How Can I Prevent SQL*Plus from Prompting for Values When Ampersands Appear in Comments?

*Avoid using ampersand** in SQL

Plus scripts

When executing a SQL script in SQL*Plus, if an ampersand appears in a comment, a prompt will be triggered requiring replacement of the value. This behavior may interrupt execution.

To disable this feature and allow SQL*Plus to ignore the ampersand, consider the following solution:

• Use the 'define off' command:

<code class="language-sql">set define off</code>

This command will disable the substitution function and prevent SQL*Plus from interpreting the & symbol as a parameter marker.

• String ending with ampersand:

Alternatively, you can ensure that all strings containing an & symbol end with that character. This causes SQL*Plus to recognize the end of the string and ignore the ampersand.

<code class="language-sql">'StackOverflow &' || ' you'</code>

Note that this works if the & symbol is intended to be at the end of the string.

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