Skip to Main Content
Oracle SQL*Plus: The Definitive Guide
book

Oracle SQL*Plus: The Definitive Guide

by Jonathan Gennick
March 1999
Intermediate to advanced content levelIntermediate to advanced
528 pages
14h 39m
English
O'Reilly Media, Inc.
Content preview from Oracle SQL*Plus: The Definitive Guide

UNDEFINE

UNDEFINE is the opposite of DEFINE, and erases a user variable definition. UNDEFINE is discussed in Chapter 4 .

UNDEF[INE] variable_name [ variable_name...]

where:

UNDEF[INE]

Is the command, which may be abbreviated to UNDEF.

variable_name

Is the name of a user variable to delete. You can delete several variables with one command by listing them out separated by spaces.

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Oracle SQL*Plus: The Definitive Guide, 2nd Edition

Oracle SQL*Plus: The Definitive Guide, 2nd Edition

Jonathan Gennick
Oracle PL/SQL Programming, Third Edition

Oracle PL/SQL Programming, Third Edition

Steven Feuerstein, Bill Pribyl
Oracle SQL

Oracle SQL

Dan Hotka

Publisher Resources

ISBN: 1565925785Supplemental ContentCatalog PageErrata