EMPTY()

    EMPTY() determines if the result of an expression is empty.

Syntax

    EMPTY(<exp>)

Returns

    A logical value.

    EMPTY() returns a logical true (.T.) depending on the type of
    expression being evaluated if:

    -  The character expression is a null string or equal to all spaces
    -  The numeric expression equals 0
    -  The date expression contains an empty date ("  /  /  ")
    -  The logical expression equals .F.