Only for advanced students !!! Create a ddl trigger for each database

SOURCE:
http://stackoverflow.com/questions/334671/create-a-ddl-trigger-in-every-database-on-a-2005-instance
USE [SQL_DBA]
GO
/****** Object: Table [dbo].[DDL_Login_Log] Script Date: 03/03/2009 17:28:10 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[DDL_Login_Log](
[DDL_Id] [int] IDENTITY(1,1) NOT NULL,
[PostTime] [datetime] NOT NULL,
[DB_User] [nvarchar](100) NULL,
[DBName] [nvarchar](100) NULL,
[Event] [nvarchar](100) NULL,
[TSQL] [nvarchar](2000) NULL,
[Object] [nvarchar](1000) NULL,
CONSTRAINT [PK_DDL_Login_Log] PRIMARY KEY CLUSTERED
(
[DDL_Id] ASC,
[PostTime] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
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--This creates the trigger on the model database so all new DBs get it
USE [model]
GO
/****** Object: DdlTrigger [ddl_DB_User] Script Date: 03/03/2009 17:26:13 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TRIGGER [ddl_DB_User]
ON DATABASE
FOR DDL_DATABASE_SECURITY_EVENTS
AS

DECLARE @data XML
declare @user nvarchar(100)

SET @data = EVENTDATA()
select @user = convert(nvarchar(100), SYSTEM_USER)

execute as login='domain\sqlagent'
INSERT sql_dba.dbo.DDL_Login_Log
(PostTime, DB_User, DBName, Event, TSQL,Object)
VALUES
(@data.value('(/EVENT_INSTANCE/PostTime)[1]', 'nvarchar(100)'),
@user,
db_name(),
@data.value('(/EVENT_INSTANCE/EventType)[1]', 'nvarchar(100)'),
@data.value('(/EVENT_INSTANCE/TSQLCommand/CommandText)[1]','nvarchar(max)'),
@data.value('(/EVENT_INSTANCE/ObjectName)[1]', 'nvarchar(1000)')
)

GO
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO


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--CREATE TRIGGER IN ALL NON SYSTEM DATABASES

DECLARE @dataname varchar(255),
@dataname_header varchar(255),
@command VARCHAR(MAX),
@usecommand VARCHAR(100)
SET @command = '';
DECLARE datanames_cursor CURSOR FOR SELECT name FROM sys.databases
WHERE name not in ('master', 'pubs', 'tempdb', 'model','msdb')
OPEN datanames_cursor
FETCH NEXT FROM datanames_cursor INTO @dataname
WHILE (@@fetch_status = 0)
BEGIN

PRINT '----------BEGIN---------'

PRINT 'DATANAME variable: ' + @dataname;

EXEC ('USE ' + @dataname);

PRINT 'CURRENT db: ' + db_name();

SELECT @command = 'CREATE TRIGGER DBA_Audit ON DATABASE
FOR DDL_DATABASE_LEVEL_EVENTS
AS
DECLARE @data XML
DECLARE @cmd NVARCHAR(1000)
DECLARE @posttime NVARCHAR(24)
DECLARE @spid NVARCHAR(6)
DECLARE @loginname NVARCHAR(100)
DECLARE @hostname NVARCHAR(100)
SET @data = EVENTDATA()
SET @cmd = @data.value(''(/EVENT_INSTANCE/TSQLCommand/CommandText)[1]'', ''NVARCHAR(1000)'')
SET @cmd = LTRIM(RTRIM(REPLACE(@cmd,'''','''')))
SET @posttime = @data.value(''(/EVENT_INSTANCE/PostTime)[1]'', ''DATETIME'')
SET @spid = @data.value(''(/EVENT_INSTANCE/SPID)[1]'', ''nvarchar(6)'')
SET @loginname = @data.value(''(/EVENT_INSTANCE/LoginName)[1]'',
''NVARCHAR(100)'')
SET @hostname = HOST_NAME()
INSERT INTO [DBA_AUDIT].dbo.AuditLog(Command, PostTime,HostName,LoginName)
VALUES(@cmd, @posttime, @hostname, @loginname);'

EXEC (@command);
FETCH NEXT FROM datanames_cursor INTO @dataname;
PRINT '----------END---------'
END
CLOSE datanames_cursor
DEALLOCATE datanames_cursor

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----Disable all triggers when things go haywire
sp_msforeachdb @command1='use [?]; IF EXISTS (SELECT * FROM sys.triggers WHERE name = N''ddl_DB_User'' AND parent_class=0)disable TRIGGER [ddl_DB_User] ON DATABASE'