我们不存储数据库模式，而是存储对数据库的更改。我们所做的是存储模式更改，以便为数据库的任何版本构建更改脚本，并将其应用于客户的数据库。我写了一个数据库实用程序，它与我们的主应用程序一起分发，它可以读取脚本，并知道需要应用哪些更新。它还具有足够的智能，可以根据需要刷新视图和存储过程。

如果您有一个小型数据库，并且希望对整个数据库进行版本化，那么这个批处理脚本可能会有所帮助。它将MSSQL数据库MDF文件分离、压缩并检入Subversion。

如果您主要想要版本化您的模式，并且只有少量的引用数据，您可以使用SubSonic Migrations来处理它。这样做的好处是您可以轻松地向上或向下迁移到任何特定的版本。

Red Gate的SQL Compare产品不仅允许您进行对象级比较，并从中生成更改脚本，还允许您将数据库对象导出到按对象类型组织的文件夹层次结构中，其中一个[objectname]。这些目录中每个对象的SQL创建脚本。对象类型层次结构是这样的:

\功能 \安全 \安全\角色 \ \安全模式 \安全\用户 \存储过程 \表

如果在进行更改后将脚本转储到相同的根目录，则可以使用此目录更新SVN repo，并单独保存每个对象的运行历史记录。

为了更快地将数据转储到源代码控制系统，您可以使用sysobjects中的版本信息来查看自上次以来哪些对象发生了更改。

设置:在每个数据库中增量地创建一个表，以保存上次检查时的版本信息(第一次运行时为空)。如果要重新扫描整个数据结构，请清除此表。

IF ISNULL(OBJECT_ID('last_run_sysversions'), 0) <> 0 DROP TABLE last_run_sysversions
CREATE TABLE last_run_sysversions (
    name varchar(128), 
    id int, base_schema_ver int,
    schema_ver int,
    type char(2)
)

正常运行模式:您可以从此sql中获取结果，并为您感兴趣的sql脚本生成sql脚本，并将它们放入您选择的源代码控制中。

IF ISNULL(OBJECT_ID('tempdb.dbo.#tmp'), 0) <> 0 DROP TABLE #tmp
CREATE TABLE #tmp (
    name varchar(128), 
    id int, base_schema_ver int,
    schema_ver int,
    type char(2)
)

SET NOCOUNT ON

-- Insert the values from the end of the last run into #tmp
INSERT #tmp (name, id, base_schema_ver, schema_ver, type) 
SELECT name, id, base_schema_ver, schema_ver, type FROM last_run_sysversions

DELETE last_run_sysversions
INSERT last_run_sysversions (name, id, base_schema_ver, schema_ver, type)
SELECT name, id, base_schema_ver, schema_ver, type FROM sysobjects

-- This next bit lists all differences to scripts.
SET NOCOUNT OFF

--Renamed.
SELECT 'renamed' AS ChangeType, t.name, o.name AS extra_info, 1 AS Priority
FROM sysobjects o INNER JOIN #tmp t ON o.id = t.id
WHERE o.name <> t.name /*COLLATE*/
AND o.type IN ('TR', 'P' ,'U' ,'V')
UNION 

--Changed (using alter)
SELECT 'changed' AS ChangeType, o.name /*COLLATE*/, 
       'altered' AS extra_info, 2 AS Priority
FROM sysobjects o INNER JOIN #tmp t ON o.id = t.id 
WHERE (
   o.base_schema_ver <> t.base_schema_ver
OR o.schema_ver      <> t.schema_ver
)
AND  o.type IN ('TR', 'P' ,'U' ,'V')
AND  o.name NOT IN ( SELECT oi.name 
         FROM sysobjects oi INNER JOIN #tmp ti ON oi.id = ti.id
         WHERE oi.name <> ti.name /*COLLATE*/
         AND oi.type IN ('TR', 'P' ,'U' ,'V')) 
UNION

--Changed (actually dropped and recreated [but not renamed])
SELECT 'changed' AS ChangeType, t.name, 'dropped' AS extra_info, 2 AS Priority
FROM #tmp t
WHERE    t.name IN ( SELECT ti.name /*COLLATE*/ FROM #tmp ti
         WHERE NOT EXISTS (SELECT * FROM sysobjects oi
                           WHERE oi.id = ti.id))
AND  t.name IN ( SELECT oi.name /*COLLATE*/ FROM sysobjects oi
         WHERE NOT EXISTS (SELECT * FROM #tmp ti
                           WHERE oi.id = ti.id)
         AND   oi.type  IN ('TR', 'P' ,'U' ,'V'))
UNION

--Deleted
SELECT 'deleted' AS ChangeType, t.name, '' AS extra_info, 0 AS Priority
FROM #tmp t
WHERE NOT EXISTS (SELECT * FROM sysobjects o
                  WHERE o.id = t.id)
AND t.name NOT IN (  SELECT oi.name /*COLLATE*/ FROM sysobjects oi
         WHERE NOT EXISTS (SELECT * FROM #tmp ti
                           WHERE oi.id = ti.id)
         AND   oi.type  IN ('TR', 'P' ,'U' ,'V'))
UNION

--Added
SELECT 'added' AS ChangeType, o.name /*COLLATE*/, '' AS extra_info, 4 AS Priority
FROM sysobjects o
WHERE NOT EXISTS (SELECT * FROM #tmp t
                  WHERE o.id = t.id)
AND      o.type  IN ('TR', 'P' ,'U' ,'V')
AND  o.name NOT IN ( SELECT ti.name /*COLLATE*/ FROM #tmp ti
         WHERE NOT EXISTS (SELECT * FROM sysobjects oi
                           WHERE oi.id = ti.id))
ORDER BY Priority ASC

注意:如果在任何数据库中使用非标准排序规则，则需要将/* COLLATE */替换为数据库排序规则。即COLLATE Latin1_General_CI_AI

每个数据库都应该在源代码控制下。目前缺少的是一种工具，可以自动将所有数据库对象(以及“配置数据”)脚本化为文件，然后将其添加到任何源代码控制系统。如果你正在使用SQL Server，那么我的解决方案在这里:http://dbsourcetools.codeplex.com/。玩得开心。 -内森。

我还使用了数据库中通过数据库扩展属性家族存储的一个版本的过程。我的应用程序有脚本的每个版本的步骤(即。从1.1移动到1.2)。部署时，它会查看当前版本，然后逐个运行脚本，直到到达最后一个应用程序版本。没有脚本有直接的“最终”版本，即使部署在干净的DB上也会通过一系列升级步骤进行部署。

Now what I like to add is that I've seen two days ago a presentation on the MS campus about the new and upcoming VS DB edition. The presentation was focused specifically on this topic and I was blown out of the water. You should definitely check it out, the new facilities are focused on keeping schema definition in T-SQL scripts (CREATEs), a runtime delta engine to compare deployment schema with defined schema and doing the delta ALTERs and integration with source code integration, up to and including MSBUILD continuous integration for automated build drops. The drop will contain a new file type, the .dbschema files, that can be taken to the deployment site and a command line tool can do the actual 'deltas' and run the deployment. I have a blog entry on this topic with links to the VSDE downloads, you should check them out: http://rusanu.com/2009/05/15/version-control-and-your-database/