Glossary

When modifying a record in DATADEX, the character you type to leave the leading bytes of a character field unchanged so that you can modify the trailing bytes.

a field, or column, that is used to select records from a data set, providing fast access to rows. Keys are typically indexed, uniquely identify parent rows, and provide a correlation for joining tables and maintaining data integrity across tables. See also Native keys and OMNIDEX indexes.

enhancements to OMNIDEX keys that are specified during installation to enable certain retrieval features (like Grouping) or update features (like Batch indexing).

retrieval by an OMNIDEX or TurboIMAGE key field.

A word or number that is indexed for an MDK Index

An individual word or value in an MDK Index column delimited by spaces and punctuation. For example, if an MDK Index column contains “Kraft-Ebbing's Bait and Tackle” the words “KRAFT”, “EBBING”, “EBBING'S”, “BAIT”, and “TACKLE” are indexed as keywords.

the ability to find rows based on the words contained in a given field, regardless of the order in which the words appear. This is a primary feature of OMNIDEX indexes.

Indexes composed of a word or words from a specified field in a database row. Renamed to MDK Indexes.

to look up data by words embedded within strings of text.

refers to an OMNIDEX retrieval of record identifiers by any keyword value or combination of keyword values against an MDK Index.

an OMNIDEX retrieval that fetches only keyword values from the indexes. Through OmniAccess, you would call oaqualify with the KEYWD option, and then call oafetchkeys.