CREATE CURSOR PirillinoDelPicchio (a i) APPEND BLANK INSERT INTO PirillinoDelPicchio values(1) INSERT INTO PirillinoDelPicchio values(2) GO TOP SELECT a,ISBLANK(PirillinoDelPicchio.a) FROM PirillinoDelPicchio SELECT a,ISBLANK(a) FROM PirillinoDelPicchioyou can post me a example where ISBLANK is non costant ?