DB test DrawIO

DB.xml

<mxfile host="app.diagrams.net">
  <diagram name="E-commerce DB Schema" id="schema1">
    <mxGraphModel dx="800" dy="600" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1">
      <root>
        <mxCell id="0" />
        <mxCell id="1" parent="0" />

        <!-- Users -->
        <mxCell id="Users" value="Users&#xa;id (PK)&#xa;name&#xa;email" style="shape=swimlane;childLayout=stackLayout;" vertex="1" parent="1">
          <mxGeometry x="40" y="40" width="160" height="120" as="geometry" />
        </mxCell>

        <!-- Products -->
        <mxCell id="Products" value="Products&#xa;id (PK)&#xa;name&#xa;price" style="shape=swimlane;childLayout=stackLayout;" vertex="1" parent="1">
          <mxGeometry x="300" y="40" width="160" height="120" as="geometry" />
        </mxCell>

        <!-- Orders -->
        <mxCell id="Orders" value="Orders&#xa;id (PK)&#xa;user_id (FK)&#xa;order_date" style="shape=swimlane;childLayout=stackLayout;" vertex="1" parent="1">
          <mxGeometry x="40" y="200" width="160" height="120" as="geometry" />
        </mxCell>

        <!-- OrderItems -->
        <mxCell id="OrderItems" value="OrderItems&#xa;id (PK)&#xa;order_id (FK)&#xa;product_id (FK)&#xa;quantity" style="shape=swimlane;childLayout=stackLayout;" vertex="1" parent="1">
          <mxGeometry x="300" y="200" width="180" height="140" as="geometry" />
        </mxCell>

        <!-- Edges (Relationships) -->
        <mxCell id="edge1" style="endArrow=block;" edge="1" source="Orders" target="Users" parent="1">
          <mxGeometry relative="1" as="geometry" />
        </mxCell>
        <mxCell id="edge2" style="endArrow=block;" edge="1" source="OrderItems" target="Orders" parent="1">
          <mxGeometry relative="1" as="geometry" />
        </mxCell>
        <mxCell id="edge3" style="endArrow=block;" edge="1" source="OrderItems" target="Products" parent="1">
          <mxGeometry relative="1" as="geometry" />
        </mxCell>

      </root>
    </mxGraphModel>
  </diagram>
</mxfile>