我有一个经常从Visual Studio数据库项目重新部署的开发数据库(通过TFS自动构建)。
有时当我运行我的构建时，我会得到这个错误:
ALTER DATABASE failed because a lock could not be placed on database 'MyDB'. Try again later.
ALTER DATABASE statement failed.
Cannot drop database "MyDB" because it is currently in use.
我试了一下:
ALTER DATABASE MyDB SET RESTRICTED_USER WITH ROLLBACK IMMEDIATE
但我仍然无法删除数据库。(我猜大多数开发人员都有dbo访问权限。)
我可以手动运行SP_WHO并开始终止连接，但我需要在自动构建中自动执行此操作。(虽然这次我的连接是数据库中唯一一个我试图放弃的连接。)
是否有一个脚本可以删除我的数据库，而不管连接的是谁?
当前回答
如果你只想删除一个数据库，你可以选择“关闭现有连接”，默认情况下这个选项是不设置的。
右键单击数据库目录->选项。 删除->检查选项。 好吧
其他回答
您可以通过以下方法获取SSMS提供的脚本:
右键单击SSMS中的数据库，选择“删除” 在对话框中，选中“关闭现有连接”复选框。 单击对话框顶部的Script按钮。
脚本看起来像这样:
USE [master]
GO
ALTER DATABASE [YourDatabaseName] SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
USE [master]
GO
DROP DATABASE [YourDatabaseName]
GO
如果你只想删除一个数据库，你可以选择“关闭现有连接”，默认情况下这个选项是不设置的。
右键单击数据库目录->选项。 删除->检查选项。 好吧
To my experience, using SINGLE_USER helps most of the times, however, one should be careful: I have experienced occasions in which between the time I start the SINGLE_USER command and the time it is finished... apparently another 'user' had gotten the SINGLE_USER access, not me. If that happens, you're in for a tough job trying to get the access to the database back (in my case, it was a specific service running for a software with SQL databases that got hold of the SINGLE_USER access before I did). What I think should be the most reliable way (can't vouch for it, but it is what I will test in the days to come), is actually: - stop services that may interfere with your access (if there are any) - use the 'kill' script above to close all connections - set the database to single_user immediately after that - then do the restore
鲜为人知的是:GO sql语句可以接受一个整数来表示重复上一个命令的次数。
所以如果你:
ALTER DATABASE [DATABASENAME] SET SINGLE_USER
GO
然后:
USE [DATABASENAME]
GO 2000
这将重复使用USE命令2000次，在所有其他连接上强制死锁，并获得单个连接的所有权。(给你的查询窗口单独访问做你想做的事。)
在终止进程期间，应该小心处理异常。所以你可以使用这个脚本:
USE master;
GO
DECLARE @kill varchar(max) = '';
SELECT @kill = @kill + 'BEGIN TRY KILL ' + CONVERT(varchar(5), spid) + ';' + ' END TRY BEGIN CATCH END CATCH ;' FROM master..sysprocesses
EXEC (@kill)