Specifies that this table exists in another schema. Specifies that this column is a primary key of its table. Defaults to false. Explicitly disables relationships to or from this column that may be implied by the column's name, type and size. Defaults to none. Sometimes the associations displayed on a relationships diagram cause the diagram to become much more cluttered than it needs to be. Enable this setting to not show the relationships between this column and other columns. Use exceptDirect to disable associations on all diagrams except for the diagrams of tables directly (within one degree of separation) connected to this column. Defaults to none. Associates this column with the primary key of another table. Specifies that the referenced table exists in another schema.