diff --git a/superset/migrations/versions/817e1c9b09d0_add_not_null_to_dbs_sqlalchemy_url.py b/superset/migrations/versions/817e1c9b09d0_add_not_null_to_dbs_sqlalchemy_url.py
new file mode 100644
index 00000000000..fc1a5aab671
--- /dev/null
+++ b/superset/migrations/versions/817e1c9b09d0_add_not_null_to_dbs_sqlalchemy_url.py
@@ -0,0 +1,43 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""add_not_null_to_dbs_sqlalchemy_url
+
+Revision ID: 817e1c9b09d0
+Revises: db4b49eb0782
+Create Date: 2019-12-03 10:24:16.201580
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "817e1c9b09d0"
+down_revision = "89115a40e8ea"
+
+
+def upgrade():
+    with op.batch_alter_table("dbs") as batch_op:
+        batch_op.alter_column(
+            "sqlalchemy_uri", existing_type=sa.VARCHAR(length=1024), nullable=False
+        )
+
+
+def downgrade():
+    with op.batch_alter_table("dbs") as batch_op:
+        batch_op.alter_column(
+            "sqlalchemy_uri", existing_type=sa.VARCHAR(length=1024), nullable=True
+        )
diff --git a/superset/models/core.py b/superset/models/core.py
index 9d8addbc0ab..33a7c8e543e 100755
--- a/superset/models/core.py
+++ b/superset/models/core.py
@@ -766,7 +766,7 @@ class Database(
     verbose_name = Column(String(250), unique=True)
     # short unique name, used in permissions
     database_name = Column(String(250), unique=True, nullable=False)
-    sqlalchemy_uri = Column(String(1024))
+    sqlalchemy_uri = Column(String(1024), nullable=False)
     password = Column(EncryptedType(String(1024), config["SECRET_KEY"]))
     cache_timeout = Column(Integer)
     select_as_create_table_as = Column(Boolean, default=False)
diff --git a/tests/base_tests.py b/tests/base_tests.py
index 0f32872ad79..6d8adc97829 100644
--- a/tests/base_tests.py
+++ b/tests/base_tests.py
@@ -228,6 +228,7 @@ class SupersetTestCase(TestCase):
             cls=models.Database,
             criteria={"database_name": database_name},
             session=db.session,
+            sqlalchemy_uri="sqlite://test",
             id=db_id,
             extra=extra,
         )
diff --git a/tests/security_tests.py b/tests/security_tests.py
index abb6c0355c7..f575b57ffaf 100644
--- a/tests/security_tests.py
+++ b/tests/security_tests.py
@@ -316,7 +316,9 @@ class RolePermissionTests(SupersetTestCase):
 
     def test_set_perm_database(self):
         session = db.session
-        database = Database(database_name="tmp_database")
+        database = Database(
+            database_name="tmp_database", sqlalchemy_uri="sqlite://test"
+        )
         session.add(database)
 
         stored_db = (
@@ -346,7 +348,9 @@ class RolePermissionTests(SupersetTestCase):
 
     def test_set_perm_slice(self):
         session = db.session
-        database = Database(database_name="tmp_database")
+        database = Database(
+            database_name="tmp_database", sqlalchemy_uri="sqlite://test"
+        )
         table = SqlaTable(table_name="tmp_perm_table", database=database)
         session.add(database)
         session.add(table)