The commands you mentioned (e.g. ORDER BY) are optional extras to the primary commands/keywords (e.g SELECT) and as such i felt that, although they are important, there place wasn't in the "SQL - Basics" tutorial. These commands and more will however be coverd in the "SQL - Advanced" tutorial as was referenced.

* Please note that the DDL part of SQL will be covered, along with more DML commands in the next tutorial I plan to release entitled, “SQL Tutorial – Advanced”.
Thanks for reading my tutoral dude and paying an interest.