>I noticed that sometimes Tableupdate () does not save the record
>
>So I have to use tableuptade (.T.)
>
>But the problem is that tableuptade (.T.) will save all records
>
>So, I would like to find out why sometimes Tableupdate () does not work,
>because I need to use it
>
>
>Moises

TABLEUPDATE() is one the the functions where I prefer to use FULL syntax, and ALWAYS check the result from it, so in your case:

IF NOT TABLEUPDATE(0, 1, [AliasHere])
    AERROR(laError)
   MessageBox(laError[1,2])
ENDIF

BTW TABLEUPDATE(1) will update only these records which you are changed, no matter if they have the same values as the old record.