
BEGIN
INSERT INTO News VALUES(@id,@id%2)
SET @id=@id+1

END