Regardless of where you are on your journey towards mastering DB2, you can never neglect to learn the basics to the fullest. To help you learn the basics, we suggest that you use Ember Crooks as your mentor. She is experienced and is writing a blog series about what she knows. Here are the first 10 in the series:
DB2 Basics: Users, Authentication, and Authorization
DB2 Basics: Aliases
DB2 Basics: Storage Groups
DB2 Basics: What is an Instance?
DB2 Basics: What is an Index?