diff --git a/README.md b/README.md
index d7d9cb6..025ed2b 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,10 @@ pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple/
 
 - mysql安装失败手动下载https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient
 
+//初始化数据库
+
 python manage.py migrate --settings=py_vislib.settings.local
 
+//启动项目
+
 python manage.py runserver --settings=py_vislib.settings.local
\ No newline at end of file
diff --git a/vislib/views/source.py b/vislib/views/source.py
index 8eb0ecb..02bfce1 100644
--- a/vislib/views/source.py
+++ b/vislib/views/source.py
@@ -151,7 +151,7 @@ def sourceTableSave(request):
       id=uuid.uuid4(),
       database=source,
       table=table['table'],
-      # table_alias=table['table_alias'],
+      table_alias='' if table['table_alias'] is None else table['table_alias'],
       creator=request.user,
       status=table['status'],
       updated_at=default_datetime()