# MapsTo

The databases to map the virtual database to. The databases you specify can be IDOL server databases or other virtual databases that you have set up in the Distributed Action Handler.

NOTE: You cannot configure virtual databases when you set SimpleCombinatorMode to `True`.

Separate multiple databases with commas. There must be no space before or after a comma.

To specify an IDOL server database

- Use the format `IDOLServerNumber:DatabaseName`.

  where,

  `IDOLServerNumber` | The number of the IDOL server installation listed in the `[Engines]` section of the configuration file.
  `DatabaseName` | The name of the IDOL server database to which you want to map the virtual database.

  For example:

      MapsTo=0:Today

To specify a Distributed Action Handler virtual database

- Type the DbName of the virtual database that you want to map to.

  For example:

      MapsTo=Accounts

NOTE: You must ensure the `[VDBN]` section to which you map the virtual database has a lower number than the current `[VDBN]` section. That is, the virtual database in `[VDB2]` can map to the virtual database in `[VDB1]`, but it is not possible for the virtual database in `[VDB1]` to map to the virtual database in `[VDB2]`. This ensures that virtual database mappings are not circular.

Type: | String
Default: |
Required: | Yes
Configuration Section: | VDB`N`
Example: | `MapsTo=0:Today,2:News,Accounts` In this example, the virtual database is mapped to the `Today` database in IDOL Server 0, the `News` database in IDOL Server 2, and the `Accounts` virtual database.
See Also: | DbName VirtualDatabases

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