ISNULL( ) Function

Example   See Also

Returns true (.T.) if an expression evaluates to a null value; otherwise, ISNULL( ) returns false (.F.).

Syntax

ISNULL(eExpression)

Returns

Logical

Arguments

eExpression

Specifies the expression to evaluate.

Remarks

Use ISNULL( ) to determine if the contents of a field, memory variable, or array element contains a null value, or if an expression evaluates to a null value.