You have now learned how to use IBM Data Studio to create and connect to databases. You also learned how to use it to create and modify objects that exist within the database. Most actions you do in Data Studio can generate the command that can be saved for use in a script or entered in the command line, even though using Data Studio can be much simpler than typing in commands. Additionally, you have been introduced to the major objects that exist in a DB2 database as well as their general function.
The DB2 10.1 Information Center is most comprehensive source for DB2 documentation and should contain answers to most questions you might have, including all commands and descriptions for all command options. Also, developerWorks has many other very useful DB2 articles and tutorials that are designed for those that are new to databases.