What is ArcSDE?
A quick tour of administering ArcSDE geodatabases
Essential ArcSDE geodatabase vocabulary
ArcSDE error messages
What is a geodatabase?
Geodatabase storage is based on relational principles
The geodatabase is object relational
Geodatabase storage in relational databases
How are geodatabases stored in a DBMS?
Geodatabase transaction management
Geodatabase XML
A short history lesson on simple features