这里有一种方法:

SELECT 
     sysobjects.name AS trigger_name 
    ,USER_NAME(sysobjects.uid) AS trigger_owner 
    ,s.name AS table_schema 
    ,OBJECT_NAME(parent_obj) AS table_name 
    ,OBJECTPROPERTY( id, 'ExecIsUpdateTrigger') AS isupdate 
    ,OBJECTPROPERTY( id, 'ExecIsDeleteTrigger') AS isdelete 
    ,OBJECTPROPERTY( id, 'ExecIsInsertTrigger') AS isinsert 
    ,OBJECTPROPERTY( id, 'ExecIsAfterTrigger') AS isafter 
    ,OBJECTPROPERTY( id, 'ExecIsInsteadOfTrigger') AS isinsteadof 
    ,OBJECTPROPERTY(id, 'ExecIsTriggerDisabled') AS [disabled] 
FROM sysobjects 

INNER JOIN sysusers 
    ON sysobjects.uid = sysusers.uid 

INNER JOIN sys.tables t 
    ON sysobjects.parent_obj = t.object_id 

INNER JOIN sys.schemas s 
    ON t.schema_id = s.schema_id 

WHERE sysobjects.type = 'TR' 

编辑: 注释掉连接到sysusers查询工作在AdventureWorks2008。

SELECT 
     sysobjects.name AS trigger_name 
    ,USER_NAME(sysobjects.uid) AS trigger_owner 
    ,s.name AS table_schema 
    ,OBJECT_NAME(parent_obj) AS table_name 
    ,OBJECTPROPERTY( id, 'ExecIsUpdateTrigger') AS isupdate 
    ,OBJECTPROPERTY( id, 'ExecIsDeleteTrigger') AS isdelete 
    ,OBJECTPROPERTY( id, 'ExecIsInsertTrigger') AS isinsert 
    ,OBJECTPROPERTY( id, 'ExecIsAfterTrigger') AS isafter 
    ,OBJECTPROPERTY( id, 'ExecIsInsteadOfTrigger') AS isinsteadof 
    ,OBJECTPROPERTY(id, 'ExecIsTriggerDisabled') AS [disabled] 
FROM sysobjects 
/*
INNER JOIN sysusers 
    ON sysobjects.uid = sysusers.uid 
*/  
INNER JOIN sys.tables t 
    ON sysobjects.parent_obj = t.object_id 

INNER JOIN sys.schemas s 
    ON t.schema_id = s.schema_id 
WHERE sysobjects.type = 'TR' 

编辑2:用于SQL 2000

SELECT 
     o.name AS trigger_name 
    ,'x' AS trigger_owner 
    /*USER_NAME(o.uid)*/ 
    ,s.name AS table_schema 
    ,OBJECT_NAME(o.parent_obj) AS table_name 
    ,OBJECTPROPERTY(o.id, 'ExecIsUpdateTrigger') AS isupdate 
    ,OBJECTPROPERTY(o.id, 'ExecIsDeleteTrigger') AS isdelete 
    ,OBJECTPROPERTY(o.id, 'ExecIsInsertTrigger') AS isinsert 
    ,OBJECTPROPERTY(o.id, 'ExecIsAfterTrigger') AS isafter 
    ,OBJECTPROPERTY(o.id, 'ExecIsInsteadOfTrigger') AS isinsteadof 
    ,OBJECTPROPERTY(o.id, 'ExecIsTriggerDisabled') AS [disabled] 
FROM sysobjects AS o 
/*
INNER JOIN sysusers 
    ON sysobjects.uid = sysusers.uid 
*/  
INNER JOIN sysobjects AS o2 
    ON o.parent_obj = o2.id 

INNER JOIN sysusers AS s 
    ON o2.uid = s.uid 

WHERE o.type = 'TR'

这可能会有所帮助。

SELECT DISTINCT o.[name] AS [Table]
FROM    [sysobjects] o
JOIN    [sysobjects] tr
    ON  o.[id] = tr.[parent_obj]
WHERE   tr.[type] = 'tr'
ORDER BY [Table]

Get a list of tables and all their triggers.

SELECT DISTINCT o.[name] AS [Table], tr.[name] AS [Trigger]
FROM    [sysobjects] o
JOIN    [sysobjects] tr
    ON  o.[id] = tr.[parent_obj]
WHERE   tr.[type] = 'tr'
ORDER BY [Table], [Trigger]

你还可以像下面这样获得触发器体:

SELECT      o.[name],
            c.[text]
FROM        sys.objects AS o
INNER JOIN  sys.syscomments AS c
ON      o.object_id = c.id
WHERE   o.[type] = 'TR'

    CREATE TABLE [dbo].[VERSIONS](
        [ID] [uniqueidentifier] NOT NULL,
        [DATE] [varchar](100) NULL,
        [SERVER] [varchar](100) NULL,
        [DATABASE] [varchar](100) NULL,
        [USER] [varchar](100) NULL,
        [OBJECT] [varchar](100) NULL,
        [ACTION] [varchar](100) NULL,
        [CODE] [varchar](max) NULL,
     CONSTRAINT [PK_VERSIONS] PRIMARY KEY CLUSTERED 
    (
        [ID] ASC
    )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
    ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
    GO

    ALTER TABLE [dbo].[VERSIONS] ADD  CONSTRAINT [DF_VERSIONS_ID]  DEFAULT (newid()) FOR [ID]
    GO


    DROP TRIGGER [DB_VERSIONS_TRIGGER] ON ALL SERVER

    CREATE TRIGGER [DB_VERSIONS_TRIGGER] ON ALL SERVER FOR CREATE_PROCEDURE, ALTER_PROCEDURE, DROP_PROCEDURE, 
    CREATE_TRIGGER, ALTER_TRIGGER, DROP_TRIGGER, CREATE_FUNCTION, ALTER_FUNCTION, DROP_FUNCTION, CREATE_VIEW, ALTER_VIEW, 
    DROP_VIEW, CREATE_TABLE, ALTER_TABLE, DROP_TABLE 
    AS 
    SET NOCOUNT ON SET XACT_ABORT OFF; 
    BEGIN 
        TRY 
            DECLARE @DATA XML = EVENTDATA() 
            DECLARE @SERVER VARCHAR(100) = @DATA.value('(EVENT_INSTANCE/ServerName)[1]','VARCHAR(100)') 
            DECLARE @DATABASE VARCHAR(100) = @DATA.value('(/EVENT_INSTANCE/DatabaseName)[1]', 'VARCHAR(100)') 
            DECLARE @USER VARCHAR(100) = @DATA.value('(/EVENT_INSTANCE/LoginName)[1]','VARCHAR(100)') 
            DECLARE @OBJECT VARCHAR(100) = @DATA.value('(EVENT_INSTANCE/ObjectName)[1]','VARCHAR(100)') 
            DECLARE @ACTION VARCHAR(100) = @DATA.value('(/EVENT_INSTANCE/EventType)[1]','VARCHAR(100)') 
            DECLARE @CODE VARCHAR(MAX) = @DATA.value('(/EVENT_INSTANCE//TSQLCommand)[1]','VARCHAR(MAX)' ) 

            IF OBJECT_ID('DB_VERSIONS.dbo.VERSIONS') IS NOT NULL 
            BEGIN 
                INSERT INTO [DB_VERSIONS].[dbo].[VERSIONS]([SERVER], [DATABASE], [USER], [OBJECT], [ACTION], [DATE], [CODE]) VALUES (@SERVER, @DATABASE, @USER, @OBJECT, @ACTION, getdate(), ISNULL(@CODE, 'NA')) 
            END 
        END 
        TRY 
        BEGIN 
            CATCH 
        END 
    CATCH 
    RETURN

这是我使用的(通常包装在模型中):

Select
  [Parent] = Left((Case When Tr.Parent_Class = 0 Then '(Database)' Else Object_Name(Tr.Parent_ID) End), 32),
  [Schema] = Left(Coalesce(Object_Schema_Name(Tr.Object_ID), '(None)'), 16),
  [Trigger name] = Left(Tr.Name, 32), 
  [Type] = Left(Tr.Type_Desc, 3), -- SQL or CLR
  [MS?] = (Case When Tr.Is_MS_Shipped = 1 Then 'X' Else ' ' End),
  [On?] = (Case When Tr.Is_Disabled = 0 Then 'X' Else ' ' End),
  [Repl?] = (Case When Tr.Is_Not_For_Replication = 0 Then 'X' Else ' ' End),
  [Event] = Left((Case When Tr.Parent_Class = 0 
                       Then (Select Top 1 Left(Te.Event_Group_Type_Desc, 40)
                             From Sys.Trigger_Events As Te
                             Where Te.Object_ID = Tr.Object_ID)
                       Else ((Case When Tr.Is_Instead_Of_Trigger = 1 Then 'Instead Of ' Else 'After ' End)) +
                             SubString(Cast((Select [text()] = ', ' + Left(Te.Type_Desc, 1) + Lower(SubString(Te.Type_Desc, 2, 32)) +
                                                    (Case When Te.Is_First = 1 Then ' (First)' When Te.Is_Last = 1 Then ' (Last)' Else '' End)
                                             From Sys.Trigger_Events As Te
                                             Where Te.Object_ID = Tr.Object_ID
                                             Order By Te.[Type]
                                             For Xml Path ('')) As Character Varying), 3, 60) End), 60)
  -- If you like: 
  -- , [Get text with] = 'Select Object_Definition(' + Cast(Tr.Object_ID As Character Varying) + ')'
From 
  Sys.Triggers As Tr
Order By
  Tr.Parent_Class, -- database triggers first
  Parent -- alphabetically by parent

正如你所看到的，这是一个McGyver，但我认为这是值得的:

Parent                           Schema           Trigger name                     Type MS?  On?  Repl? Event
-------------------------------- ---------------- -------------------------------- ---- ---- ---- ----- -----------------------------------------
(Database)                       (None)           ddlDatabaseTriggerLog            SQL            X     DDL_DATABASE_LEVEL_EVENTS
Employee                         HumanResources   dEmployee                        SQL       X          Instead Of Delete
Person                           Person           iuPerson                         SQL       X          After Insert, Update
PurchaseOrderDetail              Purchasing       iPurchaseOrderDetail             SQL       X    X     After Insert
PurchaseOrderDetail              Purchasing       uPurchaseOrderDetail             SQL       X    X     After Update
PurchaseOrderHeader              Purchasing       uPurchaseOrderHeader             SQL       X    X     After Update
SalesOrderDetail                 Sales            iduSalesOrderDetail              SQL       X    X     After Insert, Update, Delete
SalesOrderHeader                 Sales            uSalesOrderHeader                SQL       X          After Update (First)
Vendor                           Purchasing       dVendor                          SQL       X          Instead Of Delete
WorkOrder                        Production       iWorkOrder                       SQL       X    X     After Insert
WorkOrder                        Production       uWorkOrder                       SQL       X    X     After Update

(向右滚动可以看到最后一列，也是最有用的一列)

使用这个查询:

SELECT OBJECT_NAME(parent_id) as Table_Name, * FROM [Database_Name].sys.triggers

它既简单又有用。