TRIGGER的使用（修改SP自动触发）

CREATE TRIGGER [trg_save_change_SP] 
ON DATABASE 
FOR CREATE_PROCEDURE, ALTER_PROCEDURE,DROP_PROCEDURE
AS
    DECLARE @data XML
    DECLARE @InstanceName nvarchar(200),
        @DBName    nvarchar(100) ,
        @ObjectID int, 
        @Version    int ,         
        @DBUser    nvarchar(100),
        @InDateTime datetime, 
        @HostName nvarchar(200),
        @LoginName nvarchar(100),
        @EventName nvarchar(100),    
        @ObjectName nvarchar(200)  ,            
        @TSQL nvarchar(max),
        @ObjectType char(2),
        @SeqNo int            
            
    SET @data = EVENTDATA()

    SELECT  
        @InstanceName = @@SERVERNAME   ,
        @DBName = DB_NAME(),
        @HostName = hostname,  
        @DBUser = CONVERT(nvarchar(100), CURRENT_USER), 
        @LoginName = @data.value('(/EVENT_INSTANCE/LoginName)[1]', 'nvarchar(100)'), 
        @EventName = @data.value('(/EVENT_INSTANCE/EventType)[1]', 'nvarchar(100)'), 
        @ObjectName= @data.value('(/EVENT_INSTANCE/ObjectName)[1]', 'nvarchar(400)'),
        @TSQL = @data.value('(/EVENT_INSTANCE/TSQLCommand)[1]', 'nvarchar(max)') 
    FROM master..sysprocesses WHERE spid = @@spid    
    
    SELECT     @Version = ISNULL(MAX(Version),0) + 1 FROM admin.dbo.ObjectLog WHERE ObjectName = @ObjectName AND DBName = @DBName

    SELECT @ObjectType = type FROM sys.objects WHERE name = @ObjectName
    
    SELECT @SeqNo = ISNULL(MAX(SeqNo),0)+1 FROM admin.dbo.ObjectLog
    
    INSERT admin.dbo.ObjectLog(
        [SeqNo]
      , [DBName]
      , [ObjectID]
      , [ObjectName]
      , [Version]
      , [EventName]
      , [DBUser]
      , [HostName]
      , [LoginName]
      , [InDateTime]
      , [TSQL]
      , [CheckInChk]
      , [InstanceName]
      , [ObjectType]
)
VALUES(
          @SeqNo
        , @DBName
        , Object_ID(@ObjectName)
        , @ObjectName
        , @Version
        , @EventName
        , @DBUser
        , LTRIM(RTRIM(@HostName))
        , @LoginName
        , GETDATE()
        , @TSQL
        , '0'
        , @InstanceName
        , @ObjectType)