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ReadyRoll maintains two databases:

  • Target database 
    This is the development database or sandbox that you use for debugging and to edit schema objects (e.g. using SSMS). When you deploy, ReadyRoll executes your migration scripts against this database to upgrade it. You shouldn't drop the target database from your SQL Server instance.
     
  • Shadow database
    This is an exact copy of your database schema created automatically from your project scripts (001.sql, 002.sql, 003.sql, etc). It's created every time you use the ReadyRoll DbSync tool to view pending changes or import. The shadow database is used by the SQL Compare engine (that powers ReadyRoll) as the base from which to generate a new migration script. It is safe to drop the database at any time. 
    For details of how the shadow databases is used during the verification stage, see script verification

Changing the Target database connection

The Target Connection string can be set by clicking the Edit button within the Debug tab of the project designer.

This will display the connection dialog, from which you can either browse to the desired server or enter the connection details:
 

Build your solution to update the connection within the DbSync tool-window.

 

Changing the Shadow database connection

By default, the Shadow database will be deployed to the same server that you've chosen to deploy the Target database to.

If you would prefer not to deploy the Shadow database to your Target server, you check the following option on the Debug tab: Always use default connection string for Shadow database.

 

This will cause the Shadow database to be deployed to the connection displayed in the Default Connection String box, typically (localdb)\ProjectsV13.

Build the solution to update the Shadow connection within the DbSync tool-window.




Setting the Shadow connection string

To deploy the Shadow to a different server, this can be done by adjusting the default connection string in the project.

Firstly, under the Target Connection String, click Edit to display the connection dialog. Specify the server that you would like to deploy the Shadow database to:

Then, click Set As Default to set this connection as the Default Connection String.

 

The Default Connection String is a setting that is included in your .sqlproj file. This means that this setting will be shared with others when you check the project into source control, so the connection details you provide should be valid for everyone in your team.

 

Click Edit... once again in order to set the Target Connection String back to its previous setting:

Ensure that the following option is checked: Always use default connection string for Shadow database.

Build the solution to update the connection details within the DbSync tool-window.

When you next Import changes into your project, the Shadow database will be deployed to the specified server. Feel free to drop any databases created by ReadyRoll on any of your other servers (this can be identified by the _SHADOW database name suffix).

 

 

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