LNNVL

LNNVL evaluates a condition when one or both operands of the condition may be null. LNNVL can be used anywhere a scalar expression can appear, even in contexts where the IS [NOT] NULL, AND, or OR conditions are not valid but would otherwise be required to account for potential nulls.

NOTE: This function returns TRUE if the condition is false or unknown, and FALSE if the condition is true.

Return Value

NUMBER

Syntax

LNNVL(condition)

Arguments

condition can be any expression containing scalar values.

Examples

LNNVL(1 > 4) returns TRUE.