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NAME

qdel - Delete a tuple from the relation.

SYNOPSIS

qdel RelationDirectory UniqueId

DESCRIPTION

qdel attempts to delete all traces of a tuple in the relation RelationDirectory having the unique record identifier UniqueId. It will automatically figure out whether the unique record identifier refers to added, changed or original records and delete the appropriate files. If the tuple has not been changed since the last stabilization, qdel will change the `V' to an `I' in the hidden attribute (%0).

SEE ALSO

qadd(1), qchange(1), qedit(1)

BUGS

None known.

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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