Problem solved.

I've to use SQL syntax { d 'yyyy-mm-dd' } instead of CTOD()
There is some documentation on the DRVVFP.HLP in the VFP\DISTRIB.SRC directory




>Hi to all,
>
>I've to update my data on a Vfp table using ODBC driver.
>I don't know which format use for date field
>
>I've tried to update using these commands
>
>cmdStr = "UPDATE myTable SET myDateField = CTOD('" + DTOC( mydate ) + "') WHERE cClientCode == myClientcode"
>SQLEXEC(myConnection, cmdStr)
>
>There is a problem, these commands exchange month with day (I'm using the date format DD/MM/YYYY and on my table I've see the date updated with the format MM/DD/YYYY)
>So if a date like 20/07/1998 is valid for VFP ( if I do ? CTOD(myDate) I've the date ) the same date isn't write by ODBC driver on my table.
>
>Which setting have I missed to set ?
>Any other suggestion ?
>
>TIA
>Renato