The "database" command uses many BEE Variables implicitly, especially in "action" mode, which is almost entirely variable driven.  The variables are under the database object (the dbobj as represented in this document), the matrix class and in some system classes (e.g. status%, message% and session%).

They can be categorised into three groups: Argument Variables (input to the system in "action" mode), System Variables (output from the system), and Paging Variables (also output from the system but for the purpose of display paging).