duplicate column name foreign key sqleditor

This prevents any foreign key constraints from being applied when updating the child entity. Not For Replication: If selected, updates to the parent will not be replicated to the child entity.Use this option when relational integrity is enforced in the application rather than by an explicit foreign key in the RDBMS. To prevent the FK from being generated, edit the FK column in the Table Editor and select the Hide Key Attribute option. The FK constraint is not generated but the FK column is generated as a native column. If selected, the foreign key (FK) columns (if any) will be ignored when generating DDL, as in the Compare and Merge Utility. If Disable is set but NoValidate is not set, the DDL for an FK created by ALTER TABLE would be the following, since NOVALIDATE is the default option. The same syntax will be used for FKs when created inside the CREATE TABLE or by ALTER TABLE.ĪLTER TABLE ENTITY2 ADD CONSTRAINT BLIVOT For example, if the PK is not disabled, but NoValidate is set, the DDL would beĬONSTRAINT PK1 PRIMARY KEY (PKCOL) NOVALIDATE

If generation of the FK or PK constraint is enabled, NOVALIDATE will be generated if the option is set for the constraint. Specify NoValidate if you do not want the constraint to be applied to the data in the table.

NoValidate: This option is available for the Oracle 9i and later platforms.

If selected, the relationship will be ignored when comparing the physical model with a logical model. If selected, the relationship will not be implemented when generating a physical model, and will be ignored when comparing the logical model with a physical model. If there are no alternate keys or unique indexes in the parent table the primary key will be used. Use this option if you do not want to propagate the primary key.

Parent Key: Lets you select and propagate an Alternate Key (logical model) or a Unique Index (physical model) to a child entity or table.

Complete the Relationship Editor and then click OK to exit the editor.

On the Data Model Window, double-click the relationship.

To revert to the Selection tool, right-click anywhere on the Data Model Window.

Repeat steps 2 and 3 until you have created all necessary relationships.

A rolename lets you rename the attribute of the foreign key to avoid confusion and resolve the relationship conflict. When a primary key is propagated to a child table, the name of the attribute is also propagated to the child table. On the Edit RoleNames dialog you can specify rolenames for foreign keys that are inherited more than once.

The Edit Rolenames dialog displays if overlapping foreign keys are detected when you are drawing a relationship.

Using this editor you can assign rolenames to any overlapping foreign keys otherwise, ER/Studio Data Architect unifies any overlapping Foreign Keys.

The Duplicate Relationship editor displays when you draw a relationship that will result in multiple identifying and/or non-identifying relationships between two entities.

For more information, see Creating and Editing Recursive Relationships. Using this editor you can assign rolenames to any duplicate keys to differentiate the native and foreign key.

The Recursive Relationship editor displays when you create a recursive relationship, which is a non-identifying relationship where the parent and child object are the same.

Here you can resolve these conflicts by assigning rolenames to foreign keys.

The Duplicate Attribute Editor displays If both the parent and child objects have the same column or attribute names.

On the Data Model Window, click the parent object and then click the child object.

Choose Insert > Relationship and then click the type of relationship you want to insert.

On the Data Model Explorer, click the Data Model tab.

Duplicate column name foreign key sqleditor