For example, if an address field contained more than one address, finding addresses would be difficult, if not impossible. Attachments and database design rulesīy default, each field in a relational database contains only one piece of data. In contrast, Access stores the attached files in their native formats with no supporting images, and you do not need to install additional software in order to view the images from within your database. For example, if you store JPEG image files in an Access database, every computer that runs that database requires another program that is registered as an OLE server for JPEG images. In addition, OLE requires programs called OLE servers to function. By using attachments, you open documents and other non-image files in their parent programs, so from within Access, you can search and edit those files. When you viewed an image or a document from your database, OLE showed you the bitmap image, not the original file. Those bitmap files could become quite large - as much as 10 times larger than the original file. By default, OLE created a bitmap equivalent of the image or document. Earlier versions of Access used a technology called Object Linking and Embedding (OLE) to store images and documents. You can now attach one or more resumes to the record for each contact, plus a photo of each contact.Īttachments also store data more efficiently. For example, let's say you own a job contacts database. You can use attachments to store several files in a single field, and you can even store multiple types of files in that field. Use attachments without a mouse or other pointing device This article provides the background information and steps needed to configure a database to use attachments, and to attach and manage data. You use the Attachment feature in Access to add one or more files - documents, presentations, images, and so on - to the records in your database.
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