[AccessD] Should I use Attachments?

jwcolby jwcolby at colbyconsulting.com
Mon May 16 08:29:33 CDT 2011


And storing them in SQL Server is different from storing them in Access.

John W. Colby
www.ColbyConsulting.com

On 5/15/2011 1:48 PM, Doug Murphy wrote:
> Darrell,
>
> I worked with a client who had a database and was using the attachment
> fields type to store documents. The form with those fields was really slow,
> painfully slow. I was not able to prove that this field type was the
> problem, but suggested that we store the documents separately in a document
> directory. The owner of the company wanted the documents in the database and
> for other reasons wanted to upgrade the back end to sql server. We did this
> and I stored the documents in binary format in sql server and the speed went
> up dramatically.
>
> I can't prove that attachment fields are slow, but that is my assumption.
>
> Doug
>
> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Darrell Burns
> Sent: Saturday, May 14, 2011 5:33 PM
> To: 'Access Developers discussion and problem solving'
> Subject: [AccessD] Should I use Attachments?
>
> New subject: my client wants to link PDF documents to records in an Asset
> table in an A2007 app. The attachment data type is perfect for what I want
> to do, but I've heard bad things about it. I know one caveat is that it's
> not backward-compatible. I've also heard that it's a performance drag. (I
> tried using OLE fields in A2000 a few years ago and quickly abandoned that
> approach). The Asset table would range from a few hundred to a couple
> thousand records per client. I'll be deploying the app as a runtime.
>
> I'd be interested in hearing the pros&  cons of attachments.
>
> Thanx,
> DB
>
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