diff --git a/django/db/backends/oracle/base.py b/django/db/backends/oracle/base.py
index 89cad12b6c..7d4f2b445a 100644
--- a/django/db/backends/oracle/base.py
+++ b/django/db/backends/oracle/base.py
@@ -221,7 +221,10 @@ WHEN (new.%(col_name)s IS NULL)
     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.
-        return cursor.statement.decode("utf-8")
+        if six.PY3:
+            return cursor.statement
+        else:
+            return cursor.statement.decode("utf-8")
 
     def last_insert_id(self, cursor, table_name, pk_name):
         sq_name = self._get_sequence_name(table_name)
@@ -594,6 +597,12 @@ class OracleParam(object):
                 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:
diff --git a/django/db/backends/oracle/compiler.py b/django/db/backends/oracle/compiler.py
index e21f867f82..24030cdffc 100644
--- a/django/db/backends/oracle/compiler.py
+++ b/django/db/backends/oracle/compiler.py
@@ -1,4 +1,9 @@
 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):
@@ -13,7 +18,7 @@ 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)