diff --git a/neutron/db/migration/alembic_migrations/versions/50d5ba354c23_ml2_binding_vif_details.py b/neutron/db/migration/alembic_migrations/versions/50d5ba354c23_ml2_binding_vif_details.py
index b7de5fc9f0..f89be7c11d 100644
--- a/neutron/db/migration/alembic_migrations/versions/50d5ba354c23_ml2_binding_vif_details.py
+++ b/neutron/db/migration/alembic_migrations/versions/50d5ba354c23_ml2_binding_vif_details.py
@@ -33,7 +33,6 @@ migration_for_plugins = [
     'neutron.plugins.ml2.plugin.Ml2Plugin'
 ]
 
-from alembic import context
 from alembic import op
 import sqlalchemy as sa
 
@@ -47,13 +46,24 @@ def upgrade(active_plugins=None, options=None):
     op.add_column('ml2_port_bindings',
                   sa.Column('vif_details', sa.String(length=4095),
                             nullable=False, server_default=''))
-    migr_context = context.get_context()
-    with context.begin_transaction():
-        for value in ('true', 'false'):
-            migr_context.execute(
-                "UPDATE ml2_port_bindings SET"
-                " vif_details = '{\"port_filter\": %(value)s}'"
-                " WHERE cap_port_filter = %(value)s" % {'value': value})
+    if op.get_bind().engine.name == 'ibm_db_sa':
+        op.execute(
+            "UPDATE ml2_port_bindings SET"
+            " vif_details = '{\"port_filter\": true}'"
+            " WHERE cap_port_filter = 1")
+        op.execute(
+            "UPDATE ml2_port_bindings SET"
+            " vif_details = '{\"port_filter\": false}'"
+            " WHERE cap_port_filter = 0")
+    else:
+        op.execute(
+            "UPDATE ml2_port_bindings SET"
+            " vif_details = '{\"port_filter\": true}'"
+            " WHERE cap_port_filter = true")
+        op.execute(
+            "UPDATE ml2_port_bindings SET"
+            " vif_details = '{\"port_filter\": false}'"
+            " WHERE cap_port_filter = false")
     op.drop_column('ml2_port_bindings', 'cap_port_filter')
 
 
@@ -61,12 +71,24 @@ def downgrade(active_plugins=None, options=None):
     if not migration.should_run(active_plugins, migration_for_plugins):
         return
 
-    op.add_column('ml2_port_bindings',
-                  sa.Column('cap_port_filter', sa.Boolean(),
-                            nullable=False, default=False))
-    migr_context = context.get_context()
-    with context.begin_transaction():
-        migr_context.execute(
+    if op.get_bind().engine.name == 'ibm_db_sa':
+        # Note(xuhanp): DB2 doesn't allow nullable=False Column with
+        # "DEFAULT" clause not specified. So server_default is used.
+        # Using sa.text will result "DEFAULT 0" for cap_port_filter.
+        op.add_column('ml2_port_bindings',
+                      sa.Column('cap_port_filter', sa.Boolean(),
+                                nullable=False,
+                                server_default=sa.text("0")))
+        op.execute(
+            "UPDATE ml2_port_bindings SET"
+            " cap_port_filter = 1"
+            " WHERE vif_details LIKE '%\"port_filter\": true%'")
+    else:
+        op.add_column('ml2_port_bindings',
+                      sa.Column('cap_port_filter', sa.Boolean(),
+                                nullable=False,
+                                server_default=sa.text("false")))
+        op.execute(
             "UPDATE ml2_port_bindings SET"
             " cap_port_filter = true"
             " WHERE vif_details LIKE '%\"port_filter\": true%'")