Default: The default is that there is no enclosure character.
Purpose
The ENCLOSED_BY parameter specifies a field enclosure character.
Syntax and Description
ENCLOSED_BY=['char'|x'hex-char']
The enclosure character must be a single character. It can be in hexadecimal notation.
Restrictions
The same character must be used to signify both the beginning and the ending of the enclosure.
Example
In the following example, the field data is enclosed by the '/' character (forward slash).
> sqlldr hr TABLE=employees ENCLOSED_BY='/'