[py3] Fixed Oracle specific failures

    def last_executed_query(self, cursor, sql, params):

        # http://cx-oracle.sourceforge.net/html/cursor.html#Cursor.statement

        # The DB API definition does not define this attribute.

        if six.PY3:

            return cursor.statement

        else:

            return cursor.statement.decode("utf-8")

    def last_insert_id(self, cursor, table_name, pk_name):

                param = timezone.make_aware(param, default_timezone)

            param = param.astimezone(timezone.utc).replace(tzinfo=None)

        # Oracle doesn't recognize True and False correctly in Python 3.

        # The conversion done below works both in 2 and 3.

        if param is True:

            param = "1"

        elif param is False:

            param = "0"

        if hasattr(param, 'bind_parameter'):

            self.smart_bytes = param.bind_parameter(cursor)

        else:

from django.db.models.sql import compiler

# The izip_longest was renamed to zip_longest in py3

try:

    from itertools import zip_longest

except ImportError:

    from itertools import izip_longest as zip_longest

class SQLCompiler(compiler.SQLCompiler):

        index_start = rn_offset + len(self.query.extra_select)

        values = [self.query.convert_values(v, None, connection=self.connection)

                  for v in row[rn_offset:index_start]]

        for value, field in map(None, row[index_start:], fields):

        for value, field in zip_longest(row[index_start:], fields):

            values.append(self.query.convert_values(value, field, connection=self.connection))

        return tuple(values)