ER/Studio - Embarcadero Technologies Product Documentation

USING ER/STUDIO > DEVELOPING THE LOGICAL MODEL
Unify Native Attribute with propagating Attribute
If selected, ER/Studio unifies the propagating foreign with the native attribute in the child table.
NOTE: ER/Studio keeps id in the child entity if you delete the relationship.
Validating the Model
The Model Validation wizard helps enforce your selected standards for data model objects and data dictionary usage.
Validating the model also eases the process of model correction and review. More than 50 checks validate either the
logical or physical model for problems such as missing object definitions, unused domains, identical unique indexes,
and circular relationships. You can choose which validation options to use and sort the report results found by the
wizard so that colleagues know exactly where to begin when correcting a model. You can also build validation
templates by using the Quicklaunch feature.
Validate the Model
1 In the Data Model Explorer, navigate to and then right-click the top-level of the model node.
2 Click Validate Logical Model (or Physical model) from the shortcut menu.
3 In the Model Validation Wizard, choose your validation rules and options as follows:
Validation Options tab: Select the validation rules you want enforced for modeling and for the Data Dictionary.
Object Selection tab: Select the objects to which the rules should be applied.
4 Click Run Validation.
5 Click the Output tab to view and sort the results, and then to export the results if desired.
Notes
• For information on using the Quick Launch feature, see Saving and Using Quick Launch Settings.
• If you have selected the SQL Validation option on the View tab of the Options Editor then whenever you update
the sql for a view, the validation dialog will appear to notify you of any syntax errors. Select Tools > Options >
View.
• If you select View SQL Alerts on the Repository tab of the Options Editor then when you check your models into
the Repository you’ll be notified of any SQL problems. Select Tools > Options > Repository.
Customizing Datatype Mappings
When creating an entity attribute you can assign it a datatype, which defines how the data is stored in the database
along with the length and precision. When you want to generate a physical model from the logical model, the datatype
of the logical attribute is translated into a physical datatype. The target datatype used in the logical to physical
translation depends on the target platform and the datatype mapping. Physical datatypes are platform specific and can
differ depending on your DBMS platform. You can view the specific mappings for each supported platform in the
Datatype Mapping Editor. You can either use the default system mappings or create customized mappings.
EMBARCADERO TECHNOLOGIES > ER/STUDIO® 8.0.3 USER GUIDE 142