Hello
I have a table and would like the empty volume to be updated to 0

I have written the script to update the column "19-04-2024"
the problem is the name of the column can be changed and I prefer to use column (3) or column (4)
but it doesn't work.
can you please correct the script?
dt << Begin Data Update;
dt << Recode Column (
dt << Column (3),
{Map Value( _rcOrig, {., 0}, Unmatched( _rcNow ) )},
Update Properties( 1 ),
Target Column(Column (3) ) );
dt << End Data Update;