Right-click the root entry in the "Define the transformation input schema and output actions" pane, and select New >Type from the context menu.
右击“定义转换输入模式以及输出操作”窗格中的 root 条目,并从背景菜单中选择 New >Type。
3
First, modify the database schema, then update the code to support the new schema. Next, add the functionality to save feed entry and web pages to the database.