我有一切必要的重新创建我的数据库从裸露的金属，减去数据本身。我相信有很多方法可以做到这一点，但我所有的脚本等都存储在subversion中，我们可以通过将所有这些从subversion中取出并运行安装程序来重建DB结构等。

这对我来说也一直是一个很大的烦恼——似乎对开发数据库进行快速更改，保存它(忘记保存更改脚本)太容易了，然后你就卡在那里了。您可以撤消刚才所做的并重新做它以创建更改脚本，当然，如果您愿意的话，也可以从头开始编写它，尽管这将花费大量的时间来编写脚本。

A tool that I have used in the past that has helped with this some is SQL Delta. It will show you the differences between two databases (SQL server/Oracle I believe) and generate all the change scripts necessary to migrate A->B. Another nice thing it does is show all the differences between database content between the production (or test) DB and your development DB. Since more and more apps store configuration and state that is crucial to their execution in database tables, it can be a real pain to have change scripts that remove, add, and alter the proper rows. SQL Delta shows the rows in the database just like they would look in a Diff tool - changed, added, deleted.

一个很好的工具。以下是链接: http://www.sqldelta.com/

我们有一个每周的sql转储到一个颠覆回购。这是完全自动化的，但这是一项非常繁重的任务。

你会想要限制修改的数量，因为它真的会在一段时间后消耗磁盘空间!

You should never just log in and start entering "ALTER TABLE" commands to change a production database. The project I'm on has database on every customer site, and so every change to the database is made in two places, a dump file that is used to create a new database on a new customer site, and an update file that is run on every update which checks your current database version number against the highest number in the file, and updates your database in place. So for instance, the last couple of updates:

if [ $VERSION \< '8.0.108' ] ; then
  psql -U cosuser $dbName << EOF8.0.108
    BEGIN TRANSACTION;
    --
    -- Remove foreign key that shouldn't have been there.
    -- PCR:35665
    --
    ALTER TABLE     migratorjobitems
    DROP CONSTRAINT migratorjobitems_destcmaid_fkey;
    -- 
    -- Increment the version
    UPDATE          sys_info
    SET             value = '8.0.108'
    WHERE           key = 'DB VERSION';
    END TRANSACTION;
EOF8.0.108
fi

if [ $VERSION \< '8.0.109' ] ; then
  psql -U cosuser $dbName << EOF8.0.109
    BEGIN TRANSACTION;
    --
    -- I missed a couple of cases when I changed the legacy playlist
    -- from reporting showplaylistidnum to playlistidnum
    --
    ALTER TABLE     featureidrequestkdcs
    DROP CONSTRAINT featureidrequestkdcs_cosfeatureid_fkey;
    ALTER TABLE     featureidrequestkdcs
    ADD CONSTRAINT  featureidrequestkdcs_cosfeatureid_fkey
    FOREIGN KEY     (cosfeatureid)
    REFERENCES      playlist(playlistidnum)
    ON DELETE       CASCADE;
    --
    ALTER TABLE     ticket_system_ids
    DROP CONSTRAINT ticket_system_ids_showplaylistidnum_fkey;
    ALTER TABLE     ticket_system_ids
    RENAME          showplaylistidnum
    TO              playlistidnum;
    ALTER TABLE     ticket_system_ids
    ADD CONSTRAINT  ticket_system_ids_playlistidnum_fkey
    FOREIGN KEY     (playlistidnum)
    REFERENCES      playlist(playlistidnum)
    ON DELETE       CASCADE;
    -- 
    -- Increment the version
    UPDATE          sys_info
    SET             value = '8.0.109'
    WHERE           key = 'DB VERSION';
    END TRANSACTION;
EOF8.0.109
fi

我相信有更好的方法来做到这一点，但到目前为止，它对我来说是有效的。

Visual Studio中的新数据库项目提供了源代码控制和更改脚本。

他们有一个很好的工具，可以比较数据库，并可以生成一个脚本，将一个数据库的模式转换为另一个数据库，或者更新一个数据库中的数据以匹配另一个数据库。

db模式被“分解”以创建许多许多小的.sql文件，每个DDL命令一个描述db。

+tom

附加信息2008-11-30

作为一名开发人员，我在过去的一年里一直在使用它，我真的很喜欢它。它可以很容易地比较我的开发工作和生产工作，并生成用于发布的脚本。我不知道它是否缺少dba在“企业级”项目中所需要的特性。

因为模式被“分解”到sql文件中，所以源代码控制可以正常工作。

One gotcha is that you need to have a different mindset when you use a db project. The tool has a "db project" in VS, which is just the sql, plus an automatically generated local database which has the schema and some other admin data -- but none of your application data, plus your local dev db that you use for app data dev work. You rarely are aware of the automatically generated db, but you have to know its there so you can leave it alone :). This special db is clearly recognizable because it has a Guid in its name,

VS DB项目在将其他团队成员所做的DB更改集成到您的本地项目/相关DB方面做得很好。但是您需要采取额外的步骤，将项目模式与本地dev db模式进行比较，并应用mods。这是有道理的，但一开始似乎很尴尬。

DB项目是一个非常强大的工具。它们不仅生成脚本，而且可以立即应用它们。请确保不要用它破坏您的生产数据库。；）

我真的很喜欢VS DB项目，我希望在我所有的DB项目中使用这个工具。

+tom

作为一种规则，我们将所有的对象代码(存储过程、视图、触发器、函数等)都保存在源代码控制中，因为这些对象都是代码，而且几乎所有其他答案都同意，代码属于某种形式的版本控制系统。

As for CREATE, DROP, ALTER statements, etc. (DDL), we developed and use BuildMaster to manage the deployment of these scripts such that they can be run once and only once against a target database (whether they fail or not). The general idea is that developers will upload change scripts into the system and when it comes time for deployment, only the change scripts that haven't been run against the target environment's database will be run (this is managed very similarly to Autocracy's answer). The reason for this separation of script types lies in that once you manipulate a table's structure, add an index, etc., you effectively cannot undo that without writing a brand new script, or restoring the database - as opposed to the object code where you can simply drop a view or stored procedure then recreate it.

例如，当您将生产数据库恢复到集成环境中时，可以看到一些好处，系统会自动准确地知道哪些脚本没有运行，并将更改新恢复的数据库的表结构，使其与开发相关。