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qkeys

Section: Herrin Software Development, Inc. (1)
Updated: 21 Oct 2000
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NAME

qkeys - Build a Database.key file from the Database file in the RelationDirectory.

SYNOPSIS

qkeys RelationDirectory

DESCRIPTION

This program is part of the procedure necessary to stabilize a qddb database. Given a Database file in a directory RelationDirectory, qkeys builds a file called Database.keys that is used as an index into the Database file that describes the byte offset and length of each tuple in the database. The purpose of this file is to prevent the parsing of the entire database by programs that need to access every entry.

DIAGNOSTICS

qkeys exits with a 0 status on success, 1 otherwise.

BUGS

qkeys expects the Database file to contain tuples separated by a blank (newline terminated) line. Programmers wishing to build new interfaces, either front or back ends to qddb, must remember this restriction.

REFERENCES

A Guide to QDDB
Eric H. Herrin II and Raphael A. Finkel

Qddb User's Guide

An ASCII Database for Fast Queries of Relatively Stable Data
Eric H. Herrin II and Raphael A. Finkel
Computing Systems, Volume 4 Number 2
University of California Press, Berkeley CA

Schema and Tuple Trees: An Intuitive Structure for 
Representing Relational Data
Eric H. Herrin, II and Raphael A. Finkel
Computing Systems, Volume 9, Number 2
MIT Press, Cambridge MA

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