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Table of Contents

DRAFT

Glossary

O

Index A B C D E F G H I J K L M N O P Q R S T U V W X Y Z $ Glossary

Object

  • an entity within the Environment that can be accessed and manipulated, a column definition, for example.

ODBC

  • Open Database Connectivity; (1) a standard for accessing different databases from PCs or other small workstations, providing a common SQL-based method for translating requests into the database tool's native SQL (2) software developed by Microsoft that enables Windows applications to connect to various databases.

ODBC Administrator

  • software written by both Microsoft and the ODBC Driver software company to create and maintain DataSources.

ODBC Driver

  • software written by DISC specifically for Omnidex-enhanced databases;
  • the Omnidex module that sends ODBC calls to the Omnidex retrieval engine that accesses the database, attached to a container application by Driver Manager.

ODBC-aware applications

  • an application that uses Microsoft's ODBC technology to access databases.

Omnidex

  • an advanced indexing product from Dynamic Information Systems Corporation (DISC), providing greater query flexibility than native database methods and accelerating database search and retrieval by reducing I/O.

Omnidex Access

  • The Omnidex open systems API that performs the index look-ups, qualifying counts, and data retrievals, including the routines oaqualify, oaselect, and oafetch. Also known as OmniAccess.

Omnidex Environment

Omnidex condition word

  • word 11 of the status array, which contains an error code if a call to an Omnidex intrinsic failed.

Omnidex detail

  • a detail set linked to an Omnidex master by an Omnidex SI (search item).

Omnidex domain

  • see Domain.

Omnidex error indicator

  • the word of the status array that indicates whether an error has occurred. This word differs between default (active) error handling and passive error handling.

Omnidex ID

  • a binary integer (I2, J2, or K2) value that is used to identify records during keyword searches (for Multiple keys);
  • the arbitrary sequential ID of a record assigned by Omnidex.
  • Also known as ODXID or ODX ID

Omnidex indexes

  • the indexed columns or composite indexes designated for Omnidex keyword or sorted indexing through the DBINSTAL installation utility program.

Omnidex Intrinsic Interface

  • Omnidex intrinsics that provide retrieval access to Multiple and Sorted key indexes and maintenance to Omnidex indexes.

Omnidex master

  • a master data set that contains one or more fields specified for Omnidex keyword retrieval, or a master that is linked by the Omnidex SI to a detail that contains one or more Multiple keys.

Omnidex root file

  • the index file that contains information about the database structure, including which fields are specified for Omnidex retrieval.

Omnidex Search Item

  • the search item field in an Omnidex master which may also be the Omnidex ID for the set (that is, the SI-ID). See Search Item.

One-to-many relationship

  • refers to data entities where one entity corresponds to many other entities, as in the case of a search item value to many detail records.

One-to-one relationship

  • refers to data entities where one entity corresponds to only one other entity, as in the case of a search item value to a master record.

Operator

  • any special character or token used in Omnidex retrievals, for example, the Multifind operator (&).

OR criteria

  • Multiple criteria values or predicates that records must match one or more of, but not all.

Outer join

  • A join that includes all rows from joined tables that meet the specified search criteria. Rows without matching records in the joined table are matched with null values.
 
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