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Oracle in a Nutshell
book

Oracle in a Nutshell

by Rick Greenwald, David C. Kreines
December 2002
Intermediate to advanced content levelIntermediate to advanced
928 pages
85h 29m
English
O'Reilly Media, Inc.
Content preview from Oracle in a Nutshell

Strings in SQL*Plus Commands

Many SQL*Plus-specific commands take string values as parameters. Simple strings containing no spaces or punctuation characters may be entered without quotes. Here’s an example:

COLUMN employee_id HEADING emp_id

Generally, it’s safer to use quoted strings. Either single or double quotes may be used. For example:

COLUMN employee_id HEADING 'Emp #'
COLUMN employee_id HEADING "Emp #"

To embed quotes in a string, either double them or use a different enclosing quote. The following two commands have equivalent results:

COLUMN employee_id HEADING '''Emp #'''
COLUMN employee_id HEADING "'Emp #'"

The single exception to these rules is the PROMPT command. All quotes used in a PROMPT command will appear in the output.

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Publisher Resources

ISBN: 0596003366Errata Page