>

>CREATE CURSOR base (a i)
>APPEND BLANK
>INSERT INTO base values(1)
>INSERT INTO base values(2)
>GO TOP
>
>SELECT a,ISBLANK(Base.a) FROM Base
>
>SELECT a,ISBLANK(a) FROM Base
>
>

>
>ISBLANK() not uses field of SELECT Table.
>
>Final words:
>
>"ISBLANK() is not usable within SELECT"

CREATE CURSOR PirillinoDelPicchio (a c(10))
APPEND BLANK
INSERT INTO PirillinoDelPicchio values("1")
INSERT INTO PirillinoDelPicchio values("2")
GO TOP

SELECT a,ISBLANK(a) FROM PirillinoDelPicchio

Update: Ah, I see you figured this out downthread.