Schema map for tables The schema map displays the details of tables and their relationships in a visual manner, allowing administrators to view and easily access different parts of the database schema. The schema map can also be printed directly from a browser. Schema relationship types supported, and the colors used for them, are:Table 1. Schema Map for Tables Relationship type Color used Referenced by Red Referencing Orange Extended by Green Extending Blue By default, all these types of relationship are displayed, but you can view or hide each type. Generate a schema mapHow to generate a schema map.View the schema mapThe schema map shows the selected table in yellow, typically centered, and all tables related to that table, typically shown at the sides.