IsNull Method

Applies To

OBlob

OClob

Description

Returns TRUE if the LOB/BFILE refers to a NULL value in the database; otherwise returns FALSE.

Usage

bool IsNull(void) const throw(OException)

Arguments

none

Remarks

Some LOB/Bfile properties and methods return errors when a LOB/Bfile is NULL.

This method makes it possible to check for NULL and avoid these errors.