diff --git a/mistral/db/v2/sqlalchemy/models.py b/mistral/db/v2/sqlalchemy/models.py
index 45aa2265..afa0d752 100644
--- a/mistral/db/v2/sqlalchemy/models.py
+++ b/mistral/db/v2/sqlalchemy/models.py
@@ -36,6 +36,8 @@ class Workbook(mb.MistralModelBase):
     definition = sa.Column(sa.Text(), nullable=True)
     spec = sa.Column(st.JsonDictType())
     tags = sa.Column(st.JsonListType())
+
+    # Security properties.
     scope = sa.Column(sa.String(80))
     project_id = sa.Column(sa.String(80))
     trust_id = sa.Column(sa.String(80))
@@ -55,6 +57,8 @@ class Workflow(mb.MistralModelBase):
     definition = sa.Column(sa.Text(), nullable=True)
     spec = sa.Column(st.JsonDictType())
     tags = sa.Column(st.JsonListType())
+
+    # Security properties.
     scope = sa.Column(sa.String(80))
     project_id = sa.Column(sa.String(80))
     trust_id = sa.Column(sa.String(80))
@@ -145,7 +149,16 @@ class Action(mb.MistralModelBase):
     name = sa.Column(sa.String(200))
     description = sa.Column(sa.Text())
 
+    # Ad-hoc action properties.
+    definition = sa.Column(sa.Text(), nullable=True)
+    spec = sa.Column(st.JsonDictType())
+
     # Service properties.
     action_class = sa.Column(sa.String(200))
     attributes = sa.Column(st.JsonDictType())
     is_system = sa.Column(sa.Boolean())
+
+    # Security properties.
+    scope = sa.Column(sa.String(80))
+    project_id = sa.Column(sa.String(80))
+    trust_id = sa.Column(sa.String(80))
diff --git a/mistral/services/workbooks.py b/mistral/services/workbooks.py
index 94d2c427..9c960f88 100644
--- a/mistral/services/workbooks.py
+++ b/mistral/services/workbooks.py
@@ -74,8 +74,19 @@ def _check_workbook_definition_update(wb_db, values):
 
 def _create_or_update_actions(wb_db, actions_spec):
     if actions_spec:
-        # TODO(rakhmerov): Complete when action DB model is added.
-        pass
+        for action_spec in actions_spec:
+            action_name = '%s.%s' % (wb_db.name, action_spec.get_name())
+
+            values = {
+                'name': action_name,
+                'spec': action_spec.to_dict(),
+                'is_system': False,
+                'scope': wb_db.scope,
+                'trust_id': wb_db.trust_id,
+                'project_id': wb_db.project_id
+            }
+
+            db_api_v2.create_or_update_action(action_name, values)
 
 
 def _create_or_update_workflows(wb_db, workflows_spec):
diff --git a/mistral/tests/unit/services/test_workbook_service.py b/mistral/tests/unit/services/test_workbook_service.py
index 2f636c51..392b067c 100644
--- a/mistral/tests/unit/services/test_workbook_service.py
+++ b/mistral/tests/unit/services/test_workbook_service.py
@@ -31,6 +31,12 @@ WORKBOOK = """
 ---
 Version: '2.0'
 
+Actions:
+  concat:
+    base: std.echo
+    base-parameters:
+      output: "{$.str1}{$.str2}"
+
 Workflows:
   wf1:
     type: reverse
@@ -62,6 +68,12 @@ UPDATED_WORKBOOK = """
 ---
 Version: '2.0'
 
+Actions:
+  concat:
+    base: std.echo
+    base-parameters:
+      output: "{$.str1}{$.str2}"
+
 Workflows:
   wf1:
     type: direct
@@ -104,6 +116,20 @@ class WorkbookServiceTest(base.EngineTestCase):
         self.assertIsNotNone(wb_db.spec)
         self.assertListEqual(['test'], wb_db.tags)
 
+        db_actions = db_api.get_actions(name='my_wb.concat')
+
+        self.assertEqual(1, len(db_actions))
+
+        # Action.
+        action_db = self._assert_single_item(db_actions, name='my_wb.concat')
+
+        self.assertFalse(action_db.is_system)
+
+        action_spec = spec_parser.get_action_spec(action_db.spec)
+
+        self.assertEqual('concat', action_spec.get_name())
+        self.assertEqual('std.echo', action_spec.get_base())
+
         db_wfs = db_api.get_workflows()
 
         self.assertEqual(2, len(db_wfs))