How to Change the Arrowheads on the Database "Relationship" Connector"
Connectors are used to connect shapes in Visio. They are one of the most important elements of the diagram and are required to convey flow and relationship between shapes Use connectors with multiple labels; Locate the Developer tab A static connection is the one that glues to connection points on . Crow's Foot Notation is used in ERD (Entity Relationship Diagram), Visio , , , , to draw ER diagram with Crow's Foot. Define relationships in Visio using primary and foreign keys so that you can From the Object Relational or Entity Relationship stencil drag a Relationship.
In the Select by Type window you can choose either of the below options to select all connectors: Shape role Layer Locate and set re-routing If your connectors are automatically re-routing or moving away on dragging a shape near it as shown below while this is not the behavior that you want, there are a few settings that could be causing this and hence can be altered to achieve the required behavior.
Behavior settings for the shape that is causing the connectors to move away [Shape-level setting] Select the shape that is causing the connector to move away. On the Developer tab refer the section for locating Developer tabin the Shape Design group, click on Behavior.
In the Behavior settings window that opens, go to the Placement tab. In the Placement behavior dropdown, select either of the below: Do not lay out and route around Lay out and route-around Check the check-boxes for horizontal and vertical routing through the shape in the Interaction with connectors section. Behavior settings for the connectors [Shape-level setting] You can choose to change settings for the connectors instead of the shapes that are causing the re-routing.
In the Line routing section, choose Reroute as never from the drop down list of options. Locate and set glue settings If your connectors are not sticking to shapes while trying to connect shapes or are losing connect to shapes when shapes are moved as shown belowthen you may want to check if your Glue settings are active. When a connector is glued or attached to a shape, it retains the connection to the shape even when the shape is moved around.
Glue settings are available at the layer level and document level. So, in effect, layers and documents retain their glue settings unless changed. Layer-level glue settings To make Glue active for the Connector layer, on the Home tab, in the Editing group, from the Layers pop-up, select Layer properties. Document-level glue settings To open Snap and Glue settings, on the View tab, in the Visual Aids group, click on the pop-out icon.
Note The connectors that were drawn with the glue settings off will not automatically get connected to shapes.
How to create a relationship diagram by using Visio - Microsoft Community
These must be connected to shapes after setting on the Glue and will retain the glue to shapes thereafter, even when shapes are moved. Add line jumps You may want to choose the line jump style for cross-over connectors to be a gap or an arc or a square and so on. These settings are available at the page level as well as at the shape connector level. Page-level Right-click on the page tab below the canvas and open Page Setup from the pop-up menu. In the Page Setup window that opens, go to the Layout and Routing tab.
In the Line jumps section, you can choose the line jump style from the dropdown. You can choose the line jump style to be a Gap or a Square or an Arc and so on.
In the Behavior settings window that opens, go to the Connector tab. In the Line jumps section, choose your preferred Line jump style from the drop down list of options.
Use connectors with multiple labels Users have often provided feedback about the need to use connectors with multiple labels.
The connector used from the Home tab on the ribbon can support only one label. A quick workaround A workaround for Visio Professional that is often suggested is to use Relationship or Relationship connector or Association shape from UML class stencil and database related stencils in Software and Database category and choose to show multiplicity for these connector shapes.
Note that these stencils are available for use only in the Professional and Pro versions of Visio.
To use these stencils, go to the Stencils pane on the left, choose More Shapes, hover over Software and Database in the fly-out and choose either UML Class stencil or any of the database stencils.
Click Yes to remove the relationship from both the drawing and the underlying model. Click No to remove only the line on the drawing. If you click No and later decide to add the line back into the drawing, select one of the tables in the relationship and, on the Database menu, click Show Related Tables.
All you need to know about Visio desktop connectors
You can choose to always or never drop deleted relationships from the underlying model. On the Database menu, point to Options, click Modeling, and go to the Logical diagram tab.
Define a relationship as one-to-one or as one-to-many The cardinality of a relationship describes how many rows in one table can relate to how many rows in another table.How to Model a Many to One Relationship in MS Visio 2010
For example, one department can have many employees, but an employee can belong to only one department. Cardinality is usually expressed as one-to-one, one-to-many, and many-to-many. In the Database Properties window, under Categories, click Miscellaneous. Under Cardinality choose the cardinality that fits the relationship best. For one-to-many relationships that would be either Zero or more or One or more.
For one-to-one relationships that would be either Zero or one or Exactly one. Show relationships and their properties in a diagram You can choose to show or hide information about relationships in your diagram.
How to create a relationship diagram by using Visio 2010
On the Database menu, point to Options, and then click Document. On the Relationships tab, check information you want to show on the diagram. You can show or hide Relationships.