class SQLite3::ResultSet
def next
For hashes, the column names are the keys of the hash, and the column
and the column types are accessible via the +types+ property.
For arrays, the column names are accessible via the +fields+ property,
been set to +true+, in which case the returned value will be a hash.
The returned value will be an array, unless Database#results_as_hash has
had, this will return +nil+.
Obtain the next row from the cursor. If there are no more rows to be
def next @stmt.step end