Fields build up a record . A collection of records constitutes a database . Many databases use the term words anywhere for the keyword search. A database is an enormous filing system, consisting of records. This kind of controlled vocabulary is used to ensure consistency and order in the database.
Subject headings constitute the subject field of a record.
Keywords represent ideas and concepts of the searcher . They are an educated guess on the searcher s part on how data could be identified in the database. A full text-database is organized into records as in any other bibliographic database with only one difference, that it has a field in the records for the actual texts of the documents. This complicates the keyword search, because the words from the search query can occur in any part of the text body they can even be a part of the title or a part of a footnote. Here are some ways to make your search more manageable.