Online Documentation for SQL Administrator for SQL Server
Select databases dialog
The Select Databases dialog appears each time you choose the Select... item of the Database(s) drop-down list when creating or editing some maintenance tasks.
This list displays all databases registered on the server. Here you can define databases against which a maintenance task should be run.
All databases
Generate a maintenance plan that runs maintenance tasks against all Microsoft SQL Server databases except tempdb.
System databases
Generate a maintenance plan that runs maintenance tasks against each of the SQL Server system databases except tempdb. No maintenance tasks are run against user-created databases.
All user databases
Generate a maintenance plan that runs maintenance tasks against all user-created databases. No maintenance tasks are run against the SQL Server system databases.
If you select the Specific databases option then choose among registered databases to define databases for maintenance task by checking the corresponding boxes.
Ignore non-online databases
Check this option to backup databases only in case they are online.