Multi‐value fields and dBase III

Program: electronic library and information systems

ISSN: 0033-0337

Publication date: 1 February 1987


Many of us are aware of the yawns of waiting for dBase to look sequentially through a 10,000‐record database for a term or terms hidden in a title or descriptor field. I have tried to persuade dBase III to perform a little more smartly with some degree of success. Users will know that dBase retrieves almost instantaneously from indexed fields but it is not logical to index long, ‘multi‐value’ fields like titles or abstracts. What we have done, however, is to extract keywords from these fields or other descriptive parts of the document and build up a parallel keyword file consisting of two fields — keyword and accession number, which provide a link field with the main database. Thus, each entry in the main database may have a number (in our case up to 7) of corresponding entries in the keyword file, which is itself indexed for fast retrieval.


Vaughan, S. (1987), "Multi‐value fields and dBase III", Program: electronic library and information systems, Vol. 21 No. 2, pp. 183-188.

Download as .RIS




Copyright © 1987, MCB UP Limited

To read the full version of this content please select one of the options below

You may be able to access this content by logging in via Shibboleth, Open Athens or with your Emerald account.
To rent this content from Deepdyve, please click the button.
If you think you should have access to this content, click the button to contact our support team.