I was in the process of migrating a SharePoint 2007 content database to SharePoint 2010 using the attach database upgrade method when my brain stop functioning.  I could not remember the appropriate Powershell command to attach the new database.  All I could remember was the command was part of the SPContentDatabase series of cmdlets.

Enter the venerable HELP command.

By entering the command

help *spContentDatabase

I received the following output:

In short, I was able to get a full list of all spContentDatabase cmdlets.  Yes boys and girls, the help system supports wild cards.  Powerful indeed!