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From "Atif.Sarfraz" <Atif.Sarf...@kerzner.com>
Subject Logging large messages using ADO.NET appender
Date Thu, 05 Apr 2007 19:18:07 GMT
Hi,

I am trying to log a large XML message whenever there is an exception in
our application. I have defined my table as follows, i.e. setting the
Message column as ntext.

CREATE TABLE [dbo].[ Log](
	[Id] [int] IDENTITY(1,1) NOT NULL,
	[Date] [datetime] NOT NULL,
	[Machine] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS
NULL,
	[Thread] [varchar](255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT
NULL,
	[Level] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT
NULL,
	[Logger] [varchar](255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT
NULL,
	[Message] [ntext] COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
	[Exception] [varchar](2000) COLLATE SQL_Latin1_General_CP1_CI_AS
NULL,
 CONSTRAINT [PK_APP_Log] PRIMARY KEY CLUSTERED 
(
	[Id] ASC
)WITH FILLFACTOR = 90 ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]


Since I am not sure about the actual size of the message I have defined
the parameter as equal to 99000 characters. Is this the right way of
doing this, or is there any other way by which I can tell Log4Net to log
all the message without specifying the size here. 
(Note: My messages do get logged properly using this approach but I
don't want to give a fixed size here).

<parameter>
<parameterName value="@message" />
	<dbType value="String" />
	<size value="99000" />
	<layout type="log4net.Layout.PatternLayout">
		<conversionPattern value="%message" />
	</layout>
</parameter>

Regards,
Atif Sarfraz


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