创建触发器以记录受影响的表的SQL？

我正在试图找出更新列值的内容,而我对应用程序知之甚少.快速浏览一下,我注意到大约90％的应用程序业务逻辑都是在数据库上处理的.毋庸置疑,SP,功能和触发器的深度是疯狂的.

我想在有问题的表上创建一个触发器,它将记录影响该表的SQL.可以使用什么SQL在正在更新的表的上下文中获取已执行的SQL？

细节：
MS SQL Server 2008

谢谢！！

解决方法

设置测试数据库的脚本

CREATE TABLE [dbo].[TableWithMysteryUpdate](
    [Period] [int] NOT NULL,[ColumnThatWillBeUpdated] [int]  NOT NULL
) ON [PRIMARY]
GO
INSERT [dbo].[TableWithMysteryUpdate] ([Period],[ColumnThatWillBeUpdated]) VALUES (1,20)
INSERT [dbo].[TableWithMysteryUpdate] ([Period],[ColumnThatWillBeUpdated]) VALUES (2,23)

GO

CREATE TABLE [dbo].[TestTable](
    [foo] [int] IDENTITY(1,1) NOT NULL,[bar] [nchar](10) NOT NULL,CONSTRAINT [PK_TestTable] PRIMARY KEY CLUSTERED 
(
    [foo] ASC
)
)
GO

CREATE TRIGGER [dbo].[triggerCausingMysteryUpdate] 
   ON  [dbo].[TestTable] 
   AFTER INSERT
AS 
BEGIN
    SET NOCOUNT ON;
UPDATE [dbo].[TableWithMysteryUpdate]
   SET [Period] = [Period]+1

END
GO

CREATE PROCEDURE [dbo].[Proc4]
AS
BEGIN
INSERT INTO [dbo].[TestTable]
           (
           [bar])
     VALUES
           ('Test')
END

GO

CREATE PROCEDURE [dbo].[Proc3]
AS
BEGIN
EXEC dbo.Proc4
END
GO

CREATE PROCEDURE [dbo].[Proc2]
AS
BEGIN
EXEC dbo.Proc3
END
GO

CREATE PROCEDURE [dbo].[Proc1]
AS
BEGIN
EXEC dbo.Proc2
END

所以场景是TableWithMysteryUpdate正在更新,但我不确定是什么.我将添加一个不执行任何操作的更新触发器,以便能够对此对象进行过滤.

CREATE TRIGGER [dbo].[triggerAfterUpdate] 
   ON  [dbo].[TableWithMysteryUpdate] 
   AFTER UPDATE
AS 
BEGIN
    SET NOCOUNT ON;

END

然后运行脚本以创建XEvents会话,触发最终将调用堆栈导致更新发生的过程,然后停止会话.

USE TestDB    

DECLARE @DynSql nvarchar(max)

SET @DynSql = '

IF EXISTS(SELECT * FROM sys.server_event_sessions WHERE name=''test_trace'')
    DROP EVENT SESSION [test_trace] ON SERVER;
CREATE EVENT SESSION [test_trace]
ON SERVER
ADD EVENT sqlserver.sql_statement_completed(
     ACTION (package0.callstack,sqlserver.session_id,sqlserver.sql_text,sqlserver.tsql_stack)
     WHERE (object_id = ' + cast(object_id('[dbo].[triggerAfterUpdate]') as varchar(10)) + ') 
     ),ADD EVENT sqlserver.sp_statement_completed(
     ACTION (package0.callstack,sqlserver.tsql_stack)
     WHERE (object_id = ' + cast(object_id('[dbo].[triggerAfterUpdate]') as varchar(10)) + ') 
     )
ADD TARGET package0.asynchronous_file_target
(set filename = ''c:\temp\test_trace.xel'',metadatafile = ''c:\temp\test_trace.xem'')
ALTER EVENT SESSION [test_trace] ON SERVER STATE = START
'

EXEC sp_executesql @DynSql
GO

EXEC  dbo.Proc1

GO

ALTER EVENT SESSION [test_trace] ON SERVER STATE = STOP

可以使用读取跟踪数据

SELECT CONVERT (XML,event_data) AS data
        FROM sys.fn_xe_file_target_read_file ('C:\Temp\test_trace*.xel','C:\Temp\test_trace*.xem',NULL,NULL)

调用堆栈部分是

<action name="tsql_stack" package="sqlserver">
    <value>&lt;frame level='1' handle='0x03000800E8EA0D0612E4EB00A59D00000000000000000000' line='6' offsetStart='228' offsetEnd='264'/&gt;
&lt;frame level='2' handle='0x03000800921155002C81E700A59D00000000000000000000' line='8' offsetStart='258' offsetEnd='398'/&gt;
&lt;frame level='3' handle='0x03000800CB3549012F81E700A59D00000100000000000000' line='5' offsetStart='90' offsetEnd='284'/&gt;
&lt;frame level='4' handle='0x03000800045A3D022F81E700A59D00000100000000000000' line='5' offsetStart='90' offsetEnd='120'/&gt;
&lt;frame level='5' handle='0x030008003D7E31033081E700A59D00000100000000000000' line='5' offsetStart='90' offsetEnd='120'/&gt;
&lt;frame level='6' handle='0x0300080076A225043081E700A59D00000100000000000000' line='5' offsetStart='90' offsetEnd='120'/&gt;
&lt;frame level='7' handle='0x010008002E775203603D9A0D000000000000000000000000' line='2' offsetStart='4' offsetEnd='-1'/&gt;</value>
    <text />
  </action>

加入DMV

WITH CapturedResults AS
    ( SELECT data.value ( '(/event/@timestamp)[1]','DATETIME')                                        AS [TIME],data.value ( '(/event/data[@name=''cpu'']/value)[1]','INT')                                   AS [CPU (ms)],CONVERT (FLOAT,data.value ('(/event/data[@name=''duration'']/value)[1]','BIGINT')) / 1000000 AS [Duration (s)],data.value ( '(/event/action[@name=''sql_text'']/value)[1]','VARCHAR(MAX)')                   AS [SQL STATEMENT],CAST(data.value('(/event/action[@name="tsql_stack"]/value)[1]','varchar(MAX)') AS XML)         AS [stack_xml]
    FROM (SELECT CONVERT (XML,event_data) AS                                                             data
        FROM sys.fn_xe_file_target_read_file ('C:\Temp\test_trace*.xel',NULL)
        )
        entries
    ),StackData AS
    ( SELECT frame_xml.value('(./@level)','int')      AS [frame_level],frame_xml.value('(./@handle)','varchar(MAX)') AS [sql_handle],frame_xml.value('(./@offsetStart)','int')     AS [offset_start],frame_xml.value('(./@offsetEnd)','int')       AS [offset_end]
    FROM CapturedResults CROSS APPLY stack_xml.nodes('//frame') N (frame_xml)
    )
SELECT sd.frame_level,object_name(st.objectid,st.dbid) AS ObjectName,SUBSTRING(st.text,(sd.offset_start/2)+1,((
            CASE sd.offset_end
                WHEN -1
                THEN DATALENGTH(st.text)
                ELSE sd.offset_end
            END - sd.offset_start)/2) + 1) AS statement_text,qp.query_plan,qs2.creation_time,qs2.last_execution_time,qs2.execution_count
FROM StackData AS sd CROSS APPLY sys.dm_exec_sql_text(CONVERT(VARBINARY(MAX),sd.sql_handle,1)) AS st
    LEFT OUTER JOIN sys.dm_exec_query_stats qs2
    ON  qs2.sql_handle = CONVERT(VARBINARY(MAX),1) OUTER APPLY sys.dm_exec_query_plan(CONVERT(VARBINARY(MAX),qs2.plan_handle,1)) AS qp

给出结果(显示整个tsql调用堆栈)

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