三步10分钟搞定数据库版本的降迁（将后台数据库SQL2008R2降为SQL2005版本）

三步10分钟搞定数据库版本的降迁（将SQL2008R2降为SQL2005版本）

转载地址：http://blog.csdn.net/claro/article/details/6449824

前思后想仍觉得实战数据库版本的降迁一文中的方式不仅老土而且低效，故有了下文三步搞定数据库从MSSQL2008R2 高版本降迁至SQL2005低版本。整个过程如果思路清晰，数据量小，不过就是10分钟的事，效率提高很多。

我们这里仍然用上一篇的案例，即Discuz!NT 3.6.519 RC的后台数据库，这里需要利用一个免费的数据库对象同步工具，实际上整个操作过程中，这一步是最耗时低效，检查发现用OpenDBDiff和SQL-DBDiff可以高效解决这个问题。

首先，MSSQL2008R2有源数据库dnt2_db ，需要转到MSSQL2005目标数据库dnt2_dbNew中。

第一步在低版本数据库中新建目标库。

案例中SQL2005新建数据库T-SQL：

----/****** Object:  Database [dnt2_dbNew]     ******/
CREATE DATABASE [dnt2_dbNew] ON  PRIMARY 
( NAME = N'dnt2_db', FILENAME = N'D:/Program Files/bbs/bbs3.6/dnt2_db .mdf' , SIZE = 15552KB , MAXSIZE = UNLIMITED, FILEGROWTH = 1024KB )
 LOG ON 
( NAME = N'dnt2_db _log', FILENAME = N'D:/Program Files/bbs/bbs3.6/dnt2_db _log.ldf' , SIZE = 530112KB , MAXSIZE = 2048GB , FILEGROWTH = 10%)
GO
EXEC dbo.sp_dbcmptlevel @dbname=N'dnt2_dbNew', @new_cmptlevel=90
GO
IF (1 = FULLTEXTSERVICEPROPERTY('IsFullTextInstalled'))
begin
EXEC [dnt2_dbNew].[dbo].[sp_fulltext_database] @action = 'enable'
end
GO
ALTER DATABASE [dnt2_dbNew] SET ANSI_NULL_DEFAULT OFF
GO
ALTER DATABASE [dnt2_dbNew] SET ANSI_NULLS OFF
GO
ALTER DATABASE [dnt2_dbNew] SET ANSI_PADDING OFF
GO
ALTER DATABASE [dnt2_dbNew] SET ANSI_WARNINGS OFF
GO
ALTER DATABASE [dnt2_dbNew] SET ARITHABORT OFF
GO
ALTER DATABASE [dnt2_dbNew] SET AUTO_CLOSE OFF
GO
ALTER DATABASE [dnt2_dbNew] SET AUTO_CREATE_STATISTICS ON
GO
ALTER DATABASE [dnt2_dbNew] SET AUTO_SHRINK OFF
GO
ALTER DATABASE [dnt2_dbNew] SET AUTO_UPDATE_STATISTICS ON
GO
ALTER DATABASE [dnt2_dbNew] SET CURSOR_CLOSE_ON_COMMIT OFF
GO
ALTER DATABASE [dnt2_dbNew] SET CURSOR_DEFAULT  GLOBAL
GO
ALTER DATABASE [dnt2_dbNew] SET CONCAT_NULL_YIELDS_NULL OFF
GO
ALTER DATABASE [dnt2_dbNew] SET NUMERIC_ROUNDABORT OFF
GO
ALTER DATABASE [dnt2_dbNew] SET QUOTED_IDENTIFIER OFF
GO
ALTER DATABASE [dnt2_dbNew] SET RECURSIVE_TRIGGERS OFF
GO
ALTER DATABASE [dnt2_dbNew] SET  DISABLE_BROKER
GO
ALTER DATABASE [dnt2_dbNew] SET AUTO_UPDATE_STATISTICS_ASYNC OFF
GO
ALTER DATABASE [dnt2_dbNew] SET DATE_CORRELATION_OPTIMIZATION OFF
GO
ALTER DATABASE [dnt2_dbNew] SET TRUSTWORTHY OFF
GO
ALTER DATABASE [dnt2_dbNew] SET ALLOW_SNAPSHOT_ISOLATION OFF
GO
ALTER DATABASE [dnt2_dbNew] SET PARAMETERIZATION SIMPLE
GO
ALTER DATABASE [dnt2_dbNew] SET READ_COMMITTED_SNAPSHOT OFF
GO
ALTER DATABASE [dnt2_dbNew] SET  READ_WRITE
GO
ALTER DATABASE [dnt2_dbNew] SET RECOVERY FULL
GO
ALTER DATABASE [dnt2_dbNew] SET  MULTI_USER
GO
ALTER DATABASE [dnt2_dbNew] SET PAGE_VERIFY CHECKSUM
GO
ALTER DATABASE [dnt2_dbNew] SET DB_CHAINING OFF
GO