I added a column to an existing table, so there should be nothing (actually
the default, I suppose) in this column for all existing rows.
However if I do:
select new_column from modified_table ;
I get the total number of rows in the table, but the lines on the screen
have no visible characters. I was expecting these to be nulls, and this
select to return nothing.
How can i make these "invisible" characters visible?
--
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
-- Benjamin Franklin
