Rearranging ERDs
Tables
To move tables around in the ERD, click on the header and drag the table. There are also Align options in the toolbar that you can use to line up or distribute selected tables.
If a table has a lot of attributes that you do not need to see, collapse the list to show only the table's primary and foreign keys.
- Either right-click on a table and select Hide attributes or Show attributes
- Or double-click on the table header.
To select multiple tables, draw a square around them.
Relationships
If you want to highlight the relationships that affect a table, click the table to select it.
- Blue lines indicate relationships to a foreign key in the selected table.
- Green lines indicate relationships from the primary key in the selected table.
The following screenshot shows the Teacher table is selected:
By default, relationships are straight lines, but you can change them to have angles:
- Click on a relationship line to add an angle point, which appears as a blue dot; see the screenshot on the left.
- Move the mouse pointer over the blue dot. It changes to a four-way arrow to indicate you can drag.
- Drag the point to the position you require.
To remove an unwanted angle, right-click the blue dot and select Remove Point; see the screenshots below:
Hover your mouse pointer over
an angle to see the blue angle point.
Right-click the blue angle point to see the Remove option
