All existing relations are shown in the relations windows by a line that connects the primary and other key fields. You can add a relation by using drag-and-drop to drop the field of one table onto the field of the other table. A relation is removed again by selecting it and pressing the Delete key.
在关系窗口中，所有现有关系用线条显示，主关键字字段和其他关键字字段通过该线条相互连接。通过将一个表格中的字段拖到其他表格的字段中，可以新增关系。选择关系并按 Delete 键，可以再次删除创建的关系。