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'

SELECT
   ServerName   = @@servername,
   DatabaseName = db_name(),
   SchemaName   = isnull( s.name, '' ),
   TableName    = isnull( o.name, 'DDL Trigger' ),
   TriggerName  = t.name, 
   Defininion   = object_definition( t.object_id )

FROM sys.triggers t
   LEFT JOIN sys.all_objects o
      ON t.parent_id = o.object_id
   LEFT JOIN sys.schemas s
      ON s.schema_id = o.schema_id
ORDER BY 
   SchemaName,
   TableName,
   TriggerName

使用此查询:

    SELECT     
        DB_NAME() AS DataBaseName,  
        S.Name AS SchemaName,               
        T.name AS TableName,
        dbo.SysObjects.Name AS TriggerName,
        dbo.sysComments.Text AS SqlContent,
    FROM dbo.SysObjects 
    INNER JOIN dbo.sysComments ON dbo.SysObjects.ID = dbo.sysComments.ID
    INNER JOIN sys.tables AS T ON sysobjects.parent_obj = t.object_id 
    INNER JOIN sys.schemas AS S ON t.schema_id = s.schema_id 
    WHERE dbo.SysObjects.xType = 'TR' 
        AND dbo.SysObjects.Name LIKE 'Permit_AfterInsert' ---- <----- HERE

不需要与其他表连接…所有信息都可以从sys.objects中获取。

SELECT  name as trigger_name
, object_name(parent_obj) as tableName
, object_schema_name(parent_obj) as schemaName 
,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 s
WHERE s.type = 'TR' 

上面的代码是错误的，如下所示:

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' 
EXCEPT
SELECT OBJECT_NAME(parent_id) as Table_Name FROM sys.triggers

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。