replace property
Like insert, except that if the row already exists, it is deleted, and the column values provided are inserted instead.
Unlike insert_or_update, this means any values not explicitly written
become NULL
. In an interleaved table, if you create the child table with
the ON DELETE CASCADE
annotation, then replacing a parent row also
deletes the child rows. Otherwise, you must delete the child rows before
you replace the parent row.
Implementation
Write? replace;