问从服务器删除所有数据库

EN

-- drops all user databases
DECLARE @command nvarchar(max)
SET @command = ''

SELECT  @command = @command
+ 'ALTER DATABASE [' + [name] + ']  SET single_user with rollback immediate;'+CHAR(13)+CHAR(10)
+ 'DROP DATABASE [' + [name] +'];'+CHAR(13)+CHAR(10)
FROM  [master].[sys].[databases] 
 where [name] not in ( 'master', 'model', 'msdb', 'tempdb');

SELECT @command
EXECUTE sp_executesql @command

use [master]

DECLARE 
@DATABASENAME nVARCHAR(20)

DECLARE
@TABLE TABLE
(NAME nVARCHAR(50))

Declare @SQL nvarchar(100)

INSERT INTO @TABLE

SELECT 
name 
FROM sys.databases 
WHERE name not in 
    ('master'
    ,'tempdb'
    ,'model'
    ,'msdb'
    ,'ReportServer'
    ,'ReportServerTempDB')


while (select COUNT(*) from @table) > 0

begin

select @DATABASENAME = (select top 1 (name) from @TABLE)

DECLARE @kill varchar(8000) = '';
SELECT @kill = @kill + 'kill ' + CONVERT(varchar(5), spid) + ';'
FROM master..sysprocesses 
WHERE dbid = db_id(@DATABASENAME)

EXEC(@kill);

set @SQL = 'drop database ' + @DATABASENAME

exec sp_executesql @SQL, N'@databasename nvarchar(50)', @databasename; 

print @databasename + ' has been deleted'

delete from @TABLE where NAME = @DATABASENAME

end

use master
go
declare @dbnames nvarchar(max)
declare @statement nvarchar(max)
set @dbnames = ''
set @statement = ''
select @dbnames = @dbnames + ',[' + name + ']' from sys.databases 
    where name 
    NOT IN ('master','model','msdb','tempdb') 
    AND name NOT LIKE '%AdventureWorks%' -- Database to keep 
    AND name NOT LIKE '%DW%' -- Data warehouse database
    AND name NOT LIKE '%ReportServer%' -- Report server database
if len(@dbnames) = 0
    begin
    print 'no databases to drop'
    end
else
    begin
    set @statement = 'drop database ' + substring(@dbnames, 2, len(@dbnames))
    print @statement
    exec sp_executesql @statement
    end
go