Model comparison and synchronization

After you make changes to a model, you might want to compare the model to an earlier version of a model. Or, you might want to compare models of two different databases and move the differences between the models.

When you compare two models, you can easily see and navigate through the differences between the models. Comparing a changed model to an earlier version of the model lets you:

You can also use model comparison when you want to migrate the changes from one database environment to another. Comparing the model of the source database to the model of the target database lets you:

Model comparison can also be important when you are about to deploy your change commands to the database and you check to ensure that the current database catalog and base model still match. If the current database has changed and you refresh the base model to reflect the changes, you should compare the base and target models again to verify your planned changes. After you verify the changes, you can regenerate the change commands.

Related concepts
Models
Methods of changing a model
Migration analysis
Related tasks
Changing a model with the Data Model Editor
Changing the diagram of a model
Applying another deployment script to a target model
Changing a model in the Data Project Explorer view


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